Directly deposited quantum dot solids using a colloidally stable nanoparticle ink

A. Fischer, L. Rollny, J. Pan, G.H. Carey, S.M. Thon, S. Hoogland, O. Voznyy, D. Zhitomirsky, J.Y.
Adv. Mater., 25(40), 5742-5749, (2013)

Directly deposited quantum dot solids using a colloidally stable nanoparticle ink

Keywords

Quantum dot solid

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.

Code

DOI: 10.1002/adma.201302147

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