skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode

Abstract

A silicon (Si) quantum dot (QD)-based hybrid inorganic/organic light-emitting diode (LED) was fabricated via solution processing. This device exhibited white-blue electroluminescence at a low applied voltage of 6 V, with 78% of the effective emission obtained from the Si QDs. This hybrid LED produced current and optical power densities 280 and 350 times greater than those previously reported for such device. The superior performance of this hybrid device was obtained by both the prepared Si QDs and the optimized layer structure and thereby improving carrier migration through the hybrid LED and carrier recombination in the homogeneous Si QD layer.

Authors:
;  [1];  [1];  [2]
  1. Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-hiroshima 739-8526 (Japan)
  2. (N-BARD), Hiroshima University, Higashi-hiroshima 739-8526 (Japan)
Publication Date:
OSTI Identifier:
22402447
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTROLUMINESCENCE; HYBRIDIZATION; LAYERS; LIGHT EMITTING DIODES; QUANTUM DOTS; RECOMBINATION; SILICON

Citation Formats

Xin, Yunzi, Nishio, Kazuyuki, Saitow, Ken-ichi, E-mail: saitow@hiroshima-u.ac.jp, and Natural Science Center for Basic Research and Development. White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode. United States: N. p., 2015. Web. doi:10.1063/1.4921415.
Xin, Yunzi, Nishio, Kazuyuki, Saitow, Ken-ichi, E-mail: saitow@hiroshima-u.ac.jp, & Natural Science Center for Basic Research and Development. White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode. United States. doi:10.1063/1.4921415.
Xin, Yunzi, Nishio, Kazuyuki, Saitow, Ken-ichi, E-mail: saitow@hiroshima-u.ac.jp, and Natural Science Center for Basic Research and Development. Mon . "White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode". United States. doi:10.1063/1.4921415.
@article{osti_22402447,
title = {White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode},
author = {Xin, Yunzi and Nishio, Kazuyuki and Saitow, Ken-ichi, E-mail: saitow@hiroshima-u.ac.jp and Natural Science Center for Basic Research and Development},
abstractNote = {A silicon (Si) quantum dot (QD)-based hybrid inorganic/organic light-emitting diode (LED) was fabricated via solution processing. This device exhibited white-blue electroluminescence at a low applied voltage of 6 V, with 78% of the effective emission obtained from the Si QDs. This hybrid LED produced current and optical power densities 280 and 350 times greater than those previously reported for such device. The superior performance of this hybrid device was obtained by both the prepared Si QDs and the optimized layer structure and thereby improving carrier migration through the hybrid LED and carrier recombination in the homogeneous Si QD layer.},
doi = {10.1063/1.4921415},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 20,
volume = 106,
place = {United States},
year = {2015},
month = {5}
}