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Versatile PbS Quantum Dot Ligand Exchange Systems in the Presence of Pb-Thiolates
Aabhash Shestha1, Yanting Yin2, Gunther G Andersson2
1School of Chemical Engineering, The University of Adelaide, SA, 5005, Australia.
Small (Weinheim an Der Bergstrasse, Germany)
|November 19, 2016
Abstract:
A robust solution phase ligand exchange system for lead sulfide (PbS) quantum dots (QDs) in the presence of Pb-thiolate ligands is presented that can better preserve the excitonic absorption and emission features as compared to the conventional ligands. The photoluminescence after ligand exchange of PbS QDs with Pb-thiolate ligand is preserved up to 78% of the original oleate capped PbS QDs.
