Directly deposited quantum dot solids using a colloidally stable nanoparticle ink

Armin Fischer, Lisa Rollny, Jun Pan, Graham H. Carey, Susanna M. Thon, Sjoerd Hoogland, Oleksandr Voznyy, David Zhitomirsky, Jin Young Kim, Osman M. Bakr*, Edward H. Sargent

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


We develop a photovoltaic colloidal quantum dot ink that allows for lossless, single-step coating of large areas in a manufacturing-compatible process. Our materials strategy involves a solution-phase ligand exchange to transport compatible linkers that yield 1-thioglycerol-capped PbS quantum dots in dimethyl sulfoxide with a photoluminescence quantum yield of 24%. A proof-of-principle solar cell made from the ink exhibits 2.1% power conversion efficiency.

Original languageEnglish (US)
Pages (from-to)5742-5749
Number of pages8
JournalAdvanced Materials
Issue number40
StatePublished - Oct 2013


  • colloidal quantum dots
  • ink
  • PbS
  • photovoltaics
  • scalable manufacturing
  • small mercaptans

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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