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Issue 1, 2012
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A non-toxic, solution-processed, earth abundant absorbing layer for thin-film solar cells

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Abstract

Copper zinc tin sulfide (Cu2ZnSnS4, CZTS) has attracted significant attention in the past few years as a next generation absorber material for the production of thin film solar cells on large scales due to the high natural abundance of all constituents, tunable direct band gap energy ranging from 1.0 to 1.5 eV, and large absorption coefficient. In addition, to address the issue of expensive vacuum-based processes, non-vacuum solution-based approaches are being developed for CZTS absorber layer deposition. Here, we demonstrate the fabrication of a high quality CZTS absorber layer with a thickness of 2.8–3.0 μm and micrometre-scaled grains (1–2.5 μm) using air-stable non-toxic solvent-based inks. Our approach for the fabrication of CZTS absorber, reported here, will be the first step in achieving low-cost and large area solar cells with high efficiency.

Graphical abstract: A non-toxic, solution-processed, earth abundant absorbing layer for thin-film solar cells

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Publication details

The article was received on 08 Aug 2011, accepted on 04 Oct 2011 and first published on 31 Oct 2011


Article type: Paper
DOI: 10.1039/C1EE02314D
Citation: Energy Environ. Sci., 2012,5, 5340-5345
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    A non-toxic, solution-processed, earth abundant absorbing layer for thin-film solar cells

    K. Woo, Y. Kim and J. Moon, Energy Environ. Sci., 2012, 5, 5340
    DOI: 10.1039/C1EE02314D

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