Three dimensional web-like fibrous CuInS2 film

Hyun Yoon, Min Woo Kim, Hayong Kim, Salem S. Al-Deyab, Scott C. James, SeJin Ahn, Suk Goo Yoon

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

To ensure effective collection of photo-generated minority electrons in a CuInS2 thin film solar cell, a three-dimensional nanostructure was constructed by electrospinning a copper-indium solution precursor onto a molybdenum substrate. The electrospun nanofibers adhered onto the underlying layers before undergoing sulfurization at 500°C to produce a three-dimensional web-like fibrous CuInS2 film. This fibrous film was characterized by scanning electron microscopy, X-ray diffraction, and Auger electron spectroscopy, thereby characterizing the 3D fibrous nanostructure of the CuInS2 film. This 3D structure could lead to next-generation solar cells optimized for maximal charge separation to enhance photovoltaic efficiency of solution-processed thin film solar cells.

Original languageEnglish
Pages (from-to)588-593
Number of pages6
JournalApplied Surface Science
Volume351
DOIs
Publication statusPublished - 2015

Keywords

  • 3D nanostructure
  • CuInS
  • Electrospinning
  • Electrospraying
  • Nanofiber

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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