@inproceedings{639a31c42e204eb6990823d478941b08,
title = "Optoelectronically optimized colored thin-film CZTSSe solar cells",
abstract = "Rooftop solar cells may become more acceptable if they are colored, e.g., red or bluish green, which requires that a certain part of the incoming solar spectrum be reflected. We implemented and optimized an optoelectronic model for Cu2ZnSn(SζSe1-ζ)4 (CZTSSe) solar cells containing (i) a conventional 2200-nm-thick CZTSSe layer with homogeneous bandgap, or (ii) an ultrathin CZTSSe layer with optoelectronically optimized sinusoidally nonhomogeneous bandgap, or (iii) a CZTSSe layer with optoelectronically optimized linearly nonhomogeneous bandgap. Either complete or partial rejection of either red or bluish green photons was incorporated in the model. Calculations show that on average, the efficiency of a typical solar cell will be reduced by about 9% if 50% red photons are reflected or by about 13% if 50% blue-green photons are reflected. The efficiency reduction increases to about 18% if all red photons are reflected or about 26% if all blue-green photons are reflected.",
author = "Faiz Ahmad and Anderson, {Tom H.} and Torben Lenau and Akhlesh Lakhtakia",
note = "Publisher Copyright: Copyright {\textcopyright} 2019 SPIE.; International Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019, TFE3S 2019 ; Conference date: 24-06-2019 Through 26-06-2019",
year = "2019",
doi = "10.1117/12.2534592",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Partha Banerjee and Karl Gudmundsson and Akhlesh Lakhtakia and Guru Subramanyam",
booktitle = "International Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019",
address = "United States",
}