Printable carbon-free CIGS thin films for solar cell applications
- Printable carbon-free CIGS thin films for solar cell applications
- 박세진; 이은주; 오민규; 민병권
- CIGS; printable
- Issue Date
- 2011 한국광과학회
- CuInxGa1-x(SeyS1-y)2 (CIGS) has been considered to one of the most promising materials for solar cell applications due to its high absorption coefficient, appropriate band-gap, and long-term stability. The obstacles of the current CIGS thin film solar cells for commercial applications may be relatively difficult fabrication procedure and high processing costs related with vacuum based techniques. Herein, we suggest a simpler and lower cost synthetic method of CIGS thin film by applying a paste coating methode. In this method the paste containing Cu, In, Ga precursor mixtures was firstly prepared followed by being printed on conducting glass substrates and then annealing in H2S/N2 and/or Se vapor environment. With this method we applied CIGS thin films to substrate type solar cell architectures using Mo coated soda-lime glasses. A solar cell device with this film showed current-voltage characteristics of Jsc = 21.0 mA/cm2, Voc = 451 mV, FF = 0.473, and η= 4.48% at standard conditions.
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