Improved air stability of PbS-sensitized solar cell by incorporating ethanedithiol during spin-assisted successive ionic layer adsorption and reaction

Sang Hyuk Im, Hi Jung Kim, Sungwoo Kim, Sang Wook Kim, Sang Il Seok

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We fabricated all solid-state PbS-sensitized solar cells by the repeated step-by-step spin-coating of Pb(NO3)2, Na2S, and ethanedithiol (EDT) solution on mesoporous TiO2 (mp-TiO 2) films. Incorporating EDT molecules into the PbS nanoparticles during the spin-assisted successive ionic layer adsorption and reaction (SILAR) process greatly improved the stability of the device in air and its efficiency owing to the improved charge injection and surface passivation because the EDT molecules prevent the overgrowth and oxidation of the PbS nanoparticles during the layer-by-layer coating of the EDT molecules.

Original languageEnglish
Pages (from-to)2352-2357
Number of pages6
JournalOrganic Electronics
Volume13
Issue number11
DOIs
Publication statusPublished - 2012 Nov

Keywords

  • Air stability
  • Ethanedithiol
  • PbS-sensitizer
  • Solar cells
  • Spin-assisted successive ionic layer adsorption and reaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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