Solution processed high band-gap CuInGaS2 thin film for solar cell applications

Se Jin Park, Jin Woo Cho, Joong Kee Lee, Keeshik Shin, Ji Hyun Kim, Byoung Koun Min

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

A high band-gap (~1.55 eV) chalcopyrite compound film (CuInGaS2) was synthesized by a precursor solution-based coating method with an oxidation and a sulfurization heat treatment process. The film revealed two distinct morphologies: a densely packed bulk layer and a rough surface layer. We found that the rough surface is attributed to the formation of Ga deficient CuInGaS2 crystallites. Because of the high band-gap optical property of the CuInGaS2 absorber film, a solar cell device with this film showed a relatively high open circuit voltage (~787 mV) with a power conversion efficiency of 8.28% under standard irradiation conditions.

Original languageEnglish
Pages (from-to)122-128
Number of pages7
JournalProgress in Photovoltaics: Research and Applications
Volume22
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Solar cells
Energy gap
solar cells
Thin films
thin films
Open circuit voltage
open circuit voltage
Crystallites
crystallites
Conversion efficiency
coating
high voltages
absorbers
surface layers
heat treatment
Optical properties
Heat treatment
Irradiation
optical properties
Coatings

Keywords

  • CIGS
  • CuInGaS
  • high band-gap
  • solar cells
  • solution process

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Solution processed high band-gap CuInGaS2 thin film for solar cell applications. / Park, Se Jin; Cho, Jin Woo; Lee, Joong Kee; Shin, Keeshik; Kim, Ji Hyun; Min, Byoung Koun.

In: Progress in Photovoltaics: Research and Applications, Vol. 22, No. 1, 01.01.2014, p. 122-128.

Research output: Contribution to journalArticle

Park, Se Jin ; Cho, Jin Woo ; Lee, Joong Kee ; Shin, Keeshik ; Kim, Ji Hyun ; Min, Byoung Koun. / Solution processed high band-gap CuInGaS2 thin film for solar cell applications. In: Progress in Photovoltaics: Research and Applications. 2014 ; Vol. 22, No. 1. pp. 122-128.
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