Journal
SYNTHETIC METALS
Volume 198, Issue -, Pages 142-149Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2014.10.014
Keywords
Conducting polymer; Quantum dots; Bio-imaging; Photoluminescence; Quantum size effect
Funding
- China West Normal University Students Research Fund [42713070]
- China West Normal University Fund [12B017]
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In this paper, poly(o-phenylenediamine) quantum dots (PoQDs) with amorphous structures were synthesized via a simple hydrothermal treatment. The size of PoQDs can be easily controlled by changing the reaction time. All these quantum dots show excellent photoluminescent (PL) performance. The p-pi* transition between N and conjugated system in PoQDs increased the quantum yield significantly. Further experiments suggested the existence of quantum size effect in amorphous structures for the first time. The controllable PL performance were closely related to the significant quantum size effect. What's more, these PoQDs were low cost and have high anti-jamming performance, good stability and application perspective of fluorescent bio-imaging. (C) 2014 Elsevier B.V. All rights reserved.
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