Single-step growth of CuInS2 nanospheres morphology thin films by electrospray chemical aerosol deposition technique

Logu Thirumalaisamy, Soundarrajan Palanivel, Ramesh Raliya, Shalinee Kavadiya, Kunjithapatham Sethuraman, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Highly crystalline copper indium disulfide (CuInS2) nanospheres morphology thin film have been deposited on fluorine-doped tin oxide (FTO) substrate by a single step using an electrospray chemical aerosol deposition (ESCAD) technique. The structural, optical, morphological and electrical properties of the CuInS2 nanospheres thin film is highlighted in this letter. Nanospheres CuInS2 film exhibits hexagonal wurtzite crystal structure with polycrystalline nature. The observed optical absorption in the infrared (IR) and visible region for CuInS2 semiconductor indicates narrow band gap (Eg) nature. Further, Eg value calculated using Tauc's plot which is found to be 1.47 eV. The formation of well-interconnected spherical shaped CuInS2 nanospheres is portrayed from scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images. The photoconductivity of prepared CuInS2 nanospheres morphology film shows significant photocurrent response. The controlled fine aerosol formation in ESCAD leads to the spherical shaped CuInS2 nanospheres deposition on FTO substrate result in pronounced electrical and photophysical properties. So, this work could be facilitated a special interest in developing optoelectronic and photovoltaic devices.

Original languageEnglish (US)
Pages (from-to)206-209
Number of pages4
JournalMaterials Letters
Volume238
DOIs
StatePublished - Mar 1 2019
Externally publishedYes

Keywords

  • CuInS
  • Photoresponse
  • Semiconductors
  • Substrate temperature
  • Thin films

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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