Modulated Binary-Ternary Dual Semiconductor Heterostructures

Angewandte Chemie
Gyanaranjan PrustyNarayan Pradhan

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 Ag2 Se 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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Citations

Oct 5, 2016·ACS Applied Materials & Interfaces·Tsukasa TorimotoTamaki Shibayama
May 10, 2017·Journal of the American Chemical Society·Jiwoong YangTaeghwan Hyeon
Jul 1, 2017·Inorganic Chemistry·Li ZhangQing Yang
Mar 5, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Sweta GahlotShashank Mishra
Mar 25, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Sumana PaulSubodh Kumar De

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