Jinshui Miao1 (✉) and Chuan Wang2 (✉)

Impact ionization, which can achieve carrier multiplication, is a promising strategy to design two-dimensional (2D) material-based photodetectors with high gain. In this review, a host of emerging avalanche photodetectors based on 2D materials and their van der Waals heterostructures, and their potential applications in the field of photon-counting technologies are detailed.
Published: 13 May 2020

Ting Xu1, Shaojing Zhao1, Changwei Lin2 (✉), Xiuli Zheng3 (✉), and Minhuan Lan1 (✉)

Inorganic nanomaterials are used as carriers for molecular sonosensitizers or directly as sonosensitizers for sonodynamic therapy.
Published: 25 May 2020

Zhong-Liu Liu1,§, Zhi-Li Zhu1,§, Xu Wu2,§, Jin-An Shi1, Wu Zhou1, Li-Wei Liu2, Ye-Liang Wang2,1,3 (✉), and Hong-Jun Gao1,3 (✉)

By inducing confined conditions with a precoating of graphene, the selenization of Pt(111) can be suppressed to form a Se intercalated layer, instead of a PtSe2 monolayer, which provides an approach for controllable fabrication of PtSe2 in patterns.
Published: 16 June 2020

Yumei Ren1,2,3, Chengbing Yu1 (*), Zhonghui Chen3,4 (*), and Yuxi Xu3 (*)

The recent research progress in the preparation methods of twodimensional (2D) polymer nanosheets, mainly including interfacial polymerization and solution polymerization has been summarized. The structure–property relationships of various 2D polymers are thoroughly discussed. Their applications in the fields of energy storage and conversion, and the future perspectives have also been presented.
Published: 25 July 2020

Kaian Sun1,2, Lei Zhao1, Lingyou Zeng1, Shoujie Liu2, Houyu Zhu3, Yanpeng Li1, Zheng Chen2, Zewen Zhuang2, Zhaoling Li4, Zhi Liu1, Dongwei Cao3, Jinchong Zhao1, Yunqi Liu1 (✉), Yuan Pan1 (✉), and Chen Chen2 (✉)

A novel coordination environment inheriting strategy was developed for the synthesis of low-coordination Ni2+ octahedra atomic interface. Advanced spectroscopic techniques and theoretical calculations reveal that the self-matching electron delocalization and localization state at the bifunctional active sites L-Ni-8 enables an ideal reaction environment at both cathode and anode. To improve the efficiency of using the self-modification reaction environment at L-Ni-8, all of the structural features from atomic-scale to macro-scale are integrated together to drive superior overall water splitting performance at high current density.
Published: 2 March 2020
Published: 10 July 2020

Wancai Li1, Jiaqi Ma1, Xue Cheng2, and Dehui Li1,2 (✉)

We observed the photoluminescence quantum yield of two-dimensional (2D) perovskite thin microplates has been enhanced 28 times by graphene encapsulation. The enhancement mechanism is the reduced quantum confined Stark effect due to the reduced surface depletion field, which leads to the enhanced radiative recombination efficiency.
Published: 13 May 2020

Fei Hui1, Chong Li2, Yanhui Chen1, Chunhui Wang1, Jingping Huang1, Ang Li1 (✉),Wei Li1, Jin Zou3, and Xiaodong Han1 (✉)

Aberration-corrected environmental transmission electron microscopy (TEM) was used to investigate the atomic-scale microstructural evolution in situ during the reaction between H2 and Au/WO2.7 compound.
Published: 8 May 2020

Daiyong Chao1,2, Jinxing Chen2, Qing Dong1,2, Weiwei Wu2, Desheng Qi1, and Shaojun Dong1,2 (✉)

Highly-efficient green emissive CDs (m-CDs) with the absolute quantum yield of 71.7% in water are prepared through a facile solvothermal method. Owing to the unique optical behavior, the m-CDs were used as a fluorescent probe for water quality identification, glucose detection, and two environment-friendly starch-based solidstate fluorescence materials (powder and film).
Published: 03 May 2020

Yapeng Zheng1,2, Tao Yang1, Zhi Fang1,2, Minghui Shang2, Zuotai Zhang3, Jack Yang4,5, Jiaxin Fan4, Weiyou Yang2 (*), Xinmei Hou1 (*), and Tom Wu4 (*)
1 Collaborative Innovation Center of Ste

Tunable growth of all-inorganic perovskite nanorings with dual compositional phases of CsPbBr3 and CsPb2Br5 was reported, which was driven by the axial stress resulted from the lattice mismatch during the transformation of CsPbBr3 to CsPb2Br5.
Published: 20 July 2020