Open AccessRoom-temperature electroluminescence from Si microdisks with Ge quantum dots
Author(s) -
Jinsong Xia,
Yuuki Takeda,
Noritaka Usami,
Takuya Maruizumi,
Y. Shiraki
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.013945
Subject(s) - electroluminescence , whispering gallery wave , quantum dot , materials science , optoelectronics , silicon on insulator , silicon , whispering gallery , resonator , light emitting diode , optical microcavity , optics , nanotechnology , physics , laser , layer (electronics)
A current-injected silicon-based light-emitting device was fabricated on silicon-on-insulator (SOI) by embedding Ge self-assembled quantum dots into a silicon microdisk resonator with p-i-n junction for current-injection. Room-temperature resonant electroluminescence (EL) from Ge self-assembled quantum dots in the microdisk was successfully observed under current injection, and observed EL peaks corresponding to the whispering gallery modes (WGMs) supported by the microdisk resonator were well identified by means of numerical simulations.