Synthesis of solution-processed Cu<inf>2</inf>ZnSnSe<inf>4</inf> thin films on transparent conducting oxide glass substrates

Agus Ismail, Jin Woo Cho, Se Jin Park, Yun Jeong Hwang, Byoung Koun Min

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Cu<inf>2</inf>ZnSnSe<inf>4</inf> (CZTSe) thin films were synthesized on transparent conducting oxide glass substrates via a simple, non-toxic, and low-cost process using a precursor solution paste. A three-step heating process (oxidation, sulfurization, and selenization) was employed to synthesize a CZTSe thin film as an absorber layer for use in thin-film solar cells. In particular, we focused on the effects of sulfurization conditions on CZTSe film formation. We found that sulfurization at 400 °C involves the formation of secondary phases such as CuSe2 and Cu<inf>2</inf>SnSe3, but they gradually disappeared when the temperature was increased. The formed CZTSe thin films showed homogenous and good crystallinity with grain sizes of approximately 600 nm. A solar cell device was tentatively fabricated and showed a power conversion efficiency of 2.2% on an active area of 0.44 cm<sup>2</sup> with an open circuit voltage of 365 mV, a short current density of 20.6 mA/cm<sup>2</sup>, and a fill factor of 28.7%.

Original languageEnglish
Pages (from-to)1985-1988
Number of pages4
JournalBulletin of the Korean Chemical Society
Volume35
Issue number7
DOIs
Publication statusPublished - 2014 Jul 20

Fingerprint

Oxides
Glass
Thin films
Substrates
Industrial heating
Open circuit voltage
Ointments
Conversion efficiency
Solar cells
Current density
Oxidation
Costs
Temperature
Thin film solar cells

Keywords

  • CZTSe
  • Solar Cells
  • Solution processes
  • Transparent conducting oxide glass

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Synthesis of solution-processed Cu<inf>2</inf>ZnSnSe<inf>4</inf> thin films on transparent conducting oxide glass substrates. / Ismail, Agus; Cho, Jin Woo; Park, Se Jin; Hwang, Yun Jeong; Min, Byoung Koun.

In: Bulletin of the Korean Chemical Society, Vol. 35, No. 7, 20.07.2014, p. 1985-1988.

Research output: Contribution to journalArticle

Ismail, Agus ; Cho, Jin Woo ; Park, Se Jin ; Hwang, Yun Jeong ; Min, Byoung Koun. / Synthesis of solution-processed Cu<inf>2</inf>ZnSnSe<inf>4</inf> thin films on transparent conducting oxide glass substrates. In: Bulletin of the Korean Chemical Society. 2014 ; Vol. 35, No. 7. pp. 1985-1988.
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AB - Cu2ZnSnSe4 (CZTSe) thin films were synthesized on transparent conducting oxide glass substrates via a simple, non-toxic, and low-cost process using a precursor solution paste. A three-step heating process (oxidation, sulfurization, and selenization) was employed to synthesize a CZTSe thin film as an absorber layer for use in thin-film solar cells. In particular, we focused on the effects of sulfurization conditions on CZTSe film formation. We found that sulfurization at 400 °C involves the formation of secondary phases such as CuSe2 and Cu2SnSe3, but they gradually disappeared when the temperature was increased. The formed CZTSe thin films showed homogenous and good crystallinity with grain sizes of approximately 600 nm. A solar cell device was tentatively fabricated and showed a power conversion efficiency of 2.2% on an active area of 0.44 cm2 with an open circuit voltage of 365 mV, a short current density of 20.6 mA/cm2, and a fill factor of 28.7%.

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