Optical and electrical properties study of sol-gel derived Cu2ZnSnS4 thin films for solar cells | Zendy

B. L. Guo | Zendy; Y. H. Chen | Zendy; Xuehui Liu | Zendy; WaiChing Liu | Zendy; A. D. Li | Zendy

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Optical and electrical properties study of sol-gel derived Cu2ZnSnS4 thin films for solar cells

Author(s) -

B. L. Guo,

Y. H. Chen,

Xuehui Liu,

WaiChing Liu,

A. D. Li

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4895520

Subject(s) - czts , kesterite , materials science , annealing (glass) , thin film , raman spectroscopy , microstructure , chemical engineering , fabrication , nanotechnology , optoelectronics , composite material , optics , medicine , physics , alternative medicine , engineering , pathology

The fabrication of environmental-friendly Cu2ZnSnS4 (CZTS) thin films with pure kesterite phase is always a challenge to researchers in the field of solar cells. We introduce a simple non-vacuum sol-gel method to fabricate kesterite CZTS films. Ethylenediamine is used as the chelating agent and stabilizer and plays an important role in preparing stable precursor. X-ray diffraction, Raman and scanning electron microscopy studies suggest that the microstructure and optical properties of CZTS films depend strongly on annealing temperatures. The temperature dependence of conductivity of 500 °C annealed CZTS film shows that the Mott law dominates in the low temperature region and thermionic emission is predominant at high temperatures

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