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Issue 40, 2015
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Crystal defect-mediated band-gap engineering: a new strategy for tuning the optical properties of Ag2Se quantum dots toward enhanced hydrogen evolution performance

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Abstract

Crystal defects have been introduced into inherently narrow-band-gap and non-toxic Ag2Se quantum dots (QDs) via a facile and efficient thermal vibration approach during synthesis and studied by using electron holography and geometric phase analysis techniques. These crystal defects consequently demonstrated a solid possibility for tuning the optical band-gaps of Ag2Se QDs, and thereby enhancing the visible-light-driven water splitting and hydrogen evolution performance of Ag2Se QD-sensitized TiO2 photocatalysts.

Graphical abstract: Crystal defect-mediated band-gap engineering: a new strategy for tuning the optical properties of Ag2Se quantum dots toward enhanced hydrogen evolution performance

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Publication details

The article was received on 03 Jul 2015, accepted on 28 Aug 2015 and first published on 31 Aug 2015


Article type: Communication
DOI: 10.1039/C5TA04978D
Citation: J. Mater. Chem. A, 2015,3, 20051-20055
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    Crystal defect-mediated band-gap engineering: a new strategy for tuning the optical properties of Ag2Se quantum dots toward enhanced hydrogen evolution performance

    Q. Cao, Y. Cheng, H. Bi, X. Zhao, K. Yuan, Q. Liu, Q. Li, M. Wang and R. Che, J. Mater. Chem. A, 2015, 3, 20051
    DOI: 10.1039/C5TA04978D

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