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Title: Rapid thermal annealed Molybdenum back contact for Cu{sub 2}ZnSnS{sub 4} thin film solar cells

In this work, an industrially viable manufacturing process—rapid thermal annealing (RTA) of Molybdenum back contact is proposed and investigated to improve the performance of sputtered Cu{sub 2}ZnSnS{sub 4} (CZTS) solar cells. The RTA process was found to facilitate Na diffusion from soda lime glass to Mo as well as CZTS and improve the crystallinity of the Mo film. Consequently, the surface morphology of the subsequently deposited CZTS absorbers is improved, which results in significant enhancement of open circuit voltage, short-circuit current density, fill factor, and conversion efficiency.
Authors:
; ; ; ; ; ; ; ;  [1]
  1. School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, New South Wales 2052 (Australia)
Publication Date:
OSTI Identifier:
22398804
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANNEALING; COPPER COMPOUNDS; CURRENT DENSITY; DEPOSITS; DIFFUSION; DIRECT ENERGY CONVERSION; ELECTRIC POTENTIAL; ELECTRICAL FAULTS; FILL FACTORS; GLASS; MOLYBDENUM; MORPHOLOGY; SODIUM CARBONATES; SOLAR CELLS; SPUTTERING; SURFACES; THIN FILMS; TIN SULFIDES; ZINC COMPOUNDS