TY - JOUR
T1 - Influence of capacitance effect on alternating-current organic light-emitting diodes
AU - Liu, Deang
AU - Teng, Feng
AU - Xu, Zheng
AU - Yang, Shengyi
AU - Quan, Shanyu
AU - He, Qingfang
AU - Wang, Yongsheng
AU - Xu, Xurong
PY - 2006/2
Y1 - 2006/2
N2 - The capacitance effect on ITO/poly[2-methoxy-5-[(2′-ethylhexyl)oxy]- p-phenylenevinylene] (MEH-PPV)/Al is studied by impedance spectroscopy technology, and the electroluminescence (EL) mechanism of this device driven by a sinusoidal alternating-current (AC) bias is suggested. By calculating the RC time constant of the device, we find that it is in good agreement with the lag-time between the EL and applied AC bias. Also, the influence of operating frequency on the EL intensity of the device is presented and it is concluded that a low operating frequency is good for a high device performance.
AB - The capacitance effect on ITO/poly[2-methoxy-5-[(2′-ethylhexyl)oxy]- p-phenylenevinylene] (MEH-PPV)/Al is studied by impedance spectroscopy technology, and the electroluminescence (EL) mechanism of this device driven by a sinusoidal alternating-current (AC) bias is suggested. By calculating the RC time constant of the device, we find that it is in good agreement with the lag-time between the EL and applied AC bias. Also, the influence of operating frequency on the EL intensity of the device is presented and it is concluded that a low operating frequency is good for a high device performance.
KW - D. Alternating-current bias
KW - D. Capacitance effect
KW - D. Frequency
KW - E. Electroluminescence
UR - http://www.scopus.com/inward/record.url?scp=31944433465&partnerID=8YFLogxK
U2 - 10.1016/j.ssc.2005.12.007
DO - 10.1016/j.ssc.2005.12.007
M3 - Article
AN - SCOPUS:31944433465
SN - 0038-1098
VL - 137
SP - 391
EP - 394
JO - Solid State Communications
JF - Solid State Communications
IS - 7
ER -