【摘 要】
：
A series of white phosphorescent OLED devices with buffer layer and multiple dopant structure is investigated in order to obtain better electro-optic performanc
【机 构】
：
College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
论文部分内容阅读
A series of white phosphorescent OLED devices with buffer layer and multiple dopant structure is investigated in order to obtain better electro-optic performances and color stability. The color coordinate and color stability are related to the location of multiple dopants layer, and the optimized location can compensate for the change of the blue emission intensity under a high voltage and stabilize the spectrum. The electro-optic performances and color stability can be further improved by changing the composition and thickness of the buffer layer between the emitting layer and the electron transport layer. In device B2, the distance from multiple dopant layer to buffer layer is 2 nm and the thickness of buffer layer is 5 nm, the maximum luminance, current density, and power efficiency can reach 9091 cd/m2, 364.5 mA/cm2, and 26.74 lm/W, respectively. The variation of inteational commission on the illumination (CIE) coordinate of device B2 with voltage increasing from 4 V to 7 V is only (0.006, 0.004).
其他文献
不容忽视的十个植棉技术问题一、重茬田多在一块地多年种棉花，不利土壤养分的有效利用，并诱发病虫害的发生，呈现“一年好，两年差，三年多病少疙瘩（桃）”的状况。二、轻视基肥基肥施得
Three-dimensional (3D) printing technology is employed to improve the photovoltaic and photothermal conversion efficiency of dye-sensitized solar cell (DSC) mod
We present a qualitative and quantitative study of the magneto-thermoelectric effect of graphene.In the limit of impurity scattering length being much longer th
为分离苹果(Malus×domestica)和甜樱桃(Prunusavium)花粉S-决定子基因，本研究采用苹果自交亲和品种‘惠’(S2S9)及自交不亲和的‘国光’(S1S2)、‘红玉’(S7S9)以及甜樱桃自
Recently,an interesting family of quasiperiodic models with exact mobility edges (MEs) has been proposed (Phys.Rev.Lett.114 146601 (2015)).It is self-dual under
We study the behaviors of mean end-to-end distance and specific heat of a two-dimensional intrinsically curved semiflexible biopolymer with a hard-core excluded
抗坏血酸(L-ascorbic acid,AsA)又称维生素C,是动植物体内重要的非酶类抗氧化物质。AsA不仅能够参与植物的防御反应,抵御氧化胁迫损伤,而且还是许多关键酶的辅因子。L-半乳糖
看似平凡实奇崛,是《“夫妻井”的奉献》(见4月19日《新华社新闻稿》)中人物的最鲜明特色,这也是通讯具有感人力量之所在。说那一对对采油工夫妻平凡,的确他们文化水平不高,
We show that the secret key generation rate can be balanced with the maximum secure distance of four-state continuous-variable quantum key distribution (CV-QKD)