Selective Femtosecond Laser Lift-off Process for Scribing in Thin-film Photovoltaics
نویسندگان
چکیده
منابع مشابه
Laser applications in thin - film photovoltaics
We review laser applications in thin-film photovoltaics (thin-film Si, CdTe, and Cu(In,Ga)Se2 solar cells). Lasers are applied in this growing field to manufacture modules, to monitor Si deposition processes, and to characterize opto-electrical properties of thin films. Unlike traditional panels based on crystalline silicon wafers, the individual cells of a thin-film photovoltaic module can be ...
متن کاملSELECTIVE UV-LASER PROCESSING FOR LIFT-OFF OF GaN THIN FILMS FROM SAPPHIRE SUBSTRATES
Gallium nitride (GaN) thin films on sapphire substrates were successfully separated and transferred onto Si substrates by pulsed UVlaser processing. A single 600 mJ/cm, 38 ns KrF excimer laser pulse was directed through the transparent substrate to induce a rapid thermal decomposition of the GaN at the GaN/sapphire interface. The decomposition yields metallic Ga and N2 gas that allows separatio...
متن کاملThin-film III-V solar cells using epitaxial lift-off
Epitaxial lift-off is used to create thin-film III-V solar cells without sacrificing the GaAs wafer. It is based on selective etching of an AlAs release layer between the wafer and the cell structure using an HF solution. The wafer can be reused for subsequent deposition runs thereby reducing the cost of the cells. The thin-film cell can be transferred to any new carrier, e.g. glass, plastic, s...
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ژورنال
عنوان ژورنال: Journal of Laser Micro/Nanoengineering
سال: 2015
ISSN: 1880-0688
DOI: 10.2961/jlmn.2015.03.0007