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Title: Electronic properties of solution-processed Cu(In,Ga)(S,Se)2 solar cells using metal chalcogenides and amine-thiol solvent mixtures
Authors: Ulicna, Sona
Togay, Mustafa
Bliss, Martin
Tsai, Vincent
Wright, Lewis D.
Lowe, Jamie
Malkov, Andrei V.
Walls, Michael
Bowers, Jake W.
Keywords: Air-annealing
Amine-thiol solvent combination
CIGS
Solar cells
Solution-processing
Issue Date: 2018
Publisher: © IEEE
Citation: ULICNA, S. ... et al. 2018. Electronic properties of solution-processed Cu(In,Ga)(S,Se)2 solar cells using metal chalcogenides and amine-thiol solvent mixtures. Presented at the 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), Waikoloa, Hawaii, USA, 10-15 June 2018, pp.859-864.
Abstract: This work examines the effects of post-deposition air-annealing on the electronic properties of solution-processed heterojunction CIGS solar cells. The annealing in air of the CIGS/CdS interface was found to have positive effects on the device performance with an increase in all PV parameters even after annealing times as short as 5 min. A VOC increase of <; 130 mV was caused by the reduced surface and grain boundary recombination through passivation of surface Se deficiencies with oxygen atoms. Prolonged annealing causes charge redistribution and diffusion of mobile elements such as Cu and Cd deeper into the absorber bulk however, resulting in lower carrier density and deeper defects with increased annealing time. These were observed through capacitance-voltage profiling and admittance spectroscopy.
Description: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Version: Accepted for publication
DOI: 10.1109/pvsc.2018.8547821
URI: https://dspace.lboro.ac.uk/2134/36497
Publisher Link: https://doi.org/10.1109/pvsc.2018.8547821
ISBN: 9781538685297
Appears in Collections:Conference Papers and Presentations (Chemistry)
Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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