摘要
采用旋涂法将一组带烷氧基的苯基蒎烯吡啶铱(Ⅲ)配合物(Ir(RO-pppy)3)磷光材料掺杂到PVK中,制作出了聚合物电致发光器件:ITO/PE-DOT:PSS(40 nm)/PVK0.7:PBD0.3:(x%.)Ir-complex(80 nm)/CsF(1.5 nm)/Mg:Ag(200 nm).实验结果表明,带有长烷氧基链配体的铱(Ⅲ)配合物能表现出更好的器件行为,当掺杂浓度为3.2%时,器件的最高发光效率达19.9 cd/A(7.8 lm/W,9.1V),CIE为(0.20,0.56);器件最大亮度为15700 cd/m2(8.4V).通过对这组铱(Ⅲ)配合物的光物理行为及电化学性能的研究,考察了主体材料与配合物之间的能级配置以及能量转移的机理.
A new family of Tris- （pinene-2-phenylpyridine） Iridium （Ⅲ） complexes attached alkoxy groups were doped in PVK and polymer devices ITO/PEDOT： PSS（40 nm）/PVK0.7： PBD0.3： （x %. ） Ir-complex（80 nm）/CsF（ 1.5 nm）/Mg： Ag（200 nm） were fabricated by spin-coating. The results indicated that the devices of the It-complex attached hexadecoxy groups exhibit better performance. The maximum luminance efficiency 19.9 cd/A （7.8 lm/W） at 9.1V was obtained with doping concentration of 3.2 %, CIE coordinates （ 0.20, 0.56）, and the maximum luminance of the devices was 15700 cd/m^2 at 8.4 V. Orbit alignment and energy transfer mechanism between the host material and dopam were studied by their photophysics and electrochemistry properties.
出处
《影像科学与光化学》
EI
CAS
CSCD
2008年第1期16-24,共9页
Imaging Science and Photochemistry
基金
北京市自然科学基金(2072017和KZ200711417017)
