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Hot Exciton Emission: Surface Plasmon Enhanced Hot Exciton Emission in Deep UV‐Emitting AlGaN Multiple Quantum Wells (Advanced Optical Materials 5/2014)
Author(s) -
Yin Jun,
Li Yang,
Chen Shengchang,
Li Jing,
Kang Junyong,
Li Wei,
Jin Peng,
Chen Yonghai,
Wu Zhihao,
Dai Jiangnan,
Fang Yanyan,
Chen Changqing
Publication year - 2014
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201470031
Subject(s) - exciton , materials science , surface plasmon , plasmon , electron , ground state , optoelectronics , coupling (piping) , quantum well , light emission , photoluminescence , molecular physics , atomic physics , condensed matter physics , physics , optics , laser , quantum mechanics , metallurgy
Deep UV emission from hot exciton transitions at higher energy sub‐bands can be significantly enhanced by an energy‐matched surface plasmon (SP)‐exciton coupling effect in AlGaN multiple quantum wells decorated with Al nanoparticles. The ground state emission is correspondingly suppressed due to the altered recombination channel of excitons after introducing the SP‐exciton coupling effect. Here, J. Li, Z. H. Wu, and co‐workers show violet pairs of electrons and holes and light representing the hot excitions and their emission with a higher energy, and blue pairs of electrons and holes and the light represent ground state excitions and their emission.