Engineering the surface chemistry of lead chalcogenide nanocrystal solids to enhance carrier mobility and lifetime in optoelectronic devices

Soong Ju Oh, D. B. Straus, T. Zhao, J. H. Choi, S. W. Lee, E. A. Gaulding, C. B. Murray, C. R. Kagan

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We introduce a stepwise, hybrid ligand-exchange method for lead chalcogenide nanocrystal (NC) thin films using the compact-inorganic ligand thiocyanate and the short organic ligand benzenediothiolate. Spectroscopic and device measurements show that hybrid exchange enhances both carrier mobility and lifetime in NC thin films. The increased mobility-lifetime product achieved by this method enables demonstration of optoelectronic devices with enhanced power conversion and quantum efficiency.

Original languageEnglish
Pages (from-to)728-731
Number of pages4
JournalChemical Communications
Volume53
Issue number4
DOIs
Publication statusPublished - 2017 Jan 1

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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