Chalcopyrite thin-film solar cells by industry-compatible ink-based process

We developed a new industry-compatible ink-based process to produce efficient chalcopyrite CuIn1-xGaxSe2 thin-film solar cells. Metallic In and Ga nanoparticles were produced by purely physical methods, using a low-cost and non-explosive solvent. The solvent acts as a protection against oxidation and can be removed without leaving carbon contamination. We formulated inks that can be safely coated in air by doctor blading. The precursors were converted into a functional absorber after annealing under Se vapors in a primary vacuum. This simple two-step process led to chalcopyrite CuIn1-xGaxSe2 thin-films with strong mechanical adhesion, and power conversion efficiency higher than 7%. © 2013 Elsevier B.V. All rights reserved.


Published in:
Solar Energy Materials and Solar Cells, 115, 86-92
Year:
2013
ISSN:
09270248
Keywords:
Laboratories:




 Record created 2014-11-14, last modified 2018-04-20


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