1121748-44-4Relevant academic research and scientific papers
NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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, (2012/02/13)
Provided are novel organic electroluminescent compounds and an organic electroluminescent device using the same. Because the organic electroluminescent device using the organic electroluminescent compound as a hole transport material or a hole injection material exhibits good luminous efficiency and excellent lifetime properties, it is used to manufacture OLED devices having superior operating lifetime and consuming less power due to improved power efficiency.
BENZOFLUORENE COMPOUND AND USE THEREOF
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Page/Page column 32-33, (2009/01/24)
A novel material having high hole-transporting ability and a high glass transition temperature and having long-lasting durability is obtained. A benzofluorene compound represented by formula (1) is used. (In the formula, M is a substituted or unsubstituted aryl group having 6-40 carbon atoms or a substituted or unsubstituted heteroaryl group having 5-40 carbon atoms; Ar1 to Ar4 each independently is a substituted or unsubstituted aryl group having 6-40 carbon atoms or a substituted or unsubstituted heteroaryl group having 5-40 carbon atoms, provided that at least one of Ar1 to Ar4 is a substituent represented by any of the following formulae (2) to (5); and p is an integer of 0-2.) (In the formulae, R1 to R4 each independently is a hydrogen atom, a halogen atom, a substituted or unsubstituted amino group, a linear, branched, or cyclic alkyl group, a linear, branched, or cyclic alkoxy group, a substituted or unsubstituted aryl group having 6-40 carbon atoms, or a substituted or unsubstituted aryloxy group having 6-40 carbon atoms, provided that R1 and R2 may be bonded to each other to form a ring.)
