1. Solar frontier achieves world record thin-film solar cell efficiency of 22.9%;Yoshida;Sol Front News,2017
2. Solar cell efficiency tables (version 54);Green;Prog Photovoltaics Res Appl,2019
3. Yoshida, S. Solar frontier achieves world record thin-film solar cell efficiency of 23.35% [Internet]. Tokyo: Solar Frontier; 2019 Jan 17 [cited 2019 Jun 11]. Available from: https://www.solar-frontier.com/eng/news/2019/0117_press.html.
4. Understanding the cell-to-module efficiency gap in Cu(In,Ga)(S,Se)2 photovoltaics scale-up;Bermudez;Nat Energy,2018
5. Hutchins, M. NICE Solar Energy sets new world record for CIGS efficiency [Internet]. Berlin: pv magazine; 2019 Dec 4 [cited 2019 Jun 11]. Available from: https://www.pv-magazine.com/2019/12/04/nice-solar-energy-sets-new-world-record-for-cigs-efficiency/.