Fabrication of CZTS-based thin film solar cells using all-solution processing and pulsed light crystallization

Carson Munn; Shivan Haran; Ilwoo Seok

doi:10.1117/12.2012065

9 April 2013 Fabrication of CZTS-based thin film solar cells using all-solution processing and pulsed light crystallization

Carson Munn, Shivan Haran, Ilwoo Seok

Author Affiliations +

Proceedings Volume 8691, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013; 86911A (2013) https://doi.org/10.1117/12.2012065
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

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.

Citation Download Citation

Carson Munn, Shivan Haran, and Ilwoo Seok "Fabrication of CZTS-based thin film solar cells using all-solution processing and pulsed light crystallization", Proc. SPIE 8691, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013, 86911A (9 April 2013); https://doi.org/10.1117/12.2012065

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