In:
Journal of Nanoscience and Nanotechnology, American Scientific Publishers, Vol. 21, No. 7 ( 2021-07-01), p. 4037-4041
Abstract:
Molecular size of OLED emitting materials is nano-metric size and when it is applied to the electric field it emits the light based on the energy conversion result. As new green fluorescent emitters, N,N,N',N'-Tetra- m -tolyl-anthracene-9,10-diamine ( m -Me-TAD) and N,N,N',N' -Tetra- p -tolyl-anthracene-9,10-diamine
( p -Me-TAD) were synthesized and the properties were evaluated. In solution state, photoluminescence (PL) maximum wavelength is 517 nm for m -Me-TAD and 529 nm for p -Me-TAD. In electroluminescence (EL) spectra, EL maximum wavelength of m -Me-TAD is 518 nm and p -Me-TAD
is 533 nm. The doped device using m -Me-TAD as green fluorescent dopant exhibited current efficiency (CE) of 17.41 cd/A and external quantum efficiency (EQE) of 7.41%. The doped device with p -Me-TAD was optimized in order to achieve a green OLED with high efficiency.
Type of Medium:
Online Resource
ISSN:
1533-4880
DOI:
10.1166/jnn.2021.19237
Language:
English
Publisher:
American Scientific Publishers
Publication Date:
2021
SSG:
11