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Recent advances in chemical modifications of graphene

Sunil P. Lonkar1, Yogesh S. Deshmukh2, and Ahmed A. Abdala1,† (*)

1 Department of Chemical Engineering, The Petroleum Institute, PO Box 2533 Abu Dhabi, UAE
2 Faculty of Humanities and Sciences, Maastricht Science Programme, Maastricht University, Minderbroedersberg 4-6, 6211LK Maastricht, the Netherlands
Present address: Department of Petroleum Refining and Chemical Engineering, Suez University, Suez, Egypt

DOI 10.1007/s12274-014-0622-9

Nano Research 2015, 8(4): 1039每1074

Address correspondence to aabdala@pi.ac.ae

Review of recent research trends in covalent and noncovalent modifications of graphene, analysis of the associated array of app- lications, and prospective on relevant future research are discussed.

    

Wrinkle-free graphene with spatially uniform electrical properties grown on hot-pressed copper

Jeong Hun Mun1, Joong Gun Oh1, Jae Hoon Bong1, Hai Xu2, Kian Ping Loh2, and Byung Jin Cho1 (*)

1 Department of Electrical Engineering, KAIST, Daejeon 305-701, Korea
2 Department of Chemistry, National University of Singapore, Singapore 117543, Singapore

DOI 10.1007/s12274-014-0585-x

Nano Research 2015, 8(4): 1075每1080

Address correspondence to elebjcho81@kaist.ac.kr

An approach utilizing a hot-press to form wrinkle-free monolayer graphene on a Cu thin film using a chemical vapor deposition (CVD) process is introduced. With this method, an extremely flat Cu thin film is obtained even after the high temperature annealing and this allows the formation of wrinkle-free monolayer graphene on top of the flat Cu surface.

    

Understanding the stability and reactivity of ultrathin tellurium nanowires in solution: An emerging platform for chemical transformation and material design

Liang Xu, Hai-Wei Liang, Hui-Hui Li, Kai Wang, Yuan Yang, Lu-Ting Song, Xu Wang, and Shu-Hong Yu (*)

Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China

DOI 10.1007/s12274-014-0586-9

Nano Research 2015, 8(4): 1081每1097

Address correspondence to shyu@ustc.edu.cn

Ultrathin tellurium nanowires (TeNWs), as a model material, have been used to study the stability of nanomaterials in aqueous solution through an accelerated oxidation process from the viewpoint of reaction kinetics, leading to a new approach for the design and synthesis of other unique one-dimensional nanostructures by a chemical transformation process using the intermediate nanostructures ※captured§ during the dynamic oxidation process under different conditions.

    

Interfacial state induced ultrasensitive ultraviolet light photodetector with resolved flux down to 85 photons per second

Yong-Qiang Yu1, Lin-Bao Luo1 (*), Ming-Zheng Wang1, Bo Wang1, Long-Hui Zeng1, Chun-Yan Wu1, Jian-Sheng Jie2 (*), Jian-Wei Liu3, Li Wang1 and Shu-Hong Yu3 (*)

1 School of Electronic Science and Applied Physics, Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui 230009, China
2 Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, China
3 Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China

DOI 10.1007/s12274-014-0587-8

Nano Research 2015, 8(4): 1098每1107

Address correspondence to Linbao Luo, luolb@hfut.edu.cn; Jiansheng Jie, jsjie@suda.edu.cn; Shu-Hong Yu, shyu@ustc.edu.cn

An ultrasensitive ultraviolet (UV) detector based on a p-type ZnS nanoribbon (NR)/indium tin oxide (ITO) Schottky barrier diode (SBD) has been fabricated. The device exhibits a pseudo-photovoltaic behavior which can allow the SBD to detect UV light irradiation with incident power of 6 ℅ 10每17 W (~85 photons/s on the NR).

    

MoSe2 porous microspheres comprising monolayer flakes with high electrocatalytic activity

Yejun Zhang1, Qiufang Gong2, Lun Li1, Hongchao Yang1, Yanguang Li2, and Qiangbin Wang1 (*)

1 Key Laboratory of Nano每Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
2 Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China

DOI 10.1007/s12274-014-0590-0

Nano Research 2015, 8(4): 1108每1115

Address correspondence to qbwang2008@sinano.ac.cn

We report a facile colloidal route to synthesize MoSe2 porous microspheres with diameters of 400每600 nm made up of monolayer flakes. The robust 3D MoSe2 porous microspheres exhibit remarkable activity and durability for the electrocatalytic hydrogen evolution reaction (HER) in acid, maintaining a small onset overpotential of ~77 mV and keeping a small overpotential of 100 mV with a current density of 5 mA/cm2 after 1,000 cycles.

