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@ARTICLE{Hartnagel:878689,
author = {Hartnagel, Paula and Kirchartz, Thomas},
title = {{U}nderstanding the {L}ight‐{I}ntensity {D}ependence of
the {S}hort‐{C}ircuit {C}urrent of {O}rganic {S}olar
{C}ells},
journal = {Advanced theory and simulations},
volume = {3},
number = {10},
issn = {2513-0390},
address = {Weinheim},
publisher = {Wiley-VCH Verlag},
reportid = {FZJ-2020-03007},
pages = {2000116},
year = {2020},
abstract = {In organic solar cells, bimolecular recombination is a key
factor limiting the device performance and creating the need
for characterization. Light‐intensity‐dependent
short‐circuit current density measurements are a
frequently used tool to qualitatively analyze bimolecular
recombination in a device. When applying a 0D model,
bimolecular recombination is expected to reduce the
otherwise linear correlation of the short‐circuit current
density Jsc and the light intensity Φ to a sublinear trend.
It is shown by numerical simulations that the slope of the
Jsc–Φ curve is affected by the recombination mechanism
(direct or via traps), the spatial distribution of charge
carriers and—in thick solar cells—by space charge
effects. Only the combination of these effects allows proper
explanation of the different cases, some of which cannot be
explained in a simple 0D device model.},
cin = {IEK-5},
ddc = {050},
cid = {I:(DE-Juel1)IEK-5-20101013},
pnm = {121 - Solar cells of the next generation (POF3-121)},
pid = {G:(DE-HGF)POF3-121},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000570297100001},
doi = {10.1002/adts.202000116},
url = {https://juser.fz-juelich.de/record/878689},
}