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Title: Optical and electrical properties study of sol-gel derived Cu{sub 2}ZnSnS{sub 4} thin films for solar cells

The fabrication of environmental-friendly Cu{sub 2}ZnSnS{sub 4} (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.
Authors:
; ;  [1] ;  [2] ;  [1] ;  [3]
  1. National Laboratory of Solid State Microstructures, College of Engineering and Applied Science, Nanjing University, Nanjing 210093 (China)
  2. National Laboratory of Solid State Microstructures, Photovoltaic Engineering Center, Nanjing University, Nanjing 210093 (China)
  3. (China)
Publication Date:
OSTI Identifier:
22300247
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 9; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANNEALING; CHELATING AGENTS; ELECTRICAL PROPERTIES; FABRICATION; MICROSTRUCTURE; OPTICAL PROPERTIES; SCANNING ELECTRON MICROSCOPY; SOLAR CELLS; SOL-GEL PROCESS; TEMPERATURE DEPENDENCE; THERMIONIC EMISSION; THIN FILMS; X-RAY DIFFRACTION