Beyond Lead Halide Perovskites: Crystal Structure, Bandgaps, Photovoltaic Properties and Future Stance of Lead-Free Halide Double Perovskites

V Kumar, A Kathiravan, MA Jhonsi - Nano Energy, 2024 - Elsevier
Metal halide perovskites are an appealing class of materials for next-generation photovoltaic
applications. The certified power conversion efficiency of lead-perovskite based tandem …

2D/3D Hybrid Cs2AgBiBr6 Double Perovskite Solar Cells: Improved Energy Level Alignment for Higher Contact‐Selectivity and Large Open Circuit Voltage

MT Sirtl, R Hooijer, M Armer, FG Ebadi… - Advanced Energy …, 2022 - Wiley Online Library
Since their introduction in 2017, the efficiency of lead‐free halide perovskite solar cells
based on Cs2AgBiBr6 has not exceeded 3%. The limiting bottlenecks are attributed to a low …

Low Temperature Optical Properties of Novel Lead‐Free Cs2NaFeCl6 Perovskite Single Crystals

M Armer, P Dörflinger, A Weis… - Advanced Photonics …, 2023 - Wiley Online Library
Lead‐free double perovskites have attracted much attention as possible alternatives to lead
halide based perovskites in photovoltaic applications. However, to date only few double …

Understanding Method-Dependent Differences in Urbach Energies in Halide Perovskites

C Witt, K Schötz, A Köhler… - The Journal of Physical …, 2024 - ACS Publications
The Urbach energy as a measure of energetic disorder is an important characteristic of
semiconductors to evaluate their optoelectronic functionality. However, discrepancies occur …

Behind the scenes: insights into the structural properties of amide-based hole-transporting materials for lead-free perovskite solar cells

F Wolf, MT Sirtl, S Klenk, MHH Wurzenberger… - …, 2023 - pubs.rsc.org
State-of-the-art perovskite solar cells often employ expensive organic hole transporting
materials (HTM) such as spiro-OMeTAD, motivating the search for potential alternatives …

2D/3D Hybrid Cs₂AgBiBr₆ Double Perovskite Solar Cells: Improved Energy Level Alignment for Higher Contact‐Selectivity and Large Open Circuit Voltage

MT Sirtl, R Hooijer, M Armer… - Advanced Energy …, 2022 - tuprints.ulb.tu-darmstadt.de
Since their introduction in 2017, the efficiency of lead‐free halide perovskite solar cells
based on Cs₂AgBiBr₆ has not exceeded 3%. The limiting bottlenecks are attributed to a …

Machine Learning Based Screening of Double Perovskites for Photovoltaic Applications

E Landini - 2023 - pure.mpg.de
Materials based on the perovskite crystal structure, thanks to their variety of physical and
chemical properties, find many applications in materials science. In this work we adopt …

High-Quality Lead-Free Double Perovskite Single Crystals and their Optical Properties

MBM Armer - 2023 - opus.bibliothek.uni-wuerzburg.de
The presented thesis deals with the investigation of the characteristic physical properties of
lead-free double perovskites. For this purpose lead-free double perovskite single crystals …

[PDF][PDF] Supporting Information to

C Witt, K Schötz, M Kuhn, N Leupold… - … Properties of Powder … - epub.uni-bayreuth.de
The Urbach energy is a popular structural characteristic representing energetic disorder in
crystalline (eg, GaAs, Si, MAPbI3, CIGS) 1-2 and also semi-crystalline (such as organic) …