Effect of Laser Wavelength on Structure and Photoelectric Properties of a-Si:H Films Crystallized by Femtosecond Laser Pulses
| Autor: | D. V. Amasev, A.O. Dudnik, Mark V. Khenkin, R. Drevinskas, Pavel A. Forsh, Peter G. Kazansky, Andrey G. Kazanskii, Andrey V. Emelyanov, Martynas Beresna |
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| Rok vydání: | 2015 |
| Předmět: |
Amorphous silicon
Materials science Photon business.industry Physics::Optics Photoelectric effect Laser Electronic Optical and Magnetic Materials law.invention Condensed Matter::Materials Science chemistry.chemical_compound Wavelength Optics chemistry law Femtosecond Optoelectronics Thin film solar cell Physics::Atomic Physics Electrical and Electronic Engineering Crystallization business |
| Zdroj: | Journal of Nanoelectronics and Optoelectronics. 9:728-733 |
| ISSN: | 1555-1318 1555-130X |
| DOI: | 10.1166/jno.2014.1668 |
| Popis: | Femtosecond laser processing of hydrogenated amorphous silicon is a perspective method for thin film solar cells production. It allows to make local crystallization and surface texturing of the films which results in the enhancement of their light absorption and stability of parameters. Thickness of modified material depends strongly on a laser wavelength. However laser wavelength affects also other properties of the film. Therefore here we study structure, surface morphology and photoelectric properties of hydrogenated amorphous silicon films treated by femtosecond laser pulses of different photon energies, namely above, around and below the mobility gap of amorphous silicon. |
| Databáze: | OpenAIRE |
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