144 citations · 146 across the 2 of their papers we have counts for
2 papers
physics.app-ph2017★ 2 cited
Focus-Induced Photoresponse: a novel optoelectronic distance measurement technique
Oili Pekkola, Christoph Lungenschmied, Peter Fejes +11
We present the Focus-Induced Photoresponse (FIP) technique, a novel approach to optical distance measurement. It takes advantage of a widely-observed phenomenon in photodetector de…
physics.chem-ph2007★ 144 cited
Negative capacitance in organic semiconductor devices: bipolar injection and charge recombination mechanism
E. Ehrenfreund, C. Lungenschmied, G. Dennler +2
We report negative capacitance at low frequencies in organic semiconductor based diodes and show that it appears only under bipolar injection conditions. We account quantitatively…