Modulated Binary–Ternary Dual Semiconductor Heterostructures |
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| Authors: | Gyanaranjan Prusty Amit K Guria Indranil Mondal Anirban Dutta Dr Ujjwal Pal Dr Narayan Pradhan |
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| Institution: | 1. Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata, India;2. Chemistry and Biomimetics Group, CSIR-Central Mechanical Engineering Research Institute, Durgapur-, India;3. http://iacs.res.in/matsc/msnp/ |
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| Abstract: | A generic modular synthetic strategy for the fabrication of a series of binary‐ternary group II‐VI and group I‐III‐VI coupled semiconductor nano‐heterostructures is reported. Using Ag2Se nanocrystals first as a catalyst and then as sacrificial seeds, four dual semiconductor heterostructures were designed with similar shapes: CdSe‐AgInSe2, CdSe‐AgGaSe2, ZnSe‐AgInSe2, and ZnSe‐AgGaSe2. Among these, dispersive type‐II heterostructures are further explored for photocatalytic hydrogen evolution from water and these are observed to be superior catalysts than the binary or ternary semi‐conductors. Details of the chemistry of this modular synthesis have been studied and the photophysical processes involved in catalysis are investigated. |
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| Keywords: | binary– ternary heterostructures photocatalyst tadpoles |
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