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Proceedings Paper

Fabrication of CZTS-based thin film solar cells using all-solution processing and pulsed light crystallization
Author(s): Carson Munn; Shivan Haran; Ilwoo Seok
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Paper Abstract

Solar cells can be produced using thin film based photovoltaic materials; these are highly efficient with respect to their optical properties and manufacturing cost. The prospective thin film solar cells are composed of Copper, Zinc, Tin, and Sulfide, or ‘CZTS’, this contains chemicals, which are both earth-abundant and non-toxic. The all-solution based process is investigated which is on a single-step electro-chemistry deposition that provides all constituents from the same electrolyte. This investigation was successful in our research group with a high degree of success and a photo-thermal energy driven sintering process that forms a CZTS material from the as-deposited chemicals was added. This enables the as-deposited chemicals to be covalently bonded and crystallized without using a costly vacuum process. In post-heat treatment, a homemade intense pulsed lighting (IPL) system was utilized for rapid thermal annealing. The successful deposition of the CZTS thin film was then evaluated and analyzed using cyclic voltammetry (CV), SEM/EDAX, and XRD. It has been concluded that photovoltaic thin film fabrication is truly comparable to the conventional deposition and annealing methods in terms of photovoltaic efficiency and cost-effectiveness.

Paper Details

Date Published: 9 April 2013
PDF: 6 pages
Proc. SPIE 8691, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013, 86911A (9 April 2013); doi: 10.1117/12.2012065
Show Author Affiliations
Carson Munn, Arkansas State Univ. (United States)
Shivan Haran, Arkansas State Univ. (United States)
Ilwoo Seok, Arkansas State Univ. (United States)

Published in SPIE Proceedings Vol. 8691:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013
Vijay K. Varadan, Editor(s)

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