Improved Device Models of CZTSe: Nanolayer Ge solar cells with Quantum Efficiency

Sanghyun Lee, Kent J. Price, Edgardo Saucedo, Sergio Giraldo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We fabricated and characterized CZTSe: Nanolayer Ge (<10 nm) thin film solar cells to quantitatively demonstrate an exact device model of quantum efficiency for Ge doped CZTSe devices. The linear electric field model is developed used to fit the unique quantum efficiency as compared to empirical data at forward bias condition. This model is characterized with a consistent set of parameters from a series of measurements and literature. Using the analytical modeling method, the carrier collection profile in the absorber is calculated and closely fitted by developed mathematical expressions to identify the carrier dynamics during the quantum efficiency measurement.

Original languageEnglish
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
Pages3000-3002
Number of pages3
ISBN (Electronic)9781538685297
DOIs
StatePublished - Nov 26 2018
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: Jun 10 2018Jun 15 2018

Publication series

Name2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

Conference

Conference7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/TerritoryUnited States
CityWaikoloa Village
Period6/10/186/15/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

  • CZTSe
  • kesterite
  • modeling
  • quantum efficiency

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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