Directly deposited quantum dot solids using a colloidally stable nanoparticle ink

Armin H. Fischer, Lisa R. Rollny, Jun Pan, Graham H. Carey, Susanna Thon, Sjoerd H. Hoogland, Oleksandr Voznyy, David Zhitomirsky, Jinyoung Kim, Osman Bakr, E. H. Sargent

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

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. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)5742-5749
Number of pages8
JournalAdvanced Materials
Volume25
Issue number40
DOIs
StatePublished - Aug 12 2013

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-009-21
Acknowledgements: This publication is based in part on work supported by Award KUS-11-009-21 and GRP-CF-2011-21-P, made by King Abdullah University of Science and Technology (KAUST). The authors would also like to acknowledge Arash Simchi for taking the FiB-TEM images and especially to Joel A. Tang and Tim Burrows for their tremendous help with DOSY and CPMAS NMR measurements and interpretation. The authors further want to acknowledge the technical assistance and scientific guidance of E. Palmiano, R. Wolowiec, and D. Kopilovic. The authors wish to acknowledge the Canadian Foundation for Innovation, project number 19119, the Ontario Research Fund of the Centre for Spectroscopic Investigation of Complex Organic Molecules and Polymers, and the Natural Sciences and Engineering Research Council (NSERC) of Canada for funding.

ASJC Scopus subject areas

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

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