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We present the direct measurement of highly excited Rydberg state using a ladder-type electromagnetically induced transparency in the 5S1/2-5P3/2-nL transition of 87Rb atoms in a room-temperature vapor cell.
A series of bis(diarylamino)stilbene derivatives with various aromatic system were synthesized via the Buchwald-Hartwig cross-coupling reaction. Multilayer devices with the configuration of ITO / NPB (700 ??) / ADN: blue dopants 1-5 (300 ??: 2 %) / Alq3 (300 ??) / Liq (10 ??) / Al were fabricated. Among the molecules, the devices using 4,4'-bis (9,9-diethylfluoren-2-yl-3,5-di-tertbutylphenylamino)...
A series of new blue emitting materials; 9,10-diotolylanthracene (1), 2-tert-butyl-9,10-diphenylanthracene (2), 10,10'-diphenyl-9,9'-bianthracene (3), and 1,4-bis(10-phenylanthracen-9-yl)benzene (4) were designed and synthesized for organic light-emitting diodes (OLEDs). In order to test the electroluminescent properties of 1-4, those were used as the host materials for the blue dopant materials,...
The preparation and photophysics of organometallic Ir(III) complexes with 3-phenylpyridazine (H6Clppdz) and its derivative are reported. IrCl 3 .nH 2 O reacts with H6Clppdz, and 3-chloro-6-(3 ' -methoxyphenyl)-4-methyl-pyridazine (MCOMppdz) to give the corresponding chloride-bridged dimers, (6Clppdz) 2 Ir(μ-Cl) 2 Ir(6Clppdz) 2 and (MCOMppdz) 2 ...
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