Title :
Compensation for RC-effects in organic photodiodes with large sheet resistances
Author :
Kettlitz, Siegfried W. ; Mescher, Jan ; Lemmer, Uli
Author_Institution :
Karlsruhe Inst. of Technol., Karlsruhe Inst. of TechnologyLight Technol. Inst., Karlsruhe, Germany
Abstract :
Transient measurements on semiconductor devices are distorted by parasitic effects due to the geometric capacitance of the device and the impedance of the attached measurement circuit. Together they form an RC-circuit. Ideally, the transient decay of the pulse response generated by such an RC-circuit follows an exponential function. We investigate the differential equations of the case of an oblong rectangular photodiode with significant sheet resistance of one electrode. We find that under a specific illumination profile the ideal RC-decay can be obtained which is an useful result for RC-compensation in organic photodiodes.
Keywords :
RC circuits; electrical resistivity; integrated optoelectronics; lighting; photodiodes; RC-circuit; RC-effects compensation; geometric capacitance; impedance; large sheet resistances; measurement circuit; oblong rectangular photodiode; organic photodiodes; parasitic effects; pulse response; semiconductor devices; sheet resistance; transient decay; Electrical resistance measurement; Electrodes; Lighting; Photodiodes; Resistance; Shape; Transient analysis;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices (NUSOD), 2014 14th International Conference on
Conference_Location :
Palma de Mallorca
Print_ISBN :
978-1-4799-3681-6
DOI :
10.1109/NUSOD.2014.6935414
