한국표면공학회지 (50권5호 405-410)
Impedance Characteristics of Blue Fluorescent OLED According to Elapsed Time
경과 시간에 따른 청색 형광 OLED의 Impedance 특성
공도훈;양재웅;주성후;
Kong, Do-Hoon;Yang, Jae-Woong;Ju, Sung-Hoo;
대진대학교 신소재공학과;
Department of Advanced Materials Science & Engineering, Daejin University;
In order to study current-voltage-luminance and impedance characteristics according to elapsed time, a blue fluorescent OLED was fabricated. The current density and luminance gradually decreased in accordance with elapsed time and did not emit light after 480 hours, and the threshold voltage increased as time elapsed. The Cole-Cole plot was a semicircular shape of a very large size at 2 V of the applied voltage below the threshold voltage, and the maximum value of the real number impedance did not change greatly from 9314.5 to
Organic light emitting display;Fluorescent;Impedance;Elapsed time;