Extending the limits of laser beam shaping for pv-cell manufacturing

I. Steiner; T. Mitra

doi:10.1117/12.931658

12 October 2012 Extending the limits of laser beam shaping for PV-cell manufacturing

I. Steiner, T. Mitra

Author Affiliations +

Proceedings Volume 8473, Laser Material Processing for Solar Energy; 84730N (2012) https://doi.org/10.1117/12.931658
Event: SPIE Solar Energy + Technology, 2012, San Diego, California, United States

Abstract

Laser processing of photovoltaic cells enables the manufacturing of high-efficiency cells and offers opportunities to cut down costs. Structuring of selective emitters or laser fired contacts requires precise laser beam shaping. In this paper we identify key design parameters for industrial applications of Gaussian-to-top hat converters. We derive the physical limits for top hats close to the diffraction limited and compare the performance of actual beam shapers to these limits. Additionally we present details and first measurements of our improved solution to scan a 50μm top hat, allowing to structure a 156mm wafer in a few seconds.

Citation Download Citation

I. Steiner and T. Mitra "Extending the limits of laser beam shaping for PV-cell manufacturing", Proc. SPIE 8473, Laser Material Processing for Solar Energy, 84730N (12 October 2012); https://doi.org/10.1117/12.931658

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE