期刊
ADVANCED MATERIALS
卷 25, 期 20, 页码 2854-2859出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201300201
关键词
integrated photonics; light manipulation; energy transfer; exciton conversion; organic heterojunctions
类别
资金
- National Natural Science Foundation of China [21125315, 51073164, 91022022]
- Chinese Academy of Sciences
- Ministry of Science and Technology of China [2012YQ120060]
Organic color-graded optical waveguides permit low-power photonic analogies of diode/transistors based on the energy-transferred conversion of exciton species. The donor-acceptor junction can asymmetrically output blue/red colors due to the mono-directional energy transfer during light propagation. The switching function of transistors is achieved with an additional gate input by altering the ground state density of acceptors. These organic heterogeneous waveguides are further cascaded together to steer the guided light flows for potential applications in photonic integrations.
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