Luminescent properties of a novel fluorene organic material.
The photo-physical properties of 6,6'-(9H-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.
Lou
Shuangling
S
State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, People's Republic of China.
Yu
Junsheng
J
Qian
Jincheng
J
Jiang
Yadong
Y
Zhang
Qing
Q
Xu
Hongjie
H
Sun
Limei
L
D000042:Absorption; D003959:Diamines / Q000138:chemical synthesis / Q000737:chemistry*; D004563:Electrochemistry; D004735:Energy Transfer; D005449:Fluorenes / Q000138:chemical synthesis / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D015394:Molecular Structure; D010777:Photochemistry; D011810:Quinoxalines / Q000138:chemical synthesis / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry
D003959:Diamines; D005449:Fluorenes; D011810:Quinoxalines; D012996:Solutions