Volume 6

Issue 07,2013

(8 articles)

Colin Preston1, Yunlu Xu2,3, Xiaogang Han1, Jeremy N. Munday2,3, and Liangbing Hu1 ()

It is found that transparent conducting films composed of silver nanowires with large diameters exhibit greater optical haze than films with smaller diameters, even when both films exhibit nearly equal transparency and sheet resistance. This contradicts the contemporary figure of merit because films with the greater haze are better for solar cell applications.
2013, 6(7): 461–468

Caiyun Nan, Jun Lu, Lihong Li, Lingling Li, Qing Peng (), and Yadong Li ()

Six LiFePO4 nanocrystals with different size and shape have been successfully synthesized in ethylene glycol by controlling the sequence of addition and ratio of the reagents. The most promising LiFePO4 nanocrystals have either predominantly {010} face exposure or high specific area with little iron(II) oxidation.
2013, 6(7): 469–477

Qian Zhang1, Xiangjian Wan1, Fei Xing2, Lu Huang1, Guankui Long1, Ningbo Yi1, Wang Ni1, Zhibo Liu2, Jianguo Tian2, and Yongsheng Chen1 ()

Graphene mesh electrodes (GMEs) have been prepared by the standard industrial photolithography and O2 plasma etching process using graphene solutions. Organic photovoltaic devices based on the GMEs with poly-(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester (P3HT/PC61BM) as the active layer have been fabricated and exhibit a power conversion efficiency of 2.04%, the highest efficiency for solution-processed graphene transparent electrode- based solar cells reported to date.
2013, 6(7): 478–484

Mario Lanza1, Yan Wang2, Teng Gao3, Albin Bayerl4, Marc Porti4, Montserrat Nafria4, Yangbo Zhou5, Guangyin Jing6, Yanfeng Zhang3, Zhongfan Liu3, Dapeng Yu5, and Huiling
Duan1 ()

We have examined in situ the local oxidation of graphene-coated materials in air at room temperature for long periods of time. The onset of oxidation takes place at the graphene domain boundaries, and it propagates to the surrounding areas, which dramatically reduces the morphological, electrical, mechanical, and frictional performance of graphene-based devices.
2013, 6(7): 485–495

Fang Xie1 (), Jing S. Pang1, Anthony Centeno2, Mary P. Ryan1, D. Jason Riley1, and Neil M. Alford1

Two orders of fluorescence enhancement were observed for near- infrared (NIR) dyes by nano-engineering of Ag triangular arrays. Such large area arrays with tunable plasmonic response are excellent candidates for practical sensing applications with high sensitivity and reproducibility.
2013, 6(7): 496–510

Christopher C. M. Neumann, Eduardo Laborda, Kristina Tschulik, Kristopher R. Ward, and Richard G. Compton ()

Electrocatalytic activity for oxygen reduction reaction at neutral pH of 18-nm citrate-capped silver nanoparticles supported on glassy carbon is investigated.
2013, 6(7): 511–524

Bin Liu1,2, Xianfu Wang2, Boyang Liu2, Qiufan Wang2, Dongsheng Tan2, Weifeng Song2, Xiaojuan Hou2, Di Chen2 (), and Guozhen Shen1 ()

We demonstrate high-performance lithium-ion batteries based on ZnCo2O4-urchins-on-carbon-fibers anodes. Our novel design provides an attractive strategy toward progress in next-generation electrochemical devices with large energy/power density and highly flexible/wearable properties.
2013, 6(7): 525–534

Shibo Liang1, Zhiyong Zhang1 (), Tian Pei1, Ruoming Li2, Yan Li2, and Lianmao Peng1 ()

With proper Al2O3 passivation, carbon nanotube n-type FETs display reliable performance in air. Passivation layers reduce gate hysteresis to less than 0.1 V, and key device performance merits remain unchanged even after exposure to air for 146 days. Power-on tests, which evaluate the potential for practical applications, prove that the devices can still work in air for at least 10 h and generate perfect output characteristics afterwards.
2013, 6(7): 535–545