Double-absorber thin-film solar cell with 34% efficiency
Applied Physics
2020-08-04 v1
Abstract
Power-conversion efficiency is a critical factor for the wider adoption of solar-cell modules. Thin-film solar cells are cheap and easy to manufacture, but their efficiencies are low compared to crystalline-silicon solar cells and need to be improved. A thin-film solar cell with two absorber layers (instead of only one), with bandgap energy graded in both, can capture solar photons in a wider spectral range. With a 300-nm-thick CIGS~absorber layer and an 870-nm-thick CZTSSe~absorber layer, an efficiency of is predicted by a detailed optoelectronic model, provided that the grading of bandgap energy is optimal in both absorber layers.
Cite
@article{arxiv.2006.06454,
title = {Double-absorber thin-film solar cell with 34% efficiency},
author = {Faiz Ahamd and Akhlesh Lakhtakia and Peter B. Monk},
journal= {arXiv preprint arXiv:2006.06454},
year = {2020}
}
Comments
4 pages, 3 figures