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Nano Research

Article Title

Heterostructures in two-dimensional colloidal metal chalcogenides: Synthetic fundamentals and applications

Authors

Yuho Min, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Eunmi Im, Dongnam Regional Division, Korea Institute of Industrial Technology, Busan, 46938, Republic of Korea
Geon-Tae Hwang, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Jong-Woo Kim, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Cheol-Woo Ahn, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Jong-Jin Choi, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Byung-Dong Hahn, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Joon-Hwan Choi, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Woon-Ha Yoon, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Dong-Soo Park, Functional Ceramics Department, Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, 51508, Republic of Korea
Dong Choon Hyun, Department of Polymer Science and Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea
Geon Dae Moon, Dongnam Regional Division, Korea Institute of Industrial Technology, Busan, 46938, Republic of Korea

Keywords

metal chalcogenide, heterostructure, anisotropic nanomaterials, two-dimensional (2D) nanomaterials, solution-based synthesis

Abstract

As a new class of two-dimensional materials, two-dimensional (2D) heterostructures constructed from metal chalcogenides (MCs) have been gaining tremendous attention due to their unprecedented physical and chemical phenomena, mainly originated from their distinct structural features such as composition, architecture type, spatial arrangement of each component, crystal structure, exposed facet and interface, dimensionality in their heterostructures. Towards the realization of practical applications, synthetic approaches need a rational design with a variety of architecture types including laterally-combined, vertically-aligned, and conformally-coated 2D MC heterostructures. Among various synthetic routes, solution-based synthesis is thought of as an alternative to fabrication through high-cost setups since it can control those structural features in a cheap fashion. This review presents recent progress on solution-based synthesis to produce various 2D MC heterostructures with a focus on the synthetic fundamentals in terms of thermodynamic and kinetic aspects related to the growth mechanism. Four different synthetic approaches are reviewed: seeded growth, cation exchange reaction, colloidal atomic layer deposition, direct synthesis including one-step process and modified electrochemical method. We also provide some representative applications of 2D MC heterostructures and their hybrid composites in various fields including optoelectronics, thermoelectrics, catalysis, and battery. Finally, we offer an insight into challenges and future directions in a synthetic improvement of 2D MC heterostructures.

Graphical Abstract

Publisher

Tsinghua University Press

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