Photoswitchable quantum dots by controlling the photoinduced electron transfers

We report photoluminescence (PL) modulation of quantum dots (QDs) by photoinduced electron transfers from acridine-1,8-dione derivative surface ligands. Reversible PL switching upon many repeated cycles was demonstrated, as alternating on and off of the UV excitation for the surface ligand has succe...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2012-01, Vol.48 (73), p.9174-9176
Main Authors: Bang, Jiwon, Park, Joonhyuck, Velu, Ranganathan, Yoon, Eunjin, Lee, Kyunghoon, Cho, Sunghee, Cha, Soonwook, Chae, GeeSung, Joo, Taiha, Kim, Sungjee
Format: Article
Language:English
Subjects:
Acridines - chemistry
Derivatives
Electron transfer
Electron Transport
Excitation
Ligands
Luminescence
Luminescent Agents - chemistry
Luminescent Measurements
Modulation
Photoluminescence
Quantum Dots
Switching
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Summary:We report photoluminescence (PL) modulation of quantum dots (QDs) by photoinduced electron transfers from acridine-1,8-dione derivative surface ligands. Reversible PL switching upon many repeated cycles was demonstrated, as alternating on and off of the UV excitation for the surface ligand has successfully resulted in the QD PL modulation.
ISSN:1359-7345
1364-548X
DOI:10.1039/c2cc34002j