Journal article
Polyacrylic Acid Assisted Synthesis of Cu2ZnSnS4 by Hydrothermal Method
Science of Advanced Materials, Vol.6(7), pp.1467-1474
2014
Abstract
Pure phase Cu2ZnSnS4 (CZTS) nanoparticles were successfully synthesized via polyacrylic acid (PAA) assisted one-pot hydrothermal route. The morphology, crystal structure, composition and optical properties as well as the photoactivity of the as-synthesized CZTS nanoparticles were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectrometer, UV-visible absorption spectroscopy and photoelectrochemical measurement. The influence of various synthetic conditions, such as the reaction temperature, reaction duration and the amount of PAA in the precursor solution on the formation of CZTS compound was systematically investigated. The results have shown that the crystal phase, morphology and particle size of CZTS can be tailored by controlling the reaction conditions. The formation mechanism of CZTS in the hydrothermal reaction has been proposed based on the investigation of time-dependent phase evolution of CZTS which showed that metal sulfides (e. g., Cu2S, SnS2 and ZnS) were formed firstly during the hydrothermal reaction before forming CZTS compound through nucleation. The band gap of the as-synthesized CZTS nanoparticles is 1.49 eV. The thin film electrode based on the synthesized CZTS nanoparticles in a three-electrode photoelectrochemical cell generated pronounced photocurrent under illumination provided by a red light-emitting diode (LED, 627 nm), indicating the photoactivity of the semiconductor material.
Details
- Title
- Polyacrylic Acid Assisted Synthesis of Cu2ZnSnS4 by Hydrothermal Method
- Authors
- Vincent Tiing Tiong (Author) - Queensland University of TechnologyTubshin Hreid (Author) - Queensland University of TechnologyGeoffrey Will (Author) - Queensland University of TechnologyJohn Bell (Author) - Queensland University of TechnologyHongxia Wang (Author) - Queensland University of Technology
- Publication details
- Science of Advanced Materials, Vol.6(7), pp.1467-1474
- Publisher
- American Scientific Publishers
- DOI
- 10.1166/sam.2014.1824
- ISSN
- 1947-2943
- Grant note
- Australian Research Council FT120100674
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99737996302621
- Output Type
- Journal article
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- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
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Source: InCites