Details
Original language | English |
---|---|
Number of pages | 12 |
Journal | Particle and Particle Systems Characterization |
Early online date | 2 Sept 2024 |
Publication status | E-pub ahead of print - 2 Sept 2024 |
Abstract
Hybrid Perovskite materials have gone through an astonishing development due to their unique optoelectronic behavior, leading to the creation of a wide range of synthetic strategies. As the materials’ surface is found to play a crucial role with respect to the properties, e.g. hydration, stability and carrier mobilities, considerable efforts have been made to optimize the surface through various approaches. Especially the passivation of the perovskite surface attracted a lot of attention in this field, often resulting in more complex, multi-step synthetic processes. In this study, a simple one-step aerosol-assisted synthetic approach is presented to obtain thiocyanate (SCN) passivated single-crystal MAPbBr3 microcrystals. To elucidate the role of the additive in the crystallization process, mixed (pseudo-)halide precursors are systematically investigated. The as processed, passivated microcrystals exhibit enhanced stability and charge carrier lifetimes. Additionally, a decrease in surface photovoltage, attributed to the presence of the SCN additive, is observed. Furthermore, the aerosol process is further developed resulting in a novel binary system containing MAPbBr3-SCN perovskite microcrystals and Au nanostructures. This system serves as a promising model for further investigations into potential interactions between plasmonic and semiconducting materials, with initial results indicating prolonged charge carrier lifetimes.
Keywords
- Au nanoparticles, crystallization kinetics, hybrid perovskite microcrystals, one-step synthesis, surface passivation
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Particle and Particle Systems Characterization, 02.09.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - One-Step Aerosol Synthesis of Thiocyanate Passivated Hybrid Perovskite Microcrystals
T2 - Impact of (Pseudo-)Halide Additives on Crystallization and Access to a Novel Binary Model
AU - Bahnmüller, Ulrich J.
AU - Krysiak, Yaşar
AU - Seewald, Tobias
AU - Yalçinkaya, Yenal
AU - Pluta, Denis
AU - Schmidt-Mende, Lukas
AU - Weber, Stefan A.L.
AU - Polarz, Sebastian
N1 - Publisher Copyright: © 2024 The Author(s). Particle & Particle Systems Characterization published by Wiley-VCH GmbH.
PY - 2024/9/2
Y1 - 2024/9/2
N2 - Hybrid Perovskite materials have gone through an astonishing development due to their unique optoelectronic behavior, leading to the creation of a wide range of synthetic strategies. As the materials’ surface is found to play a crucial role with respect to the properties, e.g. hydration, stability and carrier mobilities, considerable efforts have been made to optimize the surface through various approaches. Especially the passivation of the perovskite surface attracted a lot of attention in this field, often resulting in more complex, multi-step synthetic processes. In this study, a simple one-step aerosol-assisted synthetic approach is presented to obtain thiocyanate (SCN) passivated single-crystal MAPbBr3 microcrystals. To elucidate the role of the additive in the crystallization process, mixed (pseudo-)halide precursors are systematically investigated. The as processed, passivated microcrystals exhibit enhanced stability and charge carrier lifetimes. Additionally, a decrease in surface photovoltage, attributed to the presence of the SCN additive, is observed. Furthermore, the aerosol process is further developed resulting in a novel binary system containing MAPbBr3-SCN perovskite microcrystals and Au nanostructures. This system serves as a promising model for further investigations into potential interactions between plasmonic and semiconducting materials, with initial results indicating prolonged charge carrier lifetimes.
AB - Hybrid Perovskite materials have gone through an astonishing development due to their unique optoelectronic behavior, leading to the creation of a wide range of synthetic strategies. As the materials’ surface is found to play a crucial role with respect to the properties, e.g. hydration, stability and carrier mobilities, considerable efforts have been made to optimize the surface through various approaches. Especially the passivation of the perovskite surface attracted a lot of attention in this field, often resulting in more complex, multi-step synthetic processes. In this study, a simple one-step aerosol-assisted synthetic approach is presented to obtain thiocyanate (SCN) passivated single-crystal MAPbBr3 microcrystals. To elucidate the role of the additive in the crystallization process, mixed (pseudo-)halide precursors are systematically investigated. The as processed, passivated microcrystals exhibit enhanced stability and charge carrier lifetimes. Additionally, a decrease in surface photovoltage, attributed to the presence of the SCN additive, is observed. Furthermore, the aerosol process is further developed resulting in a novel binary system containing MAPbBr3-SCN perovskite microcrystals and Au nanostructures. This system serves as a promising model for further investigations into potential interactions between plasmonic and semiconducting materials, with initial results indicating prolonged charge carrier lifetimes.
KW - Au nanoparticles
KW - crystallization kinetics
KW - hybrid perovskite microcrystals
KW - one-step synthesis
KW - surface passivation
UR - http://www.scopus.com/inward/record.url?scp=85202927514&partnerID=8YFLogxK
U2 - 10.1002/ppsc.202400132
DO - 10.1002/ppsc.202400132
M3 - Article
AN - SCOPUS:85202927514
JO - Particle and Particle Systems Characterization
JF - Particle and Particle Systems Characterization
SN - 0934-0866
ER -