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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/22485

Title: Efficiency enhancement of i-PERC solar cells by implementation of a laser doped selective emitter
Authors: Hallam, Brett
Uruena, Angel
Russell, Richard
Aleman, Monica
Abbott, Malcolm
Dang, Chi
Wenham, Stuart
Tous, Loic
Poortmans, Jef
Issue Date: 2015
Abstract: In this work, we present the incorporation of a laser doped selective emitter into the i-PERC platform at Imec using large area magnetically confined boron-doped Czochralski grown silicon wafers. Cells were fabricated with self-aligned plated n-type contacts with a comparison between the use of a homogenous emitter with contact openings formed by picosecond laser ablation and a selective emitter formed by laser doping with a mode-locked UV laser using various processing speeds. Without modification to other processes in the i-PERC platform, improvements in efficiency of approximately 0.4% absolute were obtained with the inclusion of the selective emitter structure through improvements in open circuit voltage, fill factor and reduced series resistance. This resulted in peak efficiencies of 20.5% using a processing speed for laser doping of 5 m/s. (C) 2014 Elsevier B.V. All rights reserved.
Notes: [Hallam, Brett; Abbott, Malcolm; Wenham, Stuart] Univ New S Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia. [Uruena, Angel; Russell, Richard; Aleman, Monica; Dang, Chi; Tous, Loic; Poortmans, Jef] IMEC, B-3001 Louvain, Belgium. [Hallam, Brett; Uruena, Angel; Dang, Chi; Tous, Loic; Poortmans, Jef] Katholieke Univ Leuven, B-3000 Louvain, Belgium. [Poortmans, Jef] UHasselt, B-3590 Diepenbeek, Hasselt, Belgium.
URI: http://hdl.handle.net/1942/22485
DOI: 10.1016/j.solmat.2014.11.028
ISI #: 000349728100012
ISSN: 0927-0248
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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