View : 206 Download: 0

High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter

Title
High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter
Authors
Kim, Dae-HyeonD'Aleo, AnthonyChen, Xian-KaiSandanayaka, Atula D. S.Yao, DandanZhao, LiKomino, TakeshiZaborova, ElenaCanard, GabrielTsuchiya, YouichiChoi, EunyoungWu, Jeong WeonFages, FredericBredas, Jean-LucRibierre, Jean-CharlesAdachi, Chihaya
Ewha Authors
우정원Anthony Daleo
SCOPUS Author ID
우정원scopus
Issue Date
2018
Journal Title
NATURE PHOTONICS
ISSN
1749-4885JCR Link

1749-4893JCR Link
Citation
NATURE PHOTONICS vol. 12, no. 2, pp. 98 - +
Publisher
NATURE PUBLISHING GROUP
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Near-infrared organic light-emitting diodes and semiconductor lasers could benefit a variety of applications including night-vision displays, sensors and information-secured displays. Organic dyes can generate electroluminescence efficiently at visible wavelengths, but organic light-emitting diodes are still underperforming in the near-infrared region. Here, we report thermally activated delayed fluorescent organic light-emitting diodes that operate at near-infrared wavelengths with a maximum external quantum efficiency of nearly 10% using a boron difluoride curcuminoid derivative. As well as an effective upconversion from triplet to singlet excited states due to the non-adiabatic coupling effect, this donor-acceptor-donor compound also exhibits efficient amplified spontaneous emission. By controlling the polarity of the active medium, the maximum emission wavelength of the electroluminescence spectrum can be tuned from 700 to 780 nm. This study represents an important advance in near-infrared organic light-emitting diodes and the design of alternative molecular architectures for photonic applications based on thermally activated delayed fluorescence.
DOI
10.1038/s41566-017-0087-y
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE