Surface texturing of multicrystalline silicon solar cells

• Autorzy: Dobrzański L. A. , Drygała A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of the paper is to elaborate a laser method of texturization multicrystalline silicon. The main reason for taking up the research is that most conventional methods used for texturization of monocrystalline silicon are ineffective when applied for texturing multicrystalline silicon. This is related to random distribution of grains of different crystalographic orientations on the surface of multicrystalline silicon. Design/methodology/approach: The topography of laser textured surfaces were investigated using ZEISS SUPRA 25 and PHILIPS XL 30 scanning electron microscopes and LSM 5 Pascal ZEISS confocal laser scanning microscope. The reflectance of produced textures was measured by Perkin-Elmer Lambda spectrophotometer with an integrating sphere. Electrical parameters of manufactured solar cells were characterized by measurements of I-V illuminated characteristics under standard AM 1.5 radiation. Findings: A method of texturing of multicrystalline silicon surface using Nd:YAG laser appeared to be much more independent on grains crystallographic orientation compared to conventional texturing methods. Laser texturing makes it possible to increase absorption of the incident solar radiation. Research limitations/implications: The major inconveniences are surface damage in the heat affected zone and depositing of foreign materials during laser treatment. Applied etching procedure allows for obtaining solar cells of high efficiency larger in relation to cells without texture. Originality/value: This paper demonstrates that laser texturing has been shown to have great potential as far as its implementation into industrial manufacturing process of solar cells is concerned.

Słowa kluczowe

EN

photovoltaics; solar cells; multicrystalline silicon; texturization; laser processing

PL

fotowoltaika; kolektor słoneczny; krzem multikrystaliczny; obróbka laserowa; teksturyzacja

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 1
• Strony: 77--82
• Opis fizyczny: Bibliogr. 27 poz., il., tab.

Twórcy

autor

Dobrzański L. A.

autor

Drygała A.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

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