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Simulation of 20.96% Efficiency n-type Czochralski UMG Silicon Solar Cell
Author(s) -
Peiting Zheng,
Fiacre Rougieux,
Chris Samundsett,
Xinbo Yang,
Yimao Wan,
J. Degoulange,
R. Einhaus,
P. Rivat,
Daniel Macdonald
Publication year - 2016
Publication title -
energy procedia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.474
H-Index - 81
ISSN - 1876-6102
DOI - 10.1016/j.egypro.2016.07.124
Subject(s) - materials science , common emitter , silicon , getter , solar cell , optoelectronics , carrier lifetime
In this paper, we present the 3D simulation of>20% efficiency solar cells using n-type 100% Upgraded-Metallurgical Grade (UMG) Czochralski (CZ) silicon and Electronic Grade (EG) Float Zone (FZ) fabricated using the same process. The cells have a passivated emitter rear locally diffused (PERL) structure, with an etch-back approach on the rear to maintain high bulk lifetime in the cells via phosphorus gettering. Simulation ofthe power losses of both devices are analysed as a function of measured material and cell parameters, including minority carrier lifetime, reflectance, contact resistivity and recombination parameters of the diffused and non-diffused surfaces

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