How to Achieve Efficiencies beyond 22.1% for CdTe-Based Thin-Film Solar Cells

** Article version: VoR ** From MDPI via Jisc Publications Router ** Licence for VoR version of this article: https://creativecommons.org/licenses/by/4.0/ ** Peer reviewed: TRUE ** Acknowledgements: Acknowledgments: The main author would like to thank and acknowledge the contributions made by C. J. Blomfield, S. M. McGregor, A. P. Samantilleke, N. B. Chaure, Jayne Wellings, G. Muftah, D. G. Diso, A. R. Weerasinghe, P. A. Bingham, O. K. Echendu, F. Fauzi, H. I. Salim, Fijay Fausi, N. A. Abdul-Manaf, O. I. Olusola, M. L. Madugu and A. A. Ojo. The collaborating teams in Italy (Nicola Romeo and Allesio Bosio) and in the USA (Thad Druffle, Ruvini Dharmadasa, Gamini Sumanasekera and Jacek Jasinsky) are gratefully acknowledged for their contributions through PL, other experimental work and discussions on new findings. The author would also like to thank J. S. Roberts, G. Hill, A. Tiwari, D.J.L. Brémaud, H. Reehal, K. Mahanama, M. Grätzel and K. Emery for growing materials, fabricating devices and arranging independent device measurements for graded band gap devices. Although a limited number of references have been cited in this paper, the authors wishes to acknowledge and thank many scientists who contributed to this area of research over the past few decades. Gareth Roberts (late), Mike Petty, Robin Williams and Emeric Rhoderick are gratefully acknowledged for their guidance during the main author’s early stage of scientific research to develop in this field. **Journal IDs: eissn 1996-1073 **Article IDs: publisher-id: energies-15-09510 **History: published_online 15-12-2022; accepted 12-12-2022; collection 12-2022; submitted 04-11-2022