Synthesis of ZnSe Quantum Dots Using a Continuous-Flow Microreactor and Their White Emission through Energy Transfer

Title
Synthesis of ZnSe Quantum Dots Using a Continuous-Flow Microreactor and Their White Emission through Energy Transfer
Authors
권병화김현기김영선강동석전덕영
Issue Date
2013-06
Publisher
ECS solid state letters : SSL
Citation
VOL 2, NO 8, R27-R30
Abstract
We report a continuous-flow microreaction synthesis of ZnSe quantum dots (QDs) which are controllable in their emission from blue to white light. The emission of ZnSe QDs exhibits quantum confinement effect, which is adjusted by the flow rate of precursor solution. The ZnSe QDs’ high concentration solution shows red-shifted emission in the blue region and strongly enhanced greenyellow emission from deep levels due to the inter-QD energy transfer, thereby exhibiting white color with CIE color coordinates of (0.33, 0.33). The red-shifted band-edge emission with longer decay time in the dense solution confirms that the energy is transferred efficiently between QDs.
URI
http://pubs.kist.re.kr/handle/201004/49789
ISSN
21628742
Appears in Collections:
KIST Publication > Article
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