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Versatile PbS Quantum Dot Ligand Exchange Systems in the Presence of Pb‐Thiolates
Author(s) -
Shestha Aabhash,
Yin Yanting,
Andersson Gunther G.,
Spooner Nigel A.,
Qiao Shizhang,
Dai Sheng
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201602956
Subject(s) - quantum dot , lead sulfide , ligand (biochemistry) , photoluminescence , absorption (acoustics) , chemistry , materials science , photochemistry , nanotechnology , optoelectronics , biochemistry , receptor , composite material
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.