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

Journal Article · Mon Sep 15 04:00:00 EDT 2014 · AIP Advances

DOI:https://doi.org/10.1063/1.4895520· OSTI ID:22300247

Guo, B. L.; Liu, X. J.; Chen, Y. H. ^[1]

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1. National Laboratory of Solid State Microstructures, Photovoltaic Engineering Center, Nanjing University, Nanjing 210093 (China)

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.

• OSTI ID: 22300247
• Journal Information: AIP Advances, Journal Name: AIP Advances Journal Issue: 9 Vol. 4; ISSN AAIDBI; ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
CHELATING AGENTS
ELECTRICAL PROPERTIES
FABRICATION
MICROSTRUCTURE
OPTICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SOLAR CELLS
TEMPERATURE DEPENDENCE
THERMIONIC EMISSION
THIN FILMS
X-RAY DIFFRACTION