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Manipulation of Light Flows in Organic Color‐Graded Microstructures towards Integrated Photonic Heterojunction Devices
Author(s) -
Zhang Chuang,
Yan Yongli,
Yao Jiannian,
Zhao Yong Sheng
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201300201
Subject(s) - materials science , optoelectronics , photonics , heterojunction , exciton , diode , light emitting diode , transistor , photonic crystal , optics , physics , quantum mechanics , voltage
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.