• DOI:10.1039/c5nr07008b
• Corpus ID: 205984583

A facile chemical-mechanical polishing lift-off transfer process toward large scale Cu(In,Ga)Se2 thin-film solar cells on arbitrary substrates.

@article{Tseng2016AFC,
  title={A facile chemical-mechanical polishing lift-off transfer process toward large scale Cu(In,Ga)Se2 thin-film solar cells on arbitrary substrates.},
  author={Kuan-Chun Tseng and Yu-Ting Yen and Stuart R. Thomas and Hung-Wei Tsai and Cheng-Hung Hsu and Wen-Chi Tsai and Chang-Hong Shen and Jia-Min Shieh and Zhiming M. Wang and Y. L. Chueh},
  journal={Nanoscale},
  year={2016},
  volume={8 9},
  pages={
          5181-8
        }
}

• Kuan-Chun Tseng, Yu-Ting Yen, +7 authors Y. Chueh
• Published 25 February 2016
• Chemistry, Engineering, Materials Science
• Nanoscale

The fabrication of Cu(In,Ga)Se2 (CIGS) solar cells on flexible substrates is a non-trivial task due to thermal and ion diffusion related issues. In order to circumvent these issues, we have developed a chemical-mechanical polishing lift-off (CMPL) transfer process, enabling the direct transfer of CIGS solar cells from conventional soda-lime glass (SLG) onto arbitrary flexible substrates up to 4 cm(2) in size. The structural and compositional nature of the pre- and post-transferred films is examined using electron microscopy, X-ray diffraction analysis, Raman and photoluminescence spectroscopy. We demonstrate the fabrication of solar cells on a range of flexible substrates while being able to maintain 75% cell efficiency (η) when compared to pre-transferred solar cells. The results obtained in this work suggest that our transfer process offers a highly promising approach toward large scale fabrication of CIGS-based solar cells on a wide variety of flexible substrates, suitable for use in the large scale CIGS photovoltaic industry.