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

Journal Article · Mon Mar 30 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4916994· OSTI ID:22398804

Liu, Xiaolei; Cui, Hongtao; Kong, Charlie; Hao, Xiaojing; Huang, Yidan; Liu, Fangyang; Song, Ning; Conibeer, Gavin; Green, Martin ^[1]

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1. School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, New South Wales 2052 (Australia)

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.

• OSTI ID: 22398804
• Journal Information: Applied Physics Letters, Vol. 106, Issue 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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