Optical and electrical properties study of sol-gel derived Cu2ZnSnS4 thin films for solar cells
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 stab...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2014-09-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4895520 |
| Summary: | 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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| ISSN: | 2158-3226 |