The proposed project focuses on the investigation of novel high-stable monocrystalline perovskites for photosensing in ultraviolet, visible and alternatively in infrared region of electromagnetic radiation. Therefore the research will be targeted to explore a new type of leadhalide perovskite single crystals like “core-shell” type of crystal and doped standard type of monocrystals. The ability of sensing of as-prepared monocrystals will be characterized by method of temperature-modulated space-charge-limited currents, which enables us to analyse the density of charge carrier traps in bandgap of measured materials. The influence of different crystal diameters and different biases and/or frequencies applied on measured responses will be studied as well. At the end of the project, monocrystalline perovskites with higher long-term stability for photodetectors with sensing at low radiation intensities will be suggested.

Keywords
perovskite single crystals, photodetectors

20-29499Y

English

Pospíšil Jan, Ing., Ph.D. - principal person responsible

Materials Research Centre
- responsible department (8.4.2019 - not assigned)
Materials Research Centre
- beneficiary (8.4.2019 - not assigned)

GAVRANOVIĆ, S.; BLAHUT, J.; ZMEŠKAL, O.; POSPÍŠIL, J.; HARNA, V. In-situ thermal fabrication of photodetectors based on methylammonium lead bromide perovskite. AIP Conference Proceedings, 2023, vol. 2894, no. 2023, p. 1-9. ISSN: 1551-7616.
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POSPÍŠIL, J.; MARÁČKOVÁ, L.; ZMEŠKAL, O.; KOVALENKO, A. Universal approach for diffusion quantification applied to lead halide perovskite single crystals. Applied Physics A, 2023, vol. 129, no. 1, p. 1-8. ISSN: 0947-8396.
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HOMOLA, T.; POSPÍŠIL, J. Plasma-treatment applications for fabricating third-generation solar cells. In Plasma at the Nanoscale. Elsevier Inc. (Amsterdam). 2022. p. 137-166. ISBN: 978-0-323-89930-7.
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GAVRANOVIĆ, S.; BLAHUT, J.; ZMEŠKAL, O.; POSPÍŠIL, J.; ZHIVKOV, I. Charge density in MAPbBr3 perovskite: Application of thermomodulated SCLC. In Thermophysics 2021: 26th International Meeting of Thermophysics 2021. AIP conference proceedings. AIP Publishing, 2022. p. 020006-1 (020006-5 p.)ISBN: 978-0-7354-4365-5. ISSN: 0094-243X.
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GAVRANOVIĆ, S.; POSPÍŠIL, J.; ZMEŠKAL, O.; NOVÁK, V.; VANÝSEK, P.; ČÁSTKOVÁ, K.; CIHLÁŘ, J.; WEITER, M. Electrode Spacing as a Determinant of the Output Performance of Planar-Type Photodetectors Based on Methylammonium Lead Bromide Perovskite Single Crystals. ACS applied materials & interfaces, 2022, vol. 14, no. 17, p. 20159-20167. ISSN: 1944-8252.
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JANČÍK, J. BREAKING THE WALL OF PEROVSKITE SOLLAR CELLS PREPARATION. WROCLAW: Falling Walls, 2021.
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JANČÍK, J.; JANČÍK PROCHÁZKOVÁ, A.; SCHARBER, M.; KOVALENKO, A.; MÁSILKO, J.; SARICIFTCI, N.; KRAJČOVIČ, J.; WEITER, M. Microwave-Assisted Preparation of Organo-Lead Halide Perovskite structures for electronics. Brno: Nanocon, 2021.
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JANČÍK, J.; KRAJČOVIČ, J.; BRÜGGEMANN, O.; SALINAS, Y. Stability Enhancements on Methylammonium Lead-Based Perovskite Nanoparticles: the Smart Use of Host Matrices. ISRAEL JOURNAL OF CHEMISTRY, 2021, vol. 61, no. 1, p. 1-19. ISSN: 0021-2148.
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GAVRANOVIĆ, S.; POSPÍŠIL, J.; NOVÁK, V.; VANÝSEK, P. Perovskite Single Crystals for Energy Conversion of Solar Radiation. ECS Transaction, 2021, vol. 105, no. 1, p. 261-267. ISSN: 1938-6737.
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ZDRAŽIL, L.; SERGII, K.; LANGER, M.; AHMAD, R.; POSPÍŠIL, J.; ZMEŠKAL, O.; ALTOMARE, M.; OSVET, A.; ZBOŘIL, R.; SCHMUKI, P.; BRABEC, C.; OTYEPKA, M.; KMENT, Š. Transparent and Low-Loss Luminescent Solar Concentrators Based on Self-Trapped Exciton Emission in Lead-Free Double Perovskite Nanocrystals. ACS APPLIED ENERGY MATERIALS, 2021, vol. 4, no. 7, p. 6445-6453. ISSN: 2574-0962.
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SHEKARGOFTAR, M.; POSPÍŠIL, J.; KRATOCHVÍL, M.; VIDA, J.; SOUČEK, P.; HOMOLA, T. Low-Temperature and Rapid Deposition of an SnO2 Layer from a Colloidal Nanoparticle Dispersion for Use in Planar Perovskite Solar Cells. Energy Technology, 2021, vol. 9, no. 5, p. 1-7. ISSN: 2194-4288.
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SHEKARGOFTAR, M.; POSPÍŠIL, J.; DUGÁČEK, J.; WEITER, M.; HOMOLA, T. Surface Property Tuning of Methylammonium Lead Iodide by Plasma for Use in Planar Perovskite Solar Cells. ACS OMEGA, 2020, vol. 5, no. 29, p. 18384-18390. ISSN: 2470-1343.
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Responsibility: Pospíšil Jan, Ing., Ph.D.