Synthesis and characterization of photosensible CH3NH3PbI3 and CH3NH3PbI3–x Cl x perovskite crystalline films
| Autor: | Ion Tiginyanu, Irina Plesco, V.V. Zalamai, L. Ghimpu, V. Postolache, G. F. Volodina |
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| Rok vydání: | 2017 |
| Předmět: |
Spin coating
Photoluminescence Materials science Mineralogy 02 engineering and technology Surfaces and Interfaces Methylammonium lead halide 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Surfaces Coatings and Films law.invention chemistry.chemical_compound Crystallography Tetragonal crystal system chemistry law Crystallization 0210 nano-technology Powder diffraction Perovskite (structure) Visible spectrum |
| Zdroj: | Surface Engineering and Applied Electrochemistry. 53:15-19 |
| ISSN: | 1934-8002 1068-3755 |
| Popis: | 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 A and c = 12.60 A. 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. |
| Databáze: | OpenAIRE |
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