High Efficiency Blue Phosphorescent Organic Lighting-emitting Diodes with Novel Anode Structure
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第6期
论文作者：QU Shaojun ZHU Dianxiang ZHOU Guoping
文章页码：1251 - 1255
摘 要：High-efficiency blue electrophosphorescent organic light-emitting devices employing MoO 3 used as hole injection layer（HIL） and MoO 3 doped N,N-dicarbazoly-3,5-benzene（mCP） as hole transport layer（HTL） were demonstrated. The blue OLED with the novel anode structure and TAPC used as electron blocking layer show a low turn-on voltage of 2.4 V, a maximum power efficiency of 33.6 lm/W at 3.1 V and 25 lm/W with 1 000 cd/m2at 3.8 V. It is also found that the efficiency of the devices is dependent on the different EBL materials. This is may because of relationship with the charge mobility and the triplet energy level of EBL materials. The device efficiency is determined by the charge balance which plays an important role.
QU Shaojun1，ZHU Dianxiang2，ZHOU Guoping3
1. College of Mechanical and Electronic Engineering,Nanjing Forestry University2. College of Wood Science and Technology,Nanjing Forestry University3. College of Information Science and Technology,Nanjing Forestry University
摘 要：High-efficiency blue electrophosphorescent organic light-emitting devices employing MoO 3 used as hole injection layer（HIL） and MoO 3 doped N,N-dicarbazoly-3,5-benzene（mCP） as hole transport layer（HTL） were demonstrated. The blue OLED with the novel anode structure and TAPC used as electron blocking layer show a low turn-on voltage of 2.4 V, a maximum power efficiency of 33.6 lm/W at 3.1 V and 25 lm/W with 1 000 cd/m2at 3.8 V. It is also found that the efficiency of the devices is dependent on the different EBL materials. This is may because of relationship with the charge mobility and the triplet energy level of EBL materials. The device efficiency is determined by the charge balance which plays an important role.
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