紫外力的吸收和光致发光(PL )2,3 二度(9,9-dihexyl-9H-fluoren-2-yl ) 的系列 quinoxaline (Py ) , 2,3 二度(9,9-dihexyl-9H-fluoren-2-yl )-6,7-difluoroquinoxaline (F2Py ) 和 2,3 二度(9,9-dihexyl-9H-fluoren-2-yl )-5,6,7,8-tetrafluoroquinoxaline (F4Py ) 它是沸有结合的结构的分子的衍生物,被调查。为在沸的氟的符号助色团的影响的进一步的调查分子的电镀物品 optoelectronic 性质上的光材料,材料的电镀物品光( EL )特征被双层学习用 N 的器官的轻射出的二极管( OLED ),N'-Di-[( 1-naphthalenyl ) -N,N'-diphenyl]-(1,1'-biphenyl)-4,4'-diamine ( NPB )作为与常规真空免职方法搬运层( HTL )的一个洞。结果证明处于红与氟的符号取代者转移了的电影状态的材料的吸收和 PL 系列在分子配置增加了。OLED 的表演如下:在 5 V 的偏爱电压, Py 与共产国际歌 d'Eclairage (CIE ) 协调的委员会在 508 nm 射出一盏蓝绿色的灯(0.23, 0.43 ) 并且在 100 nm 的半最大值(FWHM ) 的完整的宽度。设备有刺激电压(在 1 cd/m ( 2 )的发光性定义为开车电压) 4.8 V ,有在 10 V 的 59 妈/厘米( 2 )的电流密度的 129 cd/m ( 2 )的发光性,并且在 5.4 V 的 0.18 lm/W 的最大的发光效率。F2Py 和 F4Py 在 5 V 在 570 nm 射出在 544 nm 达到顶点的一盏绿灯和一盏黄灯,与 CIE 坐标(0.38, 0.56 ) 并且(0.44, 0.49 ) ,并且 103 和 117 nm 的 FWHM 分别地。 F2Py 和 F4Py 设备有 4 和 2 V 的刺激电压,有在 10 V 的 100 和 880 妈/厘米( 2 )的电流密度的 557 和 3300 cd/m ( 2 )的发光性,并且在 7.6 V 的 0.22 lm/W 和在 2 V 的 0.53 lm/W 的最大的发光效率分别地。
The UV-Vis absorption and photoluminescence (PL) spectra of 2,3-bis(9,9-dihexyl-9H-fluoren-2-yl) quinoxaline (Py), 2,3-bis(9,9-dihexyl-9H-fluoren-2-yl)-6,7-difluoroquinoxaline (F2Py) and 2,3-bis(9,9- dihexyl-9H-fluoren-2-yl)-5,6,7,8-tetrafluoroquinoxaline (F4Py), which are fluorene molecular derivatives with conjugated structure, were investigated. For further investigation of the influences of fluorine suxochrome in fluorene molecular electroluminescent material on optoelectronic property, the electroluminescence (EL) characteristics of materials were studied by double-layer organic light-emitting diodes (OLEDs) using N,N'-Di-[(1-naphthalenyl)-N,N'-diphenyl]-(1,1'-biphenyl)-4,4'-diamine (NPB) as a hole transporting layer (HTL) with the conventional vacuum deposition method. The results showed that the absorption and PL spectra of materials in film state red shifted with fluorine substituenta increased in molecule configuration. The performance of OLEDs is as follows: at a bias voltage of 5 V, Py emitted a blue-green light at 508 nm with the Commission Internationale d'Eclairage (ClE) coordinates of (0.23, 0.43) and full width at half maximum (FWHM) of 100 nm. The device had a turn-on voltage (defined as the drive voltage at the luminance of 1 cd/m^2) of 4.8 V, a luminance of 129 cd/m^2 with a current density of 59 mA/cm^2 at 10 V, and a maximum luminous efficiency of 0.18 lm/W at 5.4 V. F2Py and F4Py emitted a green light peaking at 544 nm and a yellow light at 570 nm at 5 V, with the CIE coordinates of (0.38, 0.56) and (0.44, 0.49), and FWHM of 103 and 117 nm, respectively. The F2Py and F4Py devices had a turn-on voltage of 4 and 2 V, a luminance of 557 and 3300 cd/m^2 with a current density of 100 and 880 mA/cm^2 at 10 V, and a maximum luminous efficiency of 0.22 lm/W at 7.6 V and 0.53 lm/W at 2 V, respectively.