Influence of precursor type on non-toxic hybrid inks for high-efficiency Cu2ZnSnS4 thin-film solar cells

Kyujin Kim, Inhyuk Kim, Yunjung Oh, Daehee Lee, Kyoohee Woo, Sunho Jeong, Jooho Moon

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Copper zinc tin sulfide (CZTS) has attracted significant attention in the past few years as a next-generation absorber material, and is a promising candidate for the mass production of thin-film solar cells with high efficiencies. Here, we demonstrate a non-toxic solvent-based hybrid-ink approach for the fabrication of a high-quality CZTS absorber layer with a thickness of 1.3 μm and micrometer-scale grains (∼1 μm), resulting in an efficiency of 8.17%. In particular, we investigate the effects of the solid-state Zn metal or ZnS precursor on both the phase transformation and the device performance, which clearly suggests that the low-melting-point Zn phase effectively facilitates the phase-pure, high-performance CZTS absorber layer without the formation of secondary phases that have been observed in most cases of CZTS solar cells derived from wet chemical processes. We believe that our environmentally friendly approach will pave the way toward achieving low-cost, scalable solar cells with high efficiencies.

Original languageEnglish
Pages (from-to)4323-4332
Number of pages10
JournalGreen Chemistry
Volume16
Issue number9
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

tin
Ink
Tin
Zinc
Copper
zinc
sulfide
copper
Solar cells
chemical process
Melting point
melting
Phase transitions
Metals
Fabrication
Sulfides
Thin film solar cells
Cu2ZnSnS4
tin sulfide
ink

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution

Cite this

Kim, Kyujin ; Kim, Inhyuk ; Oh, Yunjung ; Lee, Daehee ; Woo, Kyoohee ; Jeong, Sunho ; Moon, Jooho. / Influence of precursor type on non-toxic hybrid inks for high-efficiency Cu2ZnSnS4 thin-film solar cells. In: Green Chemistry. 2014 ; Vol. 16, No. 9. pp. 4323-4332.
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Influence of precursor type on non-toxic hybrid inks for high-efficiency Cu2ZnSnS4 thin-film solar cells. / Kim, Kyujin; Kim, Inhyuk; Oh, Yunjung; Lee, Daehee; Woo, Kyoohee; Jeong, Sunho; Moon, Jooho.

In: Green Chemistry, Vol. 16, No. 9, 01.01.2014, p. 4323-4332.

Research output: Contribution to journalArticle

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