Miniatura

Fitxers

562406.pdf (730.77 KB)

Tipus de document

Article

Versió

Versió acceptada

Data de publicació

2009

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/50487

Selective ablation of photovoltaic materials with UV laser sources for monolithic interconnection of devices based on a-Si:H

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

http://dx.doi.org/10.1016/j.mseb.2008.09.012

Resum

Lasers are essential tools for cell isolation and monolithic interconnection in thin-film-silicon photovoltaic technologies. Laser ablation of transparent conductive oxides (TCOs), amorphous silicon structures and back contact removal are standard processes in industry for monolithic device interconnection. However, material ablation with minimum debris and small heat affected zone is one of the main difficulty is to achieve, to reduce costs and to improve device efficiency. In this paper we present recent results in laser ablation of photovoltaic materials using excimer and UV wavelengths of diode-pumped solid-state (DPSS) laser sources. We discuss results concerning UV ablation of different TCO and thin-film silicon (a-Si:H and nc-Si:H), focussing our study on ablation threshold measurements and process-quality assessment using advanced optical microscopy techniques. In that way we show the advantages of using UV wavelengths for minimizing the characteristic material thermal affection of laser irradiation in the ns regime at higher wavelengths. Additionally we include preliminary results of selective ablation of film on film structures irradiating from the film side (direct writing configuration) including the problem of selective ablation of ZnO films on a-Si:H layers. In that way we demonstrate the potential use of UV wavelengths of fully commercial laser sources as an alternative to standard backscribing process in device fabrication.

Matèries

Energia fotovoltaica, Ablació amb làser, Pel·lícules fines, Fotònica

Matèries (anglès)

Photovoltaic power generation, Laser ablation, Thin films, Photonics

Citació

Col·leccions

Articles publicats en revistes (Física Aplicada)

Citació

MOLPECERES, Carlos, LAUZURICA, Sara, GARCÍA-BALLESTEROS, J. j., MORALES, M., GUADAÑO, G., OCAÑA, J. l., FERNÁNDEZ, Susana, GANDÍA, J. j., VILLAR, Fernando, NOS AGUILÀ, Oriol, BERTOMEU I BALAGUERÓ, Joan. Selective ablation of photovoltaic materials with UV laser sources for monolithic interconnection of devices based on a-Si:H. _Materials Science and Engineering B-Solid State Materials for Advanced Technology_. 2009. Vol. 159-160, núm. 18-22. [consulta: 21 de gener de 2026]. ISSN: 0921-5107. [Disponible a: https://hdl.handle.net/2445/50487]

Exportar metadades

JSON - METS

Compartir registre