A Novel Transparent Cathode for OLEDs
We describe in this paper some preliminary experiments on a new transparent cathode for investigating full-color organic light-emitting diodes OLEDs in the future. Our study is focusing on transparent organic light-emitting diodes (TOLEDs) and stacked organic light-emitting diodes (SOLEDs). We use lanthanum hexa boride (LaB6), a well-known thermionic emitter with a rather low work function of 2.4-3.0 eV, as transparent cathode. Thin LaB6 films have been applied onto an ITO electrode, the film thicknesses varied between 120 and 200 nm. The light transmission depended on the film thickness ; minimum variation of the transmission as a function of wavelength was observed at a film thickness of 150 nm. The work function of the LaB6 films is about 2.6 eV.
OLED LaB6 Transparent Cathode
Zulun Lin Kangcheng Qi Xue Fan Qingxian Shi Jianjun Li Daniel den Engelsen
School of Opto-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
国际会议
上海
英文
139-142
2007-03-12（万方平台首次上网日期，不代表论文的发表时间）