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Luminescent properties of a novel fluorene organic material
Author(s) -
Lou Shuangling,
Yu Junsheng,
Qian Jincheng,
Jiang Yadong,
Zhang Qing,
Xu Hongjie,
Sun Limei
Publication year - 2008
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.1073
Subject(s) - photoluminescence , fluorene , materials science , luminescence , electroluminescence , biphenyl , doping , absorption (acoustics) , analytical chemistry (journal) , photochemistry , diamine , quinoxaline , vacuum deposition , oled , excimer , emission spectrum , absorption spectroscopy , spectral line , fluorescence , thin film , polymer , polymer chemistry , optoelectronics , chemistry , organic chemistry , nanotechnology , optics , composite material , physics , layer (electronics) , astronomy
The photo‐physical properties of 6,6′‐(9 H ‐fluoren‐9,9‐diyl)bis(2,3‐bis(9,9‐dihexyl‐9H‐fluoren‐2‐yl)quinoxaline) (BFLBBFLYQ) and its blend doped with N ′‐biphenyl‐ N , N ′‐bis‐(3‐methylphenyl)‐1,1′‐biphenyl‐4,4′‐diamine (TPD) were investigated. The absorption, photoluminescence (PL) and electroluminescence (EL) properties of pristine BFLBBFLYQ and blend in solution and spin‐coated film are outlined, including a discussion of charge‐transfer (CT) exciplex emission of BFLBBFLYQ:TPD blend in the solid state. The luminescent properties of BFLBBFLYQ films using different deposition processes were studied. It was found that the low‐energy emission bands at 530–570 nm appeared in the PL spectra of BFLBBFLYQ evaporated films in ultra‐high vacuum. Also, the low‐energy band was the exclusive emission in the EL spectra of BFLBBFLYQ films. Copyright © 2008 John Wiley & Sons, Ltd.