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@ARTICLE{Xie:821088,
author = {Xie, Jie and Danilov, Dmitri L. and Eichel, Rüdiger-A. and
Notten, Peter H. L.},
title = {{M}odeling 3{D}-{D}eposition of {T}i{O}$_{2}$ {U}sing a
{M}onte {C}arlo {C}hemical {K}inetics {A}pproach},
journal = {The journal of physical chemistry / C},
volume = {120},
number = {41},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2016-06332},
pages = {23823 - 23835},
year = {2016},
abstract = {3D microbatteries are indispensable to cope with the
increasing energy demand of autonomous smart devices. To
synthesize 3D microbatteries, step-conformal deposition of
thin films into 3D-substrates is vital, and low pressure
chemical vapor deposition (LPCVD) is a technique that is
capable of achieving this goal. In the present work, the
3D-deposition of TiO2 is investigated. It is shown that the
growth of anatase TiO2 can be characterized by two
rate-determining processes. In the diffusion-controlled
temperature region, the TiO2 films deposited into
3D-substrates lack step-conformity. In contrast, in the
kinetically controlled temperature region, uniform films
were deposited inside these microstructures. To understand
and improve the LPCVD deposition process, the experimental
results were simulated using a Monte Carlo chemical kinetics
(MCCK) model. Good agreement between the model and
experiments was achieved in all cases. It was found that the
deposition probability is low in the kinetically controlled
deposition region, while this probability was found to be
high in the diffusion-controlled region. It is also shown
that the reflections of precursor molecules inside the
trenches play an important role in achieving homogeneous 3D
deposition. To show the strength of the MCCK model, the
optimized deposition parameters are applied to predict the
film thickness profiles in narrower microstructures.},
cin = {IEK-9},
ddc = {540},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000386107600058},
doi = {10.1021/acs.jpcc.6b07594},
url = {https://juser.fz-juelich.de/record/821088},
}