Optical properties of CH3NH3PbX3 (X = halogen) and their mixed-halide crystals
In: Journal of materials science, Jg. 37 (2002), Heft 17, S. 3585-3587
Online
academicJournal
- print, 15 ref
Zugriff:
Thin films of microcrystalline CH3NH3PbX3 (X = halogen) as well as their mixed-halide crystals were fabricated by the spin-coating technique, and their optical properties were investigated. X-ray diffraction investigation revealed that CH3NH3PbBr3-x Clx (x=0-3) were successfully formed on glass substrate self-assembly and oriented with the a-axis. Owing to due to their large exciton binding energy, these materials showed clear exciton absorption and free-exciton emission in the visible region at room temperature. Replacing Br with Cl made it possible to control the band structure of these materials. As a result, the peak position of the exciton band shifted continuously towards blue region with increasing the Cl content in the films.
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Optical properties of CH3NH3PbX3 (X = halogen) and their mixed-halide crystals
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Autor/in / Beteiligte Person: | KITAZAWA, N ; WATANABE, Y ; NAKAMURA, Y |
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Zeitschrift: | Journal of materials science, Jg. 37 (2002), Heft 17, S. 3585-3587 |
Veröffentlichung: | Heidelberg: Springer, 2002 |
Medientyp: | academicJournal |
Umfang: | print, 15 ref |
ISSN: | 0022-2461 (print) |
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