Innovative fabrication of low-cost kesterite solar cells for distributed energy applications

Xinya Xu, Yongtao Qu, Martial Duchamp, Utkur Mirsaidov, Stephen Campbell, Vincent Barrioz, Guillaume Zoppi, Neil S. Beattie

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

Abstract

We present the results of three novel approaches to the fabrication of kesterite solar cells from scalable, Cu2ZnSnS4 (CZTS) nanoparticle inks. Firstly, CZTS nanoparticles are annealed in a Se-rich atmosphere inside a transmission electron microscope (TEM). This allows observation of the thin film PV absorber formation in real-time and provides the new insight that chalcogen atom exchange and grain growth occur in different temperature regimes. Secondly, we demonstrate an approach to alkali doping Cu2ZnSn(S,Se)4 PV absorbers on flexible Mo-foil substrates that is compatible with high volume manufacturing. Adding NaF directly to the CZTS nanoparticle ink promotes grain growth and improves the device efficiency to 4.4%. Lastly, In2S3/CdS dual buffer layers are investigate to reduce the usage of Cd and result in device efficiency of 7.8% on a glass substrate.

Original languageEnglish
Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2486-2489
Number of pages4
ISBN (Electronic)9781728161150
DOIs
Publication statusPublished - 15 Jun 2020
Event47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada
Duration: 15 Jun 202021 Aug 2020

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
Volume2020-June
ISSN (Print)0160-8371

Conference

Conference47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Country/TerritoryCanada
CityCalgary
Period15/06/2021/08/20

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