TY - JOUR
T1 - Pulsed Laser Deposition of Cs2AgBiBr6
T2 - From Mechanochemically Synthesized Powders to Dry, Single-Step Deposition
AU - Rodkey, Nathan
AU - Kaal, Stan
AU - Sebastia-Luna, Paz
AU - Birkhölzer, Yorick A.
AU - Ledinsky, Martin
AU - Palazon, Francisco
AU - Bolink, Henk J.
AU - Morales-Masis, Monica
N1 - Funding Information:
The research leading to these results has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant agreement Nos. 834431 and 852722), from SOLAR-ERA.NET Cofund 2 PERDRY. SOLAR-ERA.NET is supported by the European Comission within the EU Framework Programme for Research and Innovation HORIZON 2020 (Cofund ERA-NET Action, N° 786483), the Spanish Ministry of Science, Innovation and Universities, PCI2019-111829-2, CEX2019-000919-M, and FPU18/01732, and the Comunitat Valenciana IDIFEDER/2018/061, PROMETEU/2020/077. The authors acknowledge the support of the Operational Programme Research, Development, and Education financed by the European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (Project Nos. CZ.02.1.01/0.0/0.0/16_019/0000760 SOLID21 and CzechNanoLab Research Infrastructure LM2018110). The authors thank Guus Rijnders and Gertjan Koster at UT for helpful discussions regarding PLD growth, Kaijian Zhu and Annemarie Huijser for PL discussions, and Mark Smithers for SEM imaging.
Publisher Copyright:
© 2021 The Authors. Published by American Chemical Society
PY - 2021/9/28
Y1 - 2021/9/28
N2 - Cs2AgBiBr6has been proposed as a promising lead-free and stable double perovskite alternative to hybrid and lead-based perovskites. However, the low solubility of precursors during wet synthesis, or the distinct volatility of components during evaporation, results in complex multistep synthesis approaches, hampering the widespread employment of Cs2AgBiBr6films. Here, we present pulsed laser deposition of Cs2AgBiBr6films as a dry, single-step and single-source deposition approach for high-quality film formation. Cs2AgBiBr6powders were prepared by mechanochemical synthesis and pressed into a solid target maintaining phase purity. Controlled laser ablation of the double perovskite target in vacuum and a substrate temperature of 200 °C results in the formation of highly crystalline Cs2AgBiBr6films. We discuss the importance of deposition pressure to achieve stoichiometric transfer and of substrate temperature during PLD growth to obtain high-quality Cs2AgBiBr6films with grain sizes > 200 nm. This work demonstrates the potential of PLD, an established technique in the semiconductor industry, to deposit complex halide perovskite materials while being compatible with optoelectronic device fabrication, such as UV and X-ray detectors.
AB - Cs2AgBiBr6has been proposed as a promising lead-free and stable double perovskite alternative to hybrid and lead-based perovskites. However, the low solubility of precursors during wet synthesis, or the distinct volatility of components during evaporation, results in complex multistep synthesis approaches, hampering the widespread employment of Cs2AgBiBr6films. Here, we present pulsed laser deposition of Cs2AgBiBr6films as a dry, single-step and single-source deposition approach for high-quality film formation. Cs2AgBiBr6powders were prepared by mechanochemical synthesis and pressed into a solid target maintaining phase purity. Controlled laser ablation of the double perovskite target in vacuum and a substrate temperature of 200 °C results in the formation of highly crystalline Cs2AgBiBr6films. We discuss the importance of deposition pressure to achieve stoichiometric transfer and of substrate temperature during PLD growth to obtain high-quality Cs2AgBiBr6films with grain sizes > 200 nm. This work demonstrates the potential of PLD, an established technique in the semiconductor industry, to deposit complex halide perovskite materials while being compatible with optoelectronic device fabrication, such as UV and X-ray detectors.
KW - UT-Hybrid-D
UR - http://www.scopus.com/inward/record.url?scp=85115910031&partnerID=8YFLogxK
U2 - 10.1021/acs.chemmater.1c02054
DO - 10.1021/acs.chemmater.1c02054
M3 - Article
AN - SCOPUS:85115910031
SN - 0897-4756
VL - 33
SP - 7417
EP - 7422
JO - Chemistry of materials
JF - Chemistry of materials
IS - 18
ER -