| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vyunov, Oleg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Materials based on barium titanate with colossal dielectric permittivity at high temperatures (Матеріали на основі титанату барію, що проявляють колосальну діелектричну проникність при високих температурах)
- 2020Synthesis and properties of ferroelectric semiconductors in the system (Ba1-x-ySryYx)TiO3
- 2019Synthesis and investigation of the properties of organic-inorganic perovskite films with non-contact optical methods
- 2018Synthesis and Properties of Condenser Materials with Colossal Permittivity Based on Complex Perovskites
- 2017Synthesis and Properties of Semiconductor BaTiO3 with a Colossal Dielectric Permittivity
- 2017Synthesis, Structure and Properties of Iron-Yttrium Garnets Joint Replacement with Aluminium and Manganese
- 2017Synthesis, Structure and Properties of Iron-Yttrium Garnets Joint Replacement with Aluminium and Manganese
- 2014Deposition of nanoscale LiPON films by high-frequency magnetron sputtering
- 2013Effect of oxidation temperature on the PTCR effect in the system of solid solutions (1-x)BaTiO3-x(Bi0.5K0.5)TiO3
- 2011Synthesis of materials based on (1-x)BaTiO3-x(Bi0.5K0.5)TiO3 exhibiting the PTCR effect
- 2011Synthesis and impedance measurements of ferroelectric semiconductors based on (1-x)BaTiO3-x(Bi0.5Na0.5)TiO3
- 2009Synthesis and properties of solid solutions (1–х–y)Pb(Zn₁⸝₃Nb₂⸝₃)O₃—xPbTiO₃—yBaTiO₃
- 2009Structural features of cubic solid solutions of the system ZrO₂—Y₂O₃—Fe₂O₃
- 2009Thermal stabilized ceramic heaters for work-support system of low-capacity automobile diesel engines of power unit
- 2008Influence of iron oxide (III) on degree of Y-ZrO₂ stabilization
- 2003Synthesis of microwave composite materials based on the MgO-TiO2-SiO2 system
Places of action
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document
Synthesis and investigation of the properties of organic-inorganic perovskite films with non-contact optical methods
Abstract
Presented in this work are the results of our study of the photoelectric properties of perovskite $CH_3NH_3PbI_{2.98}Cl_{0.02}$ films deposited on a glass substrate using the spin-coating method. The unit cell parameters of the perovskite are determined using x-ray diffractometry. It is shown that the film morphology represents a net of non-oriented needle-like structures with significant roughness and porosity. In order to investigate the properties of the films obtained, non-contact methods were used, such as transmission and reflection measurements and the measurements of the spectral characteristics of the small-signal surface photovoltage. The method of spectral characteristics of the low-signal surface photovoltage and the transmission method reveal information about the external quantum yield in the films studied and about the diffusion length of minority carriers in the perovskite films. As a result of this analysis, it has been established that the films obtained are naturally textured, and their bandgap is 1.59 eV. It is shown that in order to correctly determine absorption coefficient and the bandgap values, Urbach effect should be accounted for. Minority carriers' diffusion length is longer than the film thickness, which is equal to 400 nm. The films obtained are promising materials for solar cells.