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Hydrazine-free solution-deposited CuIn(S,Se)2 solar cells by spray deposition of metal chalcogenides

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posted on 2016-05-19, 10:17 authored by Nayia Arnou, Maikel F.A.M. van Hest, Carl Cooper, Andrei MalkovAndrei Malkov, Michael WallsMichael Walls, Jake BowersJake Bowers
Solution processing of semiconductors, such as CuInSe2 and its alloys (CIGS), can significantly reduce the manufacturing costs of thin film solar cells. Despite the recent success of solution deposition approaches for CIGS, toxic reagents such as hydrazine are usually involved, which introduce health and safety concerns. Here, we present a simple and safer methodology for the preparation of high-quality CuIn(S, Se)2 absorbers from metal sulfide solutions in a diamine/dithiol mixture. The solutions are sprayed in air, using a chromatography atomizer, followed by a postdeposition selenization step. Two different selenization methods are explored resulting in power conversion efficiencies of up to 8%.

Funding

Authors P.A, C.S.C, J.M.W., and J.W.B. are grateful for funding from EPSRC Supergen SuperSolar Hub (EP/J017361/1); EPSRC PVTEAM (EP/L017792/1) and EPRSRC grant EP/ N508457/1 to support this project. P.A. also thanks the SuperSolar Hub for funding a 3 month secondment at the National Renewable Energy Laboratory in Colorado, USA.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Published in

ACS Applied Materials & Interfaces

Citation

ARNOU, P. ... et al, 2016. Hydrazine-free solution-deposited CuIn(S,Se)2 solar cells by spray deposition of metal chalcogenides. ACS Applied Materials & Interfaces, 8 (19), pp. 11893–11897.

Publisher

American Chemical Society

Version

  • VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Publication date

2016

Notes

This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.

ISSN

1944-8244

eISSN

1944-8252

Language

  • en

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