Near UV–vis LED-excitable two-branched sensitizers for cationic, radical, and thiol-ene photopolymerizations
摘要:
Two novel branched sensitizers bearing biphenyl or fluorenyl groups as the linking skeleton and triphenylamine-stilbene-thiomethyl benzonitrile as peripheral branches were designed. Strong absorption of light in the UV-vis range (lambda(max) = 389-397 nm, epsilon(max) = 60,200-90,300 M-1 cm(-1)) matched the emission of new light sources, i.e., UV-vis light-emitting diodes at 365-450 nm. The reactive species produced from the photoinitiating systems based on these chromophores themselves or combined with an iodonium salt, N-vinylcarbazole, or an amine were highly efficient for versatile photopolymerizations (radical, cationic, and thiol-ene polymerizations) upon soft exposure conditions (365-450 nm light emitting diodes). The UV-vis spectra, theoretical calculation of molecular orbitals, electrochemistry, and fluorescence quenching measurements were studied to reveal the photochemical mechanism. (C) 2015 Elsevier Ltd. All rights reserved.
Luminescent device material, luminescent device using the same, and amine compound
申请人:Nii Kazumi
公开号:US20050065351A1
公开(公告)日:2005-03-24
A styrylamine compound comprising a structure represented by the following formula (XI):
wherein Z
2
, R
21
, R
22
, R
26
, R
27
and n are as defined in the specification.
ORGANIC COMPOUND, ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE COMPOUND
申请人:LG DISPLAY CO., LTD.
公开号:US20210163504A1
公开(公告)日:2021-06-03
The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes an electron donor moiety separated from an electron acceptor moiety, thus has delayed fluorescent properties. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device can allows the OLED and the organic light emitting device to improve their luminous efficiency.
POLYMER MIT ALDEHYDGRUPPEN, UMSETZUNG SOWIE VERNETZUNG DIESES POLYMERS, VERNETZTES POLYMER SOWIE ELEKTROLUMINESZENZVORRICHTUNG ENTHALTEND DIESES POLYMER