Synthesis and characterization of Cu2ZnSnS4 from Cu2SnS3 and ZnS compounds

Shi na Li, Rui xin Ma, Dong ran Li, Fan Yang, Xiao yong Zhang, Xiang Li, Hong min Zhu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The Cu2ZnSnS4 (CZTS) powders are successfully synthesized by using ZnS and Cu2SnS3 as raw materials directly without any intermediate phase at 450 °C for 3 h in Ar atmosphere. The crystalline structure, morphology and optical properties of the CZTS powders are characterized by X-ray diffraction (XRD), Raman spectrum, field emission scanning electron microscopy (FESEM) and ultraviolet-visible (UV-vis) spectrophotometer, respectively. The results show that the band gap of the obtained CZTS is 1.53 eV. The CZTS film is fabricated by spin coating a mixture of CZTS powders and novolac resin with a weight percentage of 30%. The photoelectrical properties of such CZTS films are measured, and the results show an incident light density of 100 mW·cm−2 with the bias voltage of 0.40 V, and the photocurrent density can approach 9.80×10−5 A·cm2 within 50 s, giving an on/off switching ratio of 1.64.

Original languageEnglish
Pages (from-to)277-280
Number of pages4
JournalOptoelectronics Letters
Volume11
Issue number4
DOIs
Publication statusPublished - 2015 Jul 25
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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