Optimization of charge-carrier generation in amorphous-silicon thin-film tandem solar cell backed by two-dimensional metallic surface-relief grating

Benjamin J. Civiletti, Tom H. Anderson, Faiz Ahmad, Peter B. Monk, Akhlesh Lakhtakia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The rigorous coupled-wave approach was implemented in a three-dimensional setting to calculate the chargecarrier-generation rate in a thin-film solar cell with multiple amorphous-silicon p-i-n junctions. The solar cell comprised a front antireflection window; three electrically isolated p-i-n junctions in tandem; and a periodically corrugated silver back-reflector with hillock-shaped corrugations arranged on a hexagonal lattice. The differential evolution algorithm (DEA) was used to maximize the charge-carrier-generation rate over a set of selected optical and electrical parameters. This optimization exercise minimized the bandgap of the topmost i-layer but all other parameters turned out to be uninfluential. More importantly, the exercise led to a configuration that would very likely render the solar cell inefficient. Therefore, another optimization exercise was conducted to maximize power density. The resulting configuration was optimal over all parameters.

Original languageEnglish (US)
Title of host publicationNext Generation Technologies for Solar Energy Conversion VIII
EditorsGavin Conibeer, Oleg V. Sulima
PublisherSPIE
ISBN (Electronic)9781510611931
DOIs
StatePublished - Jan 1 2017
EventNext Generation Technologies for Solar Energy Conversion VIII 2017 - San Diego, United States
Duration: Aug 8 2017Aug 9 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10368
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherNext Generation Technologies for Solar Energy Conversion VIII 2017
CountryUnited States
CitySan Diego
Period8/8/178/9/17

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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    Civiletti, B. J., Anderson, T. H., Ahmad, F., Monk, P. B., & Lakhtakia, A. (2017). Optimization of charge-carrier generation in amorphous-silicon thin-film tandem solar cell backed by two-dimensional metallic surface-relief grating. In G. Conibeer, & O. V. Sulima (Eds.), Next Generation Technologies for Solar Energy Conversion VIII [1036809] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10368). SPIE. https://doi.org/10.1117/12.2274077