% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@PHDTHESIS{Kaienburg:873303,
author = {Kaienburg, Pascal},
title = {{Q}uantifying the {I}mpact of {I}nhomogeneity, {T}ransport
and {R}ecombination in {E}merging {T}hin-{F}ilm {S}olar
{C}ells},
volume = {481},
school = {Univ. Duisburg},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {FZJ-2020-00621},
isbn = {978-3-95806-440-9},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {vii, 258},
year = {2019},
note = {Dissertation, Univ. Duisburg, 2019},
abstract = {Thin-film solar cells represent the most relevant
technological extension of the photovoltaic energy
conversion landscape, which is currently dominated by
silicon tech-nology. However, the very concept of thin-film
solar cells brings inherent challenges. Firstly, the
deposition of thin-film solar cells with large aspect ratio
introduces inevitable lateral inhomogeneity in the
structure. Secondly, absorber films deposited from the gas
or liquid phase are of inferior electronic quality compared
to monocrystalline silicon technology, meaning that charge
carrierre combination is enhanced and charge transport is
slowed down. This thesis provides methodologies to identify
and assess critical parameters for the two major challenges
of inhomogeneous absorber layers and absorber layers with
low electronic quality. The presented concepts introduce
metrics that allow quantitatively evaluating and comparing
different materials or systems with respect to the given
phenomena. Thus, these concepts will contribute to the
continuous and structured technological progress of
thin-film solar cells. Specifically, a methodology is
presented to assess any detrimental impact of inhomogeneity
in the absorber film in the form of pinholes with regard to
the solar cell performance. Different experimentally tested
contact configurations turn out to behave qualitatively
similar but show major quantitative differences. With regard
to the electronic quality, a thorough analysis of the
influencing factors on the fill factor is conducted and a
material-based electronic quality factor is defined herein.
The electronic quality factor functions as a figure of merit
for the fill factor that reflects the interplay of charge
carrier transport and charge carrierre combination. By
providing a method to assess the electronic quality factor
of thin-film absorbers through basic characterization
methods, the study offers a widely applicable tool to
evaluate different materials or technologies in terms of
charge carrier collection. This approachis especially
valuable for tracking the progress of organic solar cells,
[...]},
cin = {IEK-5},
cid = {I:(DE-Juel1)IEK-5-20101013},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
url = {https://juser.fz-juelich.de/record/873303},
}