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172283

Large-Area Polycrystalline Silicon Substrates Using Unidirectionally Solidified Metallurgical-Grade Silicon for Solar Cell Applications.

Article

Last updated: 04 Jan 2025

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Subjects

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Tags

Electronics and Communications Engineering

Abstract

Large area polycrystalline, silicon substrates were prepared by the unidirectional solidification of metallurgical silicon on graphite. The silicon was firest purified by continuous heating with aqua-regia and then gettered with p < sub>2o5 at 1050 oC.
Substrates had elongated silicon grains, up to several centimeters long. X-ray diffraction and spreading resistance measurements showed that the substrates were 0.03 0hm. Cm, n-type of (110) orientation- p – n junction solar cells were fabricated by chemical vapor deposition of a Ti/Ag layer through a metal mask. A thin film of Sno2 was used as an AR coating. The cell efficiency under AM1 conditions, open circuit voltage, short circuit current, and fill factor were measured to be 9.75 %, 568 mv, 23 mA/cm2, and 0.78, respectively, for a 30 cm2 cell with AR  coating. Heat treatment in hydrogen at 900 oC was found to improve the cell efficiency by 15 – 20 % .

DOI

10.21608/bfemu.2021.172283

Authors

First Name

Roshdy

Last Name

Abderrassoul

MiddleName

A.

Affiliation

Telecommunications Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

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City

Mansoura

Orcid

-

Volume

14

Article Issue

2

Related Issue

24981

Issue Date

1989-12-01

Receive Date

1989-10-11

Publish Date

2021-05-25

Page Start

63

Page End

78

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 14_Issue 2_Pages 63-78.pdf

PDF . 1.2MB

Link

https://bfemu.journals.ekb.eg/article_172283.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=172283

Order

11

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Large-Area Polycrystalline Silicon Substrates Using Unidirectionally Solidified Metallurgical-Grade Silicon for Solar Cell Applications.

Details

Type

Article

Created At

22 Jan 2023