A Fully Diarylmethylene-Bridged Triphenylamine Derivative as Novel Host for Highly Efficient Green Phosphorescent OLEDs
摘要:
A fully diarylmethylene-bridged triphenylamine derivative is efficiently synthesized. It has an almost planar triphenylamine (TPA) skeleton and exhibits excellent thermal and morphological stability. Devices with the novel TPA derivative as host material and Ir(ppy)(3) as triplet emitter show a maximum current efficiency of 83.5 cd/A and a maximum power efficiency of 71.4 Im/W for green electrophosphorescence.
Novel D-π-A organic sensitizers containing diarylmethylene-bridged triphenylamine and different spacers for solar cell application
作者:Fei Wu、Shangbi Zhao、Lawrence Tien Lin Lee、Min Wang、Tao Chen、Linna Zhu
DOI:10.1016/j.tetlet.2015.01.156
日期:2015.3
planar core structure is a potential donor moiety for DSSCs. In this work, three novel D-π-A organicdyes TB-1, TB-2, and TB-3, containing diarylmethylene-bridged triphenylamine as the donor moiety, cyanoacrylic acid as the acceptor, and thiophene, benzene or furan as the π-spacers were synthesized and characterized for applications in dye-sensitized solar cells (DSSCs). Their photophysical, electrochemical
具有几乎平面的核心结构的桥连三苯胺是DSSC的潜在供体部分。在这项工作中,三种新颖的D-π-A有机染料TB-1,TB-2和TB-3,以二芳基亚甲基桥连的三苯胺为供体部分,氰基丙烯酸为受体,并以噻吩,苯或呋喃为载体。合成了π-间隔基,并表征了其在染料敏化太阳能电池(DSSC)中的应用。研究了它们的光物理,电化学和光伏性质,比较了三苯胺供体的性能,并评估了不同的π-间隔基的作用。结果表明,与非平面的三苯胺供体相比,平面度更高的桥连TPA可以提供更好的电荷转移过程,从而具有更高的性能。另一方面,在这些化合物中 与该分子系统中的苯键相比,噻吩键和呋喃键都表现出更好的平面化和电子离域化。因此,染料TB-1和TB-3显示出更高的IPCE和J sc值。考虑到染料TB-3的较大V oc,因此它优于其他两种敏化剂,表现出3.81%的功率转换效率,在模拟AM 1.5辐射(100 mW)下的J sc为7.54 mA
ORGANIC COMPOUND, EL DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC APPLIANCE, LIGHTING DEVICE, AND ELECTRONIC DEVICE
申请人:SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
公开号:US20210395245A1
公开(公告)日:2021-12-23
An object is to provide an organic compound with a low refractive index. Alternatively, a novel organic compound with a low refractive index and an electron-donating property is provided. Alternatively, an EL device with high emission efficiency is provided. An organic compound having an arylamine skeleton including a fluorine atom or an acridine skeleton including a fluorine atom and an EL device using the organic compound are provided. The EL device preferably includes a hole-injection layer containing the organic compound having an arylamine skeleton including a fluorine atom or an acridine skeleton including a fluorine atom and a substance showing an electron-accepting property with respect to the organic compound.
Electronic device, light-emitting device, electronic appliance, and lighting device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US10950805B2
公开(公告)日:2021-03-16
An electronic device with high outcoupling efficiency or a high light-trapping effect is provided.
The electronic device includes a first layer and a second layer between a first electrode and a second electrode, the first layer is included between the first electrode and the second layer, the first layer includes a first organic compound and a first substance, the refractive index of a thin film of the first organic compound is higher than or equal to 1 and lower than or equal to 1.75, the first substance has an electron-accepting property, and the second layer has a function of emitting or absorbing light.
Star-Shaped Oligotriarylamines with Planarized Triphenylamine Core: Solution-Processable, High-<i>T</i><sub>g</sub> Hole-Injecting and Hole-Transporting Materials for Organic Light-Emitting Devices
作者:Zuoquan Jiang、Tengling Ye、Chuluo Yang、Dezhi Yang、Minrong Zhu、Cheng Zhong、Jingui Qin、Dongge Ma
DOI:10.1021/cm1018585
日期:2011.2.8
optoelectronic properties can be modulated by the peripheral triarylamine groups. For example, FATPA-T with triphenylamine peripheries shows the significantly red-shifted absorption and emission, as well as the small band gap as compared to FATPA-Cz with carbazole peripheries. Double-layer Alq3-emitting OLEDsusing FATPA-T or FATPA-Cz as hole-transport layer by spin-coating method were fabricated, and the
Electronic Device, Light-Emitting Device, Electronic Appliance, and Lighting Device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20200176692A1
公开(公告)日:2020-06-04
An electronic device with high outcoupling efficiency or a high light-trapping effect is provided.
The electronic device includes a first layer and a second layer between a first electrode and a second electrode, the first layer is included between the first electrode and the second layer, the first layer includes a first organic compound and a first substance, the refractive index of a thin film of the first organic compound is higher than or equal to 1 and lower than or equal to 1.75, the first substance has an electron-accepting property, and the second layer has a function of emitting or absorbing light.