2015
DOI: 10.1021/cm504434q
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Coincident Site Epitaxy at the Junction of Au–Cu2ZnSnS4 Heteronanostructures

Abstract: Considering the chemistry of the formation and physics at interfaces, we report on the heterostructure of a promising new energy material, Au–Cu2ZnSnS4 (Au-CZTS), and investigate the impact of coupling on Au on improving both the photostability and the photoresponse behavior. We focus primarily on the fundamental issues involved in bringing together two dissimilar materials having different chemical and physical properties in a single building block where one is a multinary semiconductor nanomaterial and the o… Show more

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Cited by 56 publications
(82 citation statements)
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“…3 (C) and (D) show the TEM images of Ag (5nm)/WO 3-x NHSs. Similar type observation was found by Pradhan and co-workers for Au-ZnSe and Au-Cu 2 ZnSnS 4 heterostructures 49,50 . The higher contrast part is for metal NCs.…”
Section: Resultssupporting
confidence: 88%
“…3 (C) and (D) show the TEM images of Ag (5nm)/WO 3-x NHSs. Similar type observation was found by Pradhan and co-workers for Au-ZnSe and Au-Cu 2 ZnSnS 4 heterostructures 49,50 . The higher contrast part is for metal NCs.…”
Section: Resultssupporting
confidence: 88%
“…42,[48][49][50] Heterostructures of Cu 2 ZnSnS 4 (CZTS) and Au were recently reported to improve the photoresponse and -stability compared to pure CZTS multi-layered photodetectors. 51 Increasing the current in a semiconductor nanoparticle array by deposition of metallic domains seems intuitive. Anyhow, it is less clear how the metal domain size and thus the degree of coupling between the domains influences the dark and especially the photocurrents.…”
mentioning
confidence: 99%
“…This type of heteroepitaxy has been observed in other similar systems. 17,23 The effect of gold nanoparticle size…”
Section: Typical Structures Of Isolated Au-zno Hexagonal Nanocrystal mentioning
confidence: 99%