    

Efficient CH3NH3PbI3 perovskite solar cells with 2TPA- n-DP hole-transporting layers

Lifeng Zhu1, Junyan Xiao1, Jiangjian Shi1, Junjie Wang2, Songtao Lv1, Yuzhuan Xu1, Yanhong Luo1, Yin Xiao2, Shirong Wang2, Qingbo Meng1 (*), Xianggao Li2 (*), and Dongmei Li1 (*)

1 Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condense Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2 Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

DOI 10.1007/s12274-014-0592-y

Nano Research 2015, 8(4): 1116每1127

Address correspondence to Qingbo Meng, qbmeng@iphy.ac.cn; Xianggao Li, lixianggao@tju.edu.cn; Dongmei Li, dmli@iphy.ac.cn

A series of perovskite solar cells with 2TPA-n-DP (TPA = 4,4'-((1E, 1'E,3E,3'E)-[1,1'-biphenyl]-4,4'-diylbis(buta-1,3-diene-4, 1-diyl)); DP = N,N-di-p-tolylaniline; n = 1每4) as the hole-transporting material (HTM) have been fabricated. Power conversion efficiencies (PCE) of up to 12.96% have been achieved, comparable to a device with (2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene) (spiro-OMeTAD) as the HTM under similar conditions.

    

Diffusive transport of two charge equivalent and structurally similar ruthenium complex ions through graphene oxide membranes

Michael Coleman1 and Xiaowu (Shirley) Tang1,2 (*)

1 Department of Chemistry, 200 University Ave West, Waterloo, Ontario N2L 3G1, Canada
2 Waterloo Institute for Nanotechnology, 200 University Ave West, Waterloo, Ontario N2L 3G1, Canada

DOI 10.1007/s12274-014-0593-x

Nano Research 2015, 8(4): 1128每1138

Address correspondence to tangxw@uwaterloo.ca

This paper presents a detailed study of the diffusive transport of Ru(bpy)32+ and Ru(phen)32+ across graphene oxide membranes, which helps identify the effects of steric interactions on ion transport in a matrix of other mechanisms.

    

Electrical field tuning of magneto-Raman scattering in monolayer graphene

Xiaonan Shen1,∫, Caiyu Qiu1,2,∫, Bingchen Cao1, Chunxiao Cong1, Weihuang Yang1, Haomin Wang1, and Ting Yu1,3,4 (*)

1 Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore, Singapore
2 Wenzhou Institute of Biomaterials and Engineering, Wenzhou 325001, China
3 Department of Physics, Faculty of Science, National University of Singapore, 117542 Singapore, Singapore
4 Graphene Research Center, Faculty of Science, National University of Singapore, 117546 Singapore, Singapore
These authors contributed equally to this work.

DOI 10.1007/s12274-014-0594-9

Nano Research 2015, 8(4): 1139每1147

Address correspondence to yuting@ntu.edu.sg

We report a study of the electrical field tuning of the magneto- phonon resonance in monolayer graphene by Raman spectroscopy.

    

Flexible fiber-shaped supercapacitors based on hierarchically nanostructured composite electrodes

Henghui Xu, Xianluo Hu (*), Yongming Sun, Huiling Yang, Xiaoxiao Liu, and Yunhui Huang (*)

State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

DOI 10.1007/s12274-014-0595-8

Nano Research 2015, 8(4): 1148每1158

Address correspondence to Xianluo Hu, huxl@mail.hust.edu.cn; Yunhui Huang, huangyh@mail.hust.edu.cn

A novel design of all-solid-state, highly flexible, coaxial fiber asymmetric supercapacitors (ASCs) has been developed by wrapping a carbon nanotube/carbon paper electrode on a hierarchically nanostructured nanoporous gold@MnO2 wire. The as-fabricated coaxial fiber ASCs can be reversibly charged/discharged at a high voltage of 1.8 V, delivering a high energy density of 5.4 米W﹞h﹞cm每2 and power density of 2,531 米W﹞cm每2.

