Non-doped deep blue light-emitting electrochemical cells from charged organic small molecules

Content Provider	Semantic Scholar
Author	Shanmugasundaram, Kanagaraj Subeesh, Madayanad Suresh Sunesh, Chozhidakath Damodharan Choe, Youngson
Copyright Year	2016
Abstract	Blue emitters are still elusive for solid-state light-emitting electrochemical cells, and limit the development of white light emitting devices for display applications. We report the photophysical, electrochemical, thermal and electroluminescence properties of two charged organic deep blue-emitters. The synthesized materials showed intense blue fluorescence with high quantum efficiencies and good thermal stabilities. Single-layered non-doped LEC devices were fabricated from solution. The fabricated non-doped LEC devices exhibited deep blue electroluminescence centered at 432 and 434 nm with the CIE coordinates of (0.15, 0.09) and (0.16, 0.10), respectively for compounds 1 and 2, which are quite close to the National Television System Committee (NTSC) standard for blue color coordinates. Electroluminescent devices operated at very low turn-on voltages reveal maximum luminance of 118 cd m−2 for compound 1 and 136 cd m−2 for compound 2. These promising results are highly desirable for the development of low cost white light-emitting devices.
Starting Page	28912
Ending Page	28918
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1039/C6RA02156E
Volume Number	6
Alternate Webpage(s)	http://www.rsc.org/suppdata/c6/ra/c6ra02156e/c6ra02156e1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C6RA02156E
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article