journal article·2021-07-27

Spatially Controlled Preparation of Layered Metallic–Semiconducting Metal Chalcogenide Heterostructures

Xiaoshan Wang, Qian Chen, Chuang Shen, Jie Dai, Chao Zhu, Jinyan Zhang, Zhiwei Wang, Qingsong Song, Lin Wang, Hai Li, Qiang Wang, Zheng Liu, Zhimin Luo, Xiao Huang, Wei Huang

ACS Nano· Volume 15· Issue 7
Publisher page

Abstract

Spatially controlled preparation of heterostructures composed of layered materials is important in achieving interesting properties. Although vapor-phased deposition methods can prepare vertical and lateral heterostructures, liquid-phased methods, which can enable scalable production and further solution processes, have shown limited controllability. Herein, we demonstrate by using wet chemical methods that metallic Sn0.5Mo0.5S2 nanosheets can be deposited epitaxially on the edges of semiconducting SnS2 nanoplates to form SnS2/Sn0.5Mo0.5S2 lateral heterostructures or coated on both the edges and basal surfaces of SnS2 to give SnS2@Sn0.5Mo0.5S2 core@shell heterostructures. They also showed good light-to-heat conversion ability due to the metallic property of Sn0.5Mo0.5S2. In particular, the core@shell heterostructure showed a higher photothermal conversion efficiency than the lateral counterpart, largely due to its randomly oriented and polycrystalline Sn0.5Mo0.5S2 layers with larger interfacing area for multiple internal light scattering.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: 2D Materials and Applications · Quantum Dots Synthesis And Properties · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China

Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211800, China

Key Laboratory for Organic Electronic & Information Displays (KLOEID) and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China

School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 640260, Singapore

School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China

Funding

Agency for Science, Technology and Research · Ministry of Education of the People's Republic of China · National Research Foundation Singapore · Government of Jiangsu Province · Nanjing University of Posts and Telecommunications · National Natural Science Foundation of China · Northwestern Polytechnical University · Natural Science Foundation of Shaanxi Province · Young 1000 Talents Global Recruitment Program of China · Department of Science & Technology of Shaanxi Province

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