    

Threshold voltage tuning and printed complementary transistors and inverters based on thin films of carbon nanotubes and indium zinc oxide

Pattaramon Vuttipittayamongkol1,†,∫, Fanqi Wu2,∫, Haitian Chen1, Xuan Cao2, Bilu Liu1, and Chongwu Zhou1,2 (*)

1 Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA
2 Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA 90089, USA
Present address: School of Information Technology, Mae Fah Luang University, Chiang Rai 57100, Thailand
These authors contributed equally to this work.

DOI 10.1007/s12274-014-0596-7

Nano Research 2015, 8(4): 1159每1168

Address correspondence to chongwuz@usc.edu

In this work, we have demonstrated inkjet printed complementary transistors and inverters based on carbon nanotube and indium zinc oxide thin film transistors operating in enhancement modes.

    

Colourimetric redox-polyaniline nanoindicator for in situ vesicular trafficking of intracellular transport

Eun Bi Choi1,∫, Jihye Choi1,∫, Seo Ryung Bae1, Hyun-Ouk Kim1, Eunji Jang1, Byunghoon Kang1, Myeong-Hoon Kim1, Byeongyoon Kim3, Jin-Suck Suh2, Kwangyeol Lee3, Yong-Min Huh2 (*), and Seungjoo Haam1 (*)

1 1Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 120-749, Republic of Korea
2 Department of Radiology, College of Medicine, Yonsei University, Seoul 120-752, Republic of Korea
3 Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
These authors contributed equally to this work.

DOI 10.1007/s12274-014-0597-6

Nano Research 2015, 8(4): 1169每1179

Address correspondence to Yong-Min Huh, ymhuh@yuhs.ac; Seungjoo Haam, haam@yonsei.ac.kr

Simple colorimetric redox-polyaniline nanoindicators comprising silica-coated polyaniline nanoparticles with adsorbed cyanine dye fluorophores Cy3 and Cy7 (FPSNICy3 and FPSNICy7) have been fabricated as proton-sensitive nanoindicators.

    

Nanoparticles-based nanochannels assembled on a plastic flexible substrate for label-free immunosensing

Alfredo de la Escosura-Muñiz1, Marisol Espinoza-Castañeda1, Madoka Hasegawa2, Laetitia Philippe2, and Arben Merkoçi1,3 (*)

1 ICN2每Nanobioelectronics & Biosensors Group, Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra (Barcelona), Spain
2 EMPA, Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, 3602Thun, Switzerland
3 ICREA每Institucio Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain

DOI 10.1007/s12274-014-0598-5

Nano Research 2015, 8(4): 1180每1188

Address correspondence to arben.merkoci@icn.cat

Screen-printed indium tin oxide/polyethylene terephthalate (ITO/ PET) electrodes modified with a homogeneous monolayer of assembled polystyrene nanospheres allow proteins to be detected through the blockage of the nanochannels created in the inter- nanosphere spaces.

    

Novel nanocomposites based on a strawberry-like gold- coated magnetite (Fe@Au) for protein separation in multiple myeloma serum samples

Jos谷 E. Ara迆jo1,2, Carlos Lodeiro1,2, Jos谷 L. Capelo1,2, Benito Rodr赤guez-Gonz芍lez3, Alcindo A. dos Santos4, Hugo M. Santos1,2 (*), and Javier Fern芍ndez-Lodeiro1,2,4 (*)

1 BIOSCOPE Research Group, UCIBIO-REQUIMTE, Department of Chemistry, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516 Caparica, Portugal
2 PROTEOMASS Scientific Society, Madan Parque, Rua dos Inventores, 2825-182 Caparica, Portuga
3 Scientific and Technological Research Assistance Centre (CACTI), University of Vigo, Vigo, Spain
4 Instituto de Qu赤mica, Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 748, CxP. 26077, Sao Paulo 05508-000, Brazil

DOI 10.1007/s12274-014-0599-4

Nano Research 2015, 8(4): 1189每1198

Address correspondence to Hugo M. Santos ,hmsantos@fct.unl.pt; Javier Fern芍ndez-Lodeiro, j.lodeiro@fct.unl.pt

Strawberry-like gold-coated magnetite (Fe@Au) nanocomposites have been synthesized and used as a proteome fractionation tool to identify potential biomarkers of multiple myeloma.

