XU Hui-xia, CHEN Liu-qing, MENG Wei-xin, et al. Single-crystal Structure and Luminescent Preperty of Bi-nuclear Bis Zinc[J]. Chinese journal of luminescence, 2010, 31(2): 269-273.
XU Hui-xia, CHEN Liu-qing, MENG Wei-xin, et al. Single-crystal Structure and Luminescent Preperty of Bi-nuclear Bis Zinc[J]. Chinese journal of luminescence, 2010, 31(2): 269-273.DOI:
Bi-molecular bis zinc was synthesized. Its molecular structure was confirmed by single-crystal X-ray diffraction. Single-crystal data are as follow: space group triclinic
P-1
;
a
=0.971 9(2) nm
b
=1.124 8(2) nm
c
=1.190 2(2) nm;
α
=73.099(3)°
β
=81.498(3)°
γ
=76.476(3)°. Zn(5-MeBTZ)
2
has a good thermal stability. The double-layer devices was employed using Zn(5-MeBTZ)
2
as emitter and NPB as hole-transport material
in which Zn(5-MeBTZ)
2
gave rise to unusually large width in electroluminescence (EL) spectrum
covering almost the range of visible light. The broadened EL spectra were demonstrated to be originated from the exciplexes formed at the interface between NPB and Zn(5-MeBTZ)
2
. White OLEDs could be expected to be realized by designing of reasonable device structure.
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references
. Wang Jing, Jiang Wenlong, Zhao Yi, et al. Tuning chromaticity of white organic light-emitting devices with a new multi-layer structure [J]. Chin. J. Lumin. (发光学报), 2005, 26 (3):333-336 (in Chinese).
. Kim C H, Shinar J. Bright small molecular white organic light-emitting devices with two emission zones [J]. Appl. Phys. Lett., 2002, 80 (12):2201-2203.
. Chao C L, Chen S A. White light emission from exciplex in a bilayer device with two blue light-emitting polymers [J].Appl. Phys. Lett., 1998, 73 (4):426-428.
. Xu Bingshe, Xu Huixia, Fang Xiaohong, et al. Structure, charge-transfer and luminescent properties of bis(2-(2-hydroxyphenyl)benzothiazolate)beryllium [J]. Org. Electron., 2008, 9 (5):906-910.
. Lai S L, Chan M Y, Tong Q X. Approaches for achieving highly efficient exciplex-based organic light-emitting devices [J]. Appl. Phys. Lett., 2008, 93 (14):143301-1-3.
. Xu Huixia, Chen Liuqing, Chen Jian, et al. Synthesis, characterization and photoluminescent properties of two blue-light-emitting material [J]. Chin. J. Lumin. (发光学报) , 2008, 29 (1):32-36 (in Chinese).
. Thompson J, Blyth R I R, Mazzeo M, et al. White light emission from blends of blue-emitting organic molecules: A gene-ral route to the white organic light-emitting diode [J]. Appl. Phys. Lett., 2001, 79 (5):560-562.
. Xu Bingshe, Xu Huixia, Chen Liuqing, et al. Effects of methyl substitution of metal (II) bis(2-(2-hydroxyphenyl) benzothiazolate) chelates on optical properties [J]. Org. Electron., 2008, 9 (2):267-272.