Self-assembled nanostructuring of a-Si:H films with ultrashort light pulses

Author

Gecevicius, Mindaugas ; Beresna, Martynas ; Kazanskii, Andrey G. ; Kazansky, Peter G.

Author_Institution

Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK

fYear

2013

fDate

12-16 May 2013

Firstpage

1

Lastpage

1

Abstract

For several decades, hydrogenated amorphous silicon (a-Si:H) has been playing a significant role in the world´s production of photovoltaic modules. In this work, we investigate different types of modifications induced by a femtosecond laser in a-Si:H thin films. We demonstrate that several distinctive modification regimes with peculiar optical properties can be obtained in a narrow range of the laser pulse energies.

Keywords

amorphous semiconductors; elemental semiconductors; high-speed optical techniques; hydrogen; hydrogenation; laser beam effects; laser materials processing; nanofabrication; nanostructured materials; self-assembly; semiconductor growth; semiconductor thin films; silicon; Si:H; femtosecond laser modifications; hydrogenated amorphous silicon; laser pulse energies; peculiar optical properties; photovoltaic modules; self-assembled nanostructuring; thin films; ultrashort light pulses; Amorphous silicon; Films; Lasers; Measurement by laser beam; Microscopy; Pulsed laser deposition; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference

Conference_Location

Munich

Print_ISBN

978-1-4799-0593-5

Type

conf

DOI

10.1109/CLEOE-IQEC.2013.6801591

Filename

6801591