標題: Influence of molecular dipoles on the photoluminescence and electroluminescence of dipolar spirobifluorene
作者: Chiang, Chih-Long
Tseng, Shih-Min
Chen, Chin-Ti
Hsu, Chao-Ping
Wen, Yuh-Sheng
Shu, Ching-Fong
應用化學系
Department of Applied Chemistry
公開日期: 1-一月-2007
摘要: Here we study a series of strongly fluorescent spirobifluorene compounds, red PhSPDCV and blue PhSPDPV, together with their spiro "dimer" analogs, BisPhSPDCV and blue BisPhSPDPV. We found that the fluorescence quantum yield as well as the OLED performance of the strongly dipolar red PhSPDCV decrease significantly in the "dimeric" analog BisPhSPDCV, but not in the weakly dipolar PhSPDPV and BisPhSPDPV. On the other hand, by doping the highly dipolar PhSPDCV to an isolated environment having low polarity Alq3 as the host matrix and avoiding the emission-quenching dipole from the neighboring molecules, very high performance of saturated yellow OLEDs has been obtained as well.
URI: http://hdl.handle.net/11536/146911
期刊: IDMC'07: PROCEEDINGS OF THE INTERNATIONAL DISPLAY MANUFACTURING CONFERENCE 2007
起始頁: 827
顯示於類別:會議論文