Determination of Surface Recombination Velocities at Contacts in Organic Semiconductor Devices Using Injected Carrier Reservoirs

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Oskar J. Sandberg, Simon Sandén, Anton Sundqvist, Jan-Henrik Smått, Ronald Österbacka
Publication year: 2017
Journal: Physical Review Letters
Journal acronym: PHYS REV LETT
Volume number: 118
Issue number: 7
Number of pages: 5
ISSN: 0031-9007


A method to determine surface recombination velocities at collecting contacts in interface-limited organic semiconductor devices, based on the extraction of injected carrier reservoirs in a single-carrier sandwich-type structure, is presented. The analytical framework is derived and verified with drift-diffusion simulations. The method is demonstrated on solution-processed organic semiconductor devices with hole-blocking TiO2/organic and SiO2/organic interfaces, relevant for solar cell and transistor applications, respectively.


Electric contacts, Hybrid solar cell, Organic electronics, solar cells

Last updated on 2020-08-08 at 06:45