Enhancement of the photovoltaic performance in PbS nanocrystal:P3HT hybrid composite devices by post-treatment-driven ligand exchange

Jangwon Seo, Sung Jin Kim, Won Jin Kim, Rohit Singh, Marek Samoc, Alexander N. Cartwright, Paras N. Prasad

Research output: Contribution to journalArticle

84 Scopus citations

Abstract

A methodology for achieving versatile and facile ligand exchange by post-fabrication chemical treatment in PbS nanocrystal:poly(3-hexylthiophene) (P3HT) hybrid composite photovoltaic devices is demonstrated. We report a considerable improvement of the photovoltaic performance after post-fabrication chemical treatment using acetic acid to produce PbS nanocrystals surrounded by short-length ligands. Annealing induced morphological and photovoltaic performance changes in the resulting composite devices were investigated as a function of the annealing time.

Original languageEnglish (US)
Article number095202
JournalNanotechnology
Volume20
Issue number9
DOIs
StatePublished - May 8 2009
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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