NDLI: Laser-formed stencils for printed silicon solar cells

Content Provider	IEEE Xplore Digital Library
Author	Cotter, J.E. Yao, G. Eggleston, B.
Copyright Year	2005
Description	Author affiliation: Center of Excellence in Silicon Photonics & Photovoltaics, New South Wales Univ., Sydney, NSW, Australia (Cotter, J.E.; Yao, G.; Eggleston, B.)
Abstract	In this paper, we demonstrate the utility of laser machining stainless steel stencils for printed silicon solar cells. Laser-formed stencils are potentially cheaper than foils and screens formed by lithographic processes and may have some advantage in terms of durability, and they may also have some advantage for alignment between stencil printed features and other laser processed features on the silicon wafer. The standard laser scribing tool used for buried contact solar cell fabrication at UNSW is capable of cutting features of less than 35 microns in stencil foils 80 microns thick. By serendipity, the scribing process converts the slag by-product to an iron compound that can be selectively etched, leaving clean, well-formed stencil features. The foils have proved to be printable, with reasonably well formed features in printed and fired pastes. Initial solar cells have demonstrated efficiencies of 13.5%.
Sponsorship	IEEE Electron Devices Soc. (USA)
Starting Page	1169
Ending Page	1172
File Size	929091
Page Count	4
File Format	PDF
ISBN	0780387074
ISSN	01608371
DOI	10.1109/PVSC.2005.1488346
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Photovoltaic cells Laser beam cutting Steel Etching Fingers Optical device fabrication Printing Laser beams Slag
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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