    

In situ synthesis of graphitic-C3N4 nanosheet hybridized N-doped TiO2 nanofibers for efficient photocatalytic H2 production and degradation

Cheng Han1, Yingde Wang1,2 (*), Yongpeng Lei3,4 (*), Bing Wang1, Nan Wu1, Qi Shi1, and Qiong Li2

1 Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, National University of Defense Technology, Changsha 410073, China
2 College of Materials Science and Engineering, Wuhan Textile University, Wuhan 430074, China
3 College of Basic Education, National University of Defense Technology, Changsha 410073, China
4 State Key Laboratory of Low-Dimensional Quantum Physics and Department of Chemistry, Tsinghua University, Beijing 100084, China

DOI 10.1007/s12274-014-0600-2

Nano Research 2015, 8(4): 1199每1209

Address correspondence to Yongpeng Lei, lypkd@163.com; Yingde Wang, wyd502@163.com

Graphitic carbon nitride nanosheet (g-C3N4 NS) hybridized nitrogen doped titanium dioxide (N-TiO2) nanofibers (GCN/NT NFs) have been synthesized in situ via a simple electrospinning process combined with a modified heat-etching method. The mesoporous NFs with large surface area, enhanced light absorption capacity and improved electron transport ability, give a high photocatalytic H2 production rate of 8,931.3 米mol﹞h每1﹞g每1 under simulated solar light.

    

Thermal conductivity determination of suspended mono- and bilayer WS2 by Raman spectroscopy

Namphung Peimyoo1, Jingzhi Shang1, Weihuang Yang1, Yanlong Wang1, Chunxiao Cong1, and Ting Yu1,2,3 (*)

1 Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore, Singapore
2 Department of Physics, Faculty of Science, National University of Singapore, 117542 Singapore, Singapore
3 Graphene Research Center, Faculty of Science, National University of Singapore,117546 Singapore, Singapore

DOI 10.1007/s12274-014-0602-0

Nano Research 2015, 8(4): 1210每1221

Address correspondence to yuting@ntu.edu.sg

By use of temperature- and power-dependent Raman scattering, the extracted thermal conductivities of suspended mono- and bilayer WS2 grown by chemical vapor deposition are 32 and 53 W/(m﹞K), respectively.

    

Restoring pristine Bi2Se3 surfaces with an effective Se decapping process

Jixia Dai, Wenbo Wang, Matthew Brahlek, Nikesh Koirala, Maryam Salehi, Seongshik Oh, and Weida Wu (*)

Department of Physics and Astronomy, Rutgers University, Piscataway NJ 08854, USA

DOI 10.1007/s12274-014-0607-8

Nano Research 2015, 8(4): 1222每1228

Address correspondence to wdwu@physics.rutgers.edu

With a optimal Se capping and decapping recipe, films of topological insulator Bi2Se3 were prepared with pristine high quality surfaces in an ex situ experimental apparatus

    

Optoelectronic switching of nanowire-based hybrid organic/oxide/semiconductor field-effect transistors

Eunhye Baek1, Sebastian Pregl1,2, Mehrdad Shaygan3, Lotta Römhildt1, Walter M. Weber2,4, Thomas Mikolajick2,4, Dmitry A. Ryndyk1,2,5, Larysa Baraban1 (*), and Gianaurelio Cuniberti1,2,5 (*)

1 Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany
2 Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany
3 Division of IT Convergence Engineering, Pohang University of Science and Technology, Pohang, Korea
4 NaMLab GmbH, Nöthnitzer Strasse 64, 01187 Dresden, Germany
5 Dresden Center for Computational Materials Science, TU Dresden, 01062 Dresden, Germany

DOI 10.1007/s12274-014-0608-7

Nano Research 2015, 8(4): 1229每1240

Address correspondence to Larysa Baraban, larysa.baraban@nano.tu-dresden.de; Gianaurelio Caniberti, g.cuniberti@tu-dresden.de

Novel hybrid organic/oxide/semiconductor (OOS) field-effect transistors have been developed and the dynamics and the efficiency of the optoelectronic switching have been shown to depend strongly on the energy states of the organic layer. The excitonic diffusion phenomena of the hybrid OOS capacitance means that the light- sensitive molecular layer can be effective optical gating material.

    

In situ electron holography of the dynamic magnetic field emanating from a hard-disk drive writer

Joshua F. Einsle1, Christophe Gatel2,3 (*), Aurélien Masseboeuf2, Robin Cours2, Muhammad A. Bashir4, Mark Gubbins4, Robert M. Bowman1, and Etienne Snoeck2

1 Centre for Nanostructured Media, School of Mathematics and Physics, Queen*s University Belfast, Belfast BT7 1NN, UK
2 CEMES每CNRS, 29 rue J. Marvig, 31055 Toulouse, France
3 Universit谷 de Toulouse Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
4 Seagate Technology, 1 Disc Drive, Springtown Industrial Estate, Derry City, Co. BT48 OBF Londonderry, UK

DOI 10.1007/s12274-014-0610-0

Nano Research 2015, 8(4): 1241每1249

Address correspondence to gatel@cemes.fr

We report the complete in situ quantitative mapping of the magnetic field generated by a functioning write pole in operation using electron holography.

    

Bilayered semiconductor graphene nanostructures with periodically arranged hexagonal holes

Dmitry G. Kvashnin1 (*), P谷ter Vancs車2, Liubov Yu. Antipina3, G谷za I. M芍rk2, L芍szl車 P. Bir車2, Pavel B. Sorokin1,3, and Leonid A. Chernozatonskii1 (*)

1 Emanuel Institute of Biochemical Physics, 4 Kosigina Street, Moscow, 119334, Russia
2 Institute of Technical Physics and Materials Science, Research Centre for Natural Sciences, H-1525 Budapest, P.O. Box 49, Hungary
3 Technological Institute of Superhard and Novel Carbon Materials, 7a Centralnaya Street, Troitsk, Moscow, 142190, Russia

DOI 10.1007/s12274-014-0611-z

Nano Research 2015, 8(4): 1250每1258

Address correspondence to Dmitry G. Kvashnin, dgkvashnin@gmail.com; Leonid A. Chernozatonskii, cherno@sky.chph.ras.ru

In this work the novel hexagonal nanomeshes based on bilayered graphene were studied. Electronic and transport properties and the dependences of the band gap on two main parameters characterizing the geometry have been studied in detail.

    

Novel carbon nanohybrids as highly efficient magnetic resonance imaging contrast agents

Rongli Cui, Juan Li, Huan Huang, Mingyi Zhang, Xihong Guo, Yanan Chang, Min Li, Jinquan Dong, Baoyun Sun(*), and Gengmei Xing(*) CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China

These authors contributed equally to this work.

DOI 10.1007/s12274-014-0613-x

Nano Research 2015, 8(4): 1259每1268

Address correspondence to Gengmei Xing, xinggm@ihep.ac.cn; Baoyun Sun, sunby@ihep.ac.cn

Novel carbon nanohybrids of GO每Gd@C82 have been successfully constructed as a new highly efficient and low toxicity magnetic resonance imaging (MRI) contrast agent. A ※secondary spin- electron transfer§ relaxation mechanism is proposed to explain how the encaged Gd3+ ions of the carbon nanohybrids interact with the surrounding water molecules.

    

Globin-like mesoporous CeO2: A CO-assisted synthesis based on carbonate hydroxide precursors and its applications in low temperature CO oxidation

Yeheng He, Xin Liang (*), and Biaohua Chen

Chemical Engineering College, Beijing University of Chemical Technology, Beijing 100029, China

DOI 10.1007/s12274-014-0614-9

Nano Research 2015, 8(4): 1269每1278

Address correspondence to liangxin@mail.buct.edu.cn

A CO-assisted hydrothermal approach has been developed to prepare globin-like mesoporous CeO2 and a possible formation mechanism is proposed.

    

Nanophase separation and structural evolution of block copolymer films: A ※green§ and ※clean§ supercritical fluid approach

Tandra Ghoshal1,2, Subhajit Biswas1,2, Colm O*Regan1,2, Justin D. Holmes1,2 (*), and Michael A. Morris1,2 (*)

1 Materials Chemistry and Analysis Group and Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland
2 Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN/AMBER), Trinity College Dublin, Dublin, Ireland

DOI 10.1007/s12274-014-0616-7

Nano Research 2015, 8(4): 1279每1292

Address correspondence to Michael A. Morris, m.morris@ucc.ie; Justin D. Holmes, j.holmes@ucc.ie

Supercritical carbon dioxide (scCO2) is shown to be a green alternative to conventional organic solvents for inducing phase separation and ordering in block copolymer thin films at low temperatures and pressures. Nanopores or nanocellular structures can be introduced into the films. The ability to completely remove the scCO2 makes the films useful for many technological and biological applications.

    

Probing enzyme每nanoparticle interactions using combinatorial gold nanoparticle libraries

Yanyan Liu1, David A. Winkler2,3 (*), V. Chandana Epa4, Bin Zhang1, and Bing Yan1 (*)

1 School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
2 CSIRO Manufacturing Flagship, Bag 10, Clayton South MDC 3169, Australia
3 Monash Institute of Pharmaceutical Sciences, Parkville 3052, Australia
4 CSIRO Manufacturing Flagship, Parkville 3052, Australia

DOI 10.1007/s12274-014-0618-5

Nano Research 2015, 8(4): 1293每1308

Address correspondence to Bing Yan, drbingyan@yahoo.com; David A. Winkler, dave.winkler@csiro.au

Functionalized gold nanoparticle libraries provide information on how they interact with enzymes, important proteins in human metabolism. Models allow quantitative prediction of the inhibition and binding of nanoparticles to the surface of common enzymes like acetylcholinesterase.

    

Surfactant effect of antimony addition to the morphology of self-catalyzed InAs1xSbx nanowires

E. A. Anyebe1, M. K. Rajpalke2, T. D. Veal2, C. J. Jin3, Z. M. Wang4 (*), and Q. D. Zhuang1,4 (*)

1 Physics Department, Lancaster University, Lancaster LA1 4YB, UK
2 Stephenson Institute for Renewable Energy and Department of Physics, University of Liverpool, Liverpool L69 7ZF, UK
3 School of Physics and Engineering, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
4 Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan610054, China

DOI 10.1007/s12274-014-0621-x

Nano Research 2015, 8(4): 1309每1319

Address correspondence to Q. D. Zhuang, q.zhuang@lancaster.ac.uk; Z. M. Wang, zhmwang@gmail.com

Antimony (Sb) addition to InAs enables band gap engineering and potentially extends its spectral response to the long-wavelength infrared range for detection of highly important environmental gases. We show that trace amount of Sb flux significantly increases the nanowire lateral growth rate while it suppresses axial growth rate. We attribute these behaviours to Sb-induced modifications to the kinetic and thermodynamic processes.

    

Highly uniform carbon nanotube nanomesh network transistors

Sung-Jin Choi1, Patrick Bennett2,3, Dongil Lee4, and Jeffrey Bokor2,5 (*)

1 School of Electrical Engineering, Kookmin University, Seoul 136-702, South Korea
2 Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA
3 Applied Science & Technology, University of California, Berkeley, CA 94720, USA
4 Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
5 Materials Sciences Division, Lawrence Berkeley National Laboratories, CA 94720, USA

DOI 10.1007/s12274-014-0623-8

Nano Research 2015, 8(4): 1320每1326

Address correspondence to jbokor@eecs.berkeley.edu

We have fabricated a new type of single-walled carbon nanotube (SWNT) thin-film transistor (TFT) structure with a nanomesh network channel from a preseparated semiconducting nanotube solution and simultaneously achieved both high uniformity and a high on/off ratio for application in large-scale integrated circuits.

    

Graphene每GaN Schottky diodes

Seongjun Kim1, Tae Hoon Seo2, Myung Jong Kim2, Keun Man Song3, Eun-Kyung Suh1, and Hyunsoo Kim1 (*)

1 School of Semiconductor and Chemical Engineering, Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Republic of Korea
2 Soft Innovative Materials Research Center, Korea Institute of Science and Technology, Jeonbuk 561-905, Republic of Korea
3 Korea Advanced Nano Fab Center, Suwon 443-700, Republic of Korea

DOI 10.1007/s12274-014-0624-7

Nano Research 2015, 8(4): 1327每1338

Address correspondence to hskim7@jbnu.ac.kr

The electrical characteristics of graphene每GaN Schottky diodes with excellent rectifying behavior are presented, i.e., Schottky barrier heights of 0.90 eV and 1.24 ㊣ 0.13 eV as determined by the thermionic emission and barrier inhomogeneity model.

