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171270

Improvement of Epitaxial Silicon Solar Cells on Upgraded Metallurgical Silicon by Heat Treatment.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Electronics and Communications Engineering

Abstract

 Metallurgical - grade silicon upgraded by aqua - regia extraction was unidirectionally solidified on graphite to yield large - area large - grain substrates. The concentration of impurities in the silicon substrates was measured using the atomic absorption technique. Epitaxial silicon layers were deposited on the metallurgical silicon substrate by the thermal reduction of trichlorosilane. Heat treatment in an inert atmosphere was found to improve the characteristics of the solar cells, presumably due to the diffusion of metallic impurities in the substrate and the epitaxial layers to the grain boundaries. Large - area (more than 30 cm) solar cells, having an air mass one (AM1) photovoltaic conversion efficiency of 9%, were prepared by depositing a p – n epitaxially on to the metallurgical silicon substrate. The solar cells were characterized by darkcurrent – voltage, illuminated current – voltage , spectral response and minority carrier diffusion length measurements, and SEM and EBIC (electron - beam induced current) techniques,
The effect of heat treatment an these parameters was studied. 

DOI

10.21608/bfemu.2021.171270

Authors

First Name

Roshdy

Last Name

Abderrassoul

MiddleName

A.

Affiliation

Electronic Engineering Department., El-Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

15

Article Issue

2

Related Issue

24852

Issue Date

1990-12-01

Receive Date

1990-10-11

Publish Date

2021-05-22

Page Start

114

Page End

129

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 15_Issue 2_Pages 114-129.pdf

PDF . 133.9kB

Link

https://bfemu.journals.ekb.eg/article_171270.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=171270

Order

15

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Improvement of Epitaxial Silicon Solar Cells on Upgraded Metallurgical Silicon by Heat Treatment.

Details

Type

Article

Created At

22 Jan 2023