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2024 17.2% Efficient CdSexTe1−x solar cell with (InxGa1−x)2O3 emitter 080601_1_5.0193628.pdf (1.9 MB)

17.2% efficient CdSexTe1−x solar cell with (InxGa1−x)2O3 emitter on lightweight and flexible glass

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journal contribution
posted on 2024-02-28, 11:08 authored by Manoj K Jamarkattel, Ali AbbasAli Abbas, Xavier Mathew, Sabin Neupane, Ebin Bastola, Deng-Bing Li, Samuel Seibert, Aesha P Patel, Zhaoning Song, Xiaolei LiuXiaolei Liu, Michael WallsMichael Walls, Sean M Garner, Adam B Phillips, Randy J Ellingson, Yanfa Yan, Michael J Heben
High-efficiency, lightweight, and flexible solar cells are sought for a variety of applications particularly when high power density and flexible form factors are desired. Development of solar cells on flexible substrates may also offer production advantages in roll-to-roll or sheet-to-sheet processes. Here, we report device efficiencies of 17.2% and 14.6%, under AM1.5G and AM0 irradiances, respectively, for a flexible, lightweight, CdTe-based solar cell. To advance the efficiency relative to the highest previously reported AM1.5G value of 16.4%, we used an indium gallium oxide (IGO) emitter layer on a cadmium stannate (CTO) transparent conductor, which was deposited on 100-μm thick Corning® Willow® Glass. A sputtered CdSe layer was employed to incorporate Se into a CdTe absorber that was deposited by close-space sublimation, and CuSCN was used as a hole transport layer between the CdTe and the back metal electrode. The IGO and CTO layers remained intact during the high temperature film processing as seen in cross-sectional imaging and elemental mapping. This device configuration offers great promise for building-integrated photovoltaics, space applications, and higher rate manufacturing.

Funding

Doped emitters to unlock lowest cost solar electricity

Engineering and Physical Sciences Research Council

Find out more...

U.S. DOE's Office of Energy Efficiency and Renewable Energy (EERE) under Solar Energy Technologies Office (SETO) Agreement No. DE-EE0008974, through the Alliance for Sustainable Energy, LLC, Managing and Operating Contractor for the National Renewable Energy Laboratory for the U.S. Department of Energy, under Award No. 37989, and Air Force Research Laboratory under Agreement Nos. FA9453-19-C-1002 and FA9453-21-C-0056

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Published in

Applied Physics Letters

Volume

124

Issue

8

Publisher

AIP Publishing

Version

  • VoR (Version of Record)

Rights holder

© Author(s)

Publisher statement

All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Acceptance date

2024-01-30

Publication date

2024-02-20

Copyright date

2024

ISSN

0003-6951

eISSN

1077-3118

Language

  • en

Depositor

Prof Michael Walls. Deposit date: 27 February 2024

Article number

080601

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