    

Improving the electrochemical performance of Fe3O4 nanoparticles via a double protection strategy through carbon nanotube decoration and graphene networks

Shuliang Yang, Changyan Cao (*), Gen Li, Yongbin Sun, Peipei Huang, Fangfang Wei, and Weiguo Song (*)
 
Beijing National Laboratory for Molecular Sciences, Laboratory  of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

DOI 10.1007/s12274-014-0625-6

Nano Research 2015, 8(4): 1339每1347

Address correspondence to Changyan Cao, cycao@iccas.ac.cn; Weiguo Song, wsong@iccas.ac.cn

A double protection strategy for improving electrochemical properties of Fe3O4 nanoparticles through the use of decoration with multi-walled carbon nanotubes and reduced graphene oxides networks has been developed.

    

A density functional theory study of the tunable structure, magnetism and metal每insulator phase transition in VS2 monolayers induced by in-plane biaxial strain

Min Kan1,2,3, Bo Wang4, Young Hee Lee2,3 (*), and Qiang Sun1,5 (*)

1 Department of Materials Science and Engineering, Peking University, Beijing 100871, China
2 Center for Integrated Nanostructure Physics, Institute for Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
3 Department of Physics and Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea
4 School of Mathematical Sciences, Peking University, Beijing 100871, China
5 Center for Applied Physics and Technology, Peking University, Beijing 100871, China

DOI 10.1007/s12274-014-0626-5

Nano Research 2015, 8(4): 1348每1356

Address correspondence to Young Hee Lee, leeyoung@skku.edu; Qiang Sun, sunqiang@pku.edu.cn

Density functional theory calculations show that the phase transition of in a VS2 monolayer can be tuned by the in-plane biaxial strain, resulting in a metal每insulator transition and a further low spin每high spin magnetic transition.

    

Tunnel magnetoresistance with atomically thin two- dimensional hexagonal boron nitride barriers

Andr谷 Dankert1 (*), M. Venkata Kamalakar1, Abdul Wajid1, R. S. Patel2 (*), and Saroj P. Dash1 (*)
                                                                                                                                                                                                
1Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-41296, Göteborg, Sweden
2Department of Physics, Birla Institute of Technology and Science Pilani〞K K Birla Goa Campus, Zuarinagar-403726, Goa, India

DOI 10.1007/s12274-014-0627-4

Nano Research 2015, 8(4): 1357每1364

Address correspondence to Andr谷 Dankert, andre.dankert@chalmers.se; R. S. Patel, rsp@goa.bits-pilani.ac.in; Saroj P. Dash, saroj.dash@chalmers.se

We demonstrate spin-polarized electron tunneling through a monolayer h-BN barrier in magnetic junction and the observation of tunnel magnetoresistance at room temperature.

    

Nanostructuring gold wires as highly durable nanocatalysts for selective reduction of nitro compounds and azides with organosilanes

Huifang Guo1, Xiuling Yan3, Yun Zhi1, Zhiwen Li3, Cai Wu1, Chunliang Zhao1, Jing Wang1, Zhixin Yu4, Yi Ding2,3 (*), Wei He1 (*), and Yadong Li5

1 School of Medicine and Tsinghua每Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China 2 Institute for New Energy Materials and Low-Carbon Technologies, and School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China 3 School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China 4 Department of Petroleum Engineering, University of Stavanger, Stavanger 4036, Norway 5 Department of Chemistry, Tsinghua University, Beijing 100084, China

DOI 10.1007/s12274-015-0703-4

Nano Research 2015, 8(4): 1365每1372

Address correspondence to Yi Ding, yding@tjut.edu.cn; Wei He, whe@mail.tsinghua.edu.cn

Alloying and dealloying the surface of gold wires provide a general yet effective method to prepare highly durable Au nanocatalysts with mechanically robust core and high surface area nanoporous skin. Their potential as practically useful catalysts is showcased in the highly chemo-selective reduction of nitro compounds and azides using organosilanes as the reducing agents.

    

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