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@ARTICLE{Wang:1049006,
author = {Wang, Yanxue and Perea-Puente, Sinuhé and Le Corre,
Vincent M. and Wu, Zhenni and Sytnyk, Mykhailo and These,
Albert and Zhang, Jiyun and Li, Chaohui and Lüer, Larry and
Hauch, Jens and Brabec, Christoph and Peters, Ian Marius},
title = {{H}ybrid {L}earning {E}nables {R}eproducible $\>24\%$
{E}fficiency in {A}utonomously {F}abricated {P}erovskites
{S}olar {C}ells},
journal = {Advanced energy materials},
volume = {16},
number = {4},
issn = {1614-6832},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2025-05101},
pages = {e04340},
year = {2026},
abstract = {Achieving high-performance perovskite solar cells (PSCs)
with satisfactory reproducibility remains a major challenge
due to their intrinsic susceptibility to processing
variations and environmental fluctuations. To address this
challenge, this study introduces an autonomous optimization
framework that integrates hybrid machine learning and
high-throughput experimentation with modified gradient
ascent methods to optimize fabrication processes and
minimize experimental variances. The framework successfully
maps the complex, non-linear interdependencies between
fabrication parameters and reveals the critical decoupling
of photovoltaic metrics. Optimization across seven rounds
and 144 parameter sets results in pronounced power
conversion efficiency (PCE) and reproducibility enhancement
on the platform. The optimized procedure delivers champion
devices achieving PCEs exceeding $24\%,$ surpassing the
experience manual operator performance $(20.6\%$ PCE, CV
$>25\%)$ and reducing the coefficient of variation (CV) to
below $4.7\%,$ with improvements consistently validated
across independent trials. This work offers a practical
strategy for improving PSC performance and reproducibility,
while laying a foundation for scalable manufacturing and
accelerated materials development.},
cin = {IET-2},
ddc = {050},
cid = {I:(DE-Juel1)IET-2-20140314},
pnm = {1213 - Cell Design and Development (POF4-121)},
pid = {G:(DE-HGF)POF4-1213},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001621234500001},
doi = {10.1002/aenm.202504340},
url = {https://juser.fz-juelich.de/record/1049006},
}