Synthesis and characterization of photosensible CH3NH3PbI3 and CH3NH3PbI3&ndash;xClx perovskite crystalline films

Pleşco (Jin) Irina; Postolache Vitalie; Volodina Galina; Zalamai Victor; Ghimpu Lidia; Tiginyanu Ion

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2020-10-02 12:49

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PLEŞCO (JIN), Irina, POSTOLACHE, Vitalie, VOLODINA, Galina, ZALAMAI, Victor, GHIMPU, Lidia, TIGINYANU, Ion. Synthesis and characterization of photosensible CH3NH3PbI3 and CH3NH3PbI3–xClx perovskite crystalline films. In: Surface Engineering and Applied Electrochemistry, 2017, nr. 1(53), pp. 15-19. ISSN 1068-3755. DOI: https://doi.org/10.3103/S1068375517010100

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Surface Engineering and Applied Electrochemistry

Numărul 1(53) / 2017 / ISSN 1068-3755 /ISSNe 1934-8002

Synthesis and characterization of photosensible CH₃NH₃PbI₃ and CH₃NH₃PbI_3–xCl_x perovskite crystalline films

DOI:https://doi.org/10.3103/S1068375517010100

Pag. 15-19

Pleşco (Jin) Irina¹, Postolache Vitalie¹, Volodina Galina², Zalamai Victor³, Ghimpu Lidia⁴, Tiginyanu Ion¹⁴

¹ Technical University of Moldova,
² Institute of Chemistry of the Academy of Sciences of Moldova,
³ Institute of Applied Physics, Academy of Sciences of Moldova,
⁴ Institute of the Electronic Engineering and Nanotechnologies "D. Ghitu" of the Academy of Sciences of Moldova

Disponibil în IBN: 16 decembrie 2017

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Methylammonium lead-halide perovskites are very promising for applications as solar light-harvesting materials. This paper presents a study on the methylammonium iodide and iodide-chloride perovskite films prepared by spin coating from a liquid precursor. The powder diffraction spectroscopy has detected 10 lattice plane reflections common to a perovskite of a tetragonal crystal structure. The calculated cell parameters are a = 8.85 Å and c = 12.60 Å. The preparation conditions and their impact on the crystallization process and film morphology are discussed. A red shift of photoluminescence bands at low temperatures was evidenced. A photoelectrical study of perovskite films has revealed their high sensibility to illumination, especially in the visible spectrum, which gives a hint on their applications in photovoltaics.

Cuvinte-cheie
methylammonium lead halide, organic-inorganic perovskite, photo-sensibility

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