交流电激发下的聚合物PPV单层薄膜发光器件的电致发光

AC ELECTROLUMINESCENCE FROM SINGLE LAYER ORGANIC THIN FILM ELECTROLUMINESCENT DEVICES MADE OF POLYMER PPV

交流电激发下的聚合物ＰＰＶ单层薄膜发光器件的电致发光＊张凤玲ａ，ｂ）杨志敏ａ）徐征ａ）黄宗浩ｃ）徐长远ａ）王永生ａ）徐叙王容ａ，ｂ）ａ）（北方交通大学光电子技术研究所，北京１０００４４）ｂ）（天津理工学院材料物理研究所，天津３００１９１）ｃ）（东北师...

The polymer poly p phenylene vinylene(PPV) was prepared and constructed into single layer thin film electroluminescent devices as ITO/PPV/Al. AC electroluminescence was observed for the first time on our PPV single layer thin film EL devices at frequency 50Hz from 4V to 15V. The emission spectra were recorded by a Hitachi F4010 spectrophotometer and were compared with those driven by DC voltages. The relative emission intensities of two peaks in different AC voltages were measured. It suggested that the mechanism of AC electroluminescence need further study.