19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils

David H. Levy; David E. Carlson; Kathryn C. Fisher; Joe V. Carpenter; Zachary Holman

doi:10.1109/PVSC.2018.8548118

19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils

David H. Levy, David E. Carlson, Kathryn C. Fisher, Joe V. Carpenter, Zachary Holman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

We present advances in a back-contact, back-junction metallization strategy using preformed multilayers of aluminum foil with a polymer insulator. The low-cost multilayer foils can be conductively bonded to substrates using nonconducting adhesives. The properties of this bonding process are discussed. We also demonstrate different cell structures based on multilayer foils. One approach leverages features of the multilayer foil to produce a self-aligned base contact, leading to a process with only a single alignment step. A champion silicon heterojunction cell with this foil metallization achieved 19.5% efficiency. We further show first results on a completely alignment-free back contact process enabled by multilayer foil metallization.

Original language	English (US)
Title of host publication	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2667-2672
Number of pages	6
ISBN (Electronic)	9781538685297
DOIs	https://doi.org/10.1109/PVSC.2018.8548118
State	Published - Nov 26 2018
Event	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States Duration: Jun 10 2018 → Jun 15 2018

Publication series

Name	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

Other

Other	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/Territory	United States
City	Waikoloa Village
Period	6/10/18 → 6/15/18

Keywords

Contacts
metallization
photovoltaic cells
silicon

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/PVSC.2018.8548118

Cite this

Levy, D. H., Carlson, D. E., Fisher, K. C., Carpenter, J. V., & Holman, Z. (2018). 19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 2667-2672). Article 8548118 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2018.8548118

19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils. / Levy, David H.; Carlson, David E.; Fisher, Kathryn C. et al.
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. p. 2667-2672 8548118 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Levy, DH, Carlson, DE, Fisher, KC, Carpenter, JV & Holman, Z 2018, 19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils. in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC., 8548118, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Institute of Electrical and Electronics Engineers Inc., pp. 2667-2672, 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States, 6/10/18. https://doi.org/10.1109/PVSC.2018.8548118

Levy DH, Carlson DE, Fisher KC, Carpenter JV, Holman Z. 19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc. 2018. p. 2667-2672. 8548118. (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC). doi: 10.1109/PVSC.2018.8548118

Levy, David H. ; Carlson, David E. ; Fisher, Kathryn C. et al. / 19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 2667-2672 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

@inproceedings{2eaaaa26914b42d3bb4c771b89924042,

title = "19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils",

abstract = "We present advances in a back-contact, back-junction metallization strategy using preformed multilayers of aluminum foil with a polymer insulator. The low-cost multilayer foils can be conductively bonded to substrates using nonconducting adhesives. The properties of this bonding process are discussed. We also demonstrate different cell structures based on multilayer foils. One approach leverages features of the multilayer foil to produce a self-aligned base contact, leading to a process with only a single alignment step. A champion silicon heterojunction cell with this foil metallization achieved 19.5% efficiency. We further show first results on a completely alignment-free back contact process enabled by multilayer foil metallization.",

keywords = "Contacts, metallization, photovoltaic cells, silicon",

author = "Levy, {David H.} and Carlson, {David E.} and Fisher, {Kathryn C.} and Carpenter, {Joe V.} and Zachary Holman",

note = "Funding Information: We thank Wendy Ahearn, Richard Topel, and Ted Zubil for fabrication and testing of the materials and cells used in this work. The information, data, or work presented herein is funded in part by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, under Award Number DE-EE0007538 Publisher Copyright: {\textcopyright} 2018 IEEE.; 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 ; Conference date: 10-06-2018 Through 15-06-2018",

year = "2018",

month = nov,

day = "26",

doi = "10.1109/PVSC.2018.8548118",

language = "English (US)",

series = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "2667--2672",

booktitle = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",

}

TY - GEN

T1 - 19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils

AU - Levy, David H.

AU - Carlson, David E.

AU - Fisher, Kathryn C.

AU - Carpenter, Joe V.

AU - Holman, Zachary

N1 - Funding Information: We thank Wendy Ahearn, Richard Topel, and Ted Zubil for fabrication and testing of the materials and cells used in this work. The information, data, or work presented herein is funded in part by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, under Award Number DE-EE0007538 Publisher Copyright: © 2018 IEEE.

PY - 2018/11/26

Y1 - 2018/11/26

N2 - We present advances in a back-contact, back-junction metallization strategy using preformed multilayers of aluminum foil with a polymer insulator. The low-cost multilayer foils can be conductively bonded to substrates using nonconducting adhesives. The properties of this bonding process are discussed. We also demonstrate different cell structures based on multilayer foils. One approach leverages features of the multilayer foil to produce a self-aligned base contact, leading to a process with only a single alignment step. A champion silicon heterojunction cell with this foil metallization achieved 19.5% efficiency. We further show first results on a completely alignment-free back contact process enabled by multilayer foil metallization.

AB - We present advances in a back-contact, back-junction metallization strategy using preformed multilayers of aluminum foil with a polymer insulator. The low-cost multilayer foils can be conductively bonded to substrates using nonconducting adhesives. The properties of this bonding process are discussed. We also demonstrate different cell structures based on multilayer foils. One approach leverages features of the multilayer foil to produce a self-aligned base contact, leading to a process with only a single alignment step. A champion silicon heterojunction cell with this foil metallization achieved 19.5% efficiency. We further show first results on a completely alignment-free back contact process enabled by multilayer foil metallization.

KW - Contacts

KW - metallization

KW - photovoltaic cells

KW - silicon

UR - http://www.scopus.com/inward/record.url?scp=85059889114&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059889114&partnerID=8YFLogxK

U2 - 10.1109/PVSC.2018.8548118

DO - 10.1109/PVSC.2018.8548118

M3 - Conference contribution

AN - SCOPUS:85059889114

T3 - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

SP - 2667

EP - 2672

BT - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018

Y2 - 10 June 2018 through 15 June 2018

ER -

19.5%-Efficient Back-Contact Silicon Heterojunction Solar Cell with Self Aligned Metallization Using Multilayer Aluminum Foils

Abstract

Publication series

Other

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this