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

fYear

2014

fDate

1-4 Sept. 2014

Firstpage

177

Lastpage

178

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Numerical Simulation of Optoelectronic Devices (NUSOD), 2014 14th International Conference on

Conference_Location

Palma de Mallorca

ISSN

2158-3234

Print_ISBN

978-1-4799-3681-6

Type

conf

DOI

10.1109/NUSOD.2014.6935414

Filename

6935414