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Monodisperse AgSbS 2 Nanocrystals: Size‐Control Strategy, Large‐Scale Synthesis, and Photoelectrochemistry
Author(s) -
Zhou Bin,
Li Mingrun,
Wu Yihui,
Yang Chi,
Zhang WenHua,
Li Can
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201501000
Subject(s) - photocurrent , nanocrystal , photoelectrochemistry , dispersity , materials science , nanotechnology , electrode , electrochemistry , optoelectronics , chemistry , polymer chemistry
We report an efficient approach to the synthesis of AgSbS 2 nanocrystals (NCs) by colloidal chemistry. The size of the AgSbS 2 NCs can be tuned from 5.3 to 58.3 nm with narrow size distributions by selection of appropriate precursors and fine control of the experimental conditions. Over 15 g of high‐quality AgSbS 2 NCs can be obtained from one single reaction, indicative of the up‐scalability of the present synthesis. The resulting NCs display strong absorptions in the visible‐to‐NIR range and exceptional air stability. The photoelectrochemical measurements indicate that, although the pristine AgSbS 2 NC electrodes generate a cathodic photocurrent with a relatively small photocurrent density and poor stability, both of them can be significantly improved subject to CdS surface modification, showing promise in solar energy conversion applications.