Fatigue-Like Behavior of Silver Metallization Gridlines and Proposed Damage Mechanics Model

Nick Bosco; Andre Chavez; Vijaykumar Upadhyaya; Sang Han

doi:10.1109/PVSC45281.2020.9300893

Fatigue-Like Behavior of Silver Metallization Gridlines and Proposed Damage Mechanics Model

Nick Bosco
, Andre Chavez
, Vijaykumar Upadhyaya
, Sang Han

Materials Science

Research output: Contribution to conference › Paper › peer-review

5 Scopus Citations

Abstract

In this work, we present a novel method to evaluate the fracture and fatigue-like behavior of crystalline silicon PV cell metallization. Initial results demonstrate that silver metal gridlines are capable of bridging a 10-20 µm gap prior to becoming electrically open and do demonstrate fatigue-like behavior under cyclic straining conditions. This later phenomenon was well fit with a traditional power law equation for high cycle fatigue and enabled the development of a damage mechanics model for gridline failure.

Original language	American English
Pages	271-275
Number of pages	5
DOIs	https://doi.org/10.1109/PVSC45281.2020.9300893 https://doi.org/10.1109/PVSC45281.2020.9300893
State	Published - 14 Jun 2020
Event	47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada Duration: 15 Jun 2020 → 21 Aug 2020

Conference

Conference	47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Country/Territory	Canada
City	Calgary
Period	15/06/20 → 21/08/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

NLR Publication Number

NREL/CP-5K00-75750

Keywords

cracking
gridlines
metallization
module
photovoltaics
reliability

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Cite this

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title = "Fatigue-Like Behavior of Silver Metallization Gridlines and Proposed Damage Mechanics Model",

abstract = "In this work, we present a novel method to evaluate the fracture and fatigue-like behavior of crystalline silicon PV cell metallization. Initial results demonstrate that silver metal gridlines are capable of bridging a 10-20 µm gap prior to becoming electrically open and do demonstrate fatigue-like behavior under cyclic straining conditions. This later phenomenon was well fit with a traditional power law equation for high cycle fatigue and enabled the development of a damage mechanics model for gridline failure.",

keywords = "cracking, gridlines, metallization, module, photovoltaics, reliability",

author = "Nick Bosco and Andre Chavez and Vijaykumar Upadhyaya and Sang Han",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 47th IEEE Photovoltaic Specialists Conference, PVSC 2020 ; Conference date: 15-06-2020 Through 21-08-2020",

year = "2020",

month = jun,

day = "14",

doi = "10.1109/PVSC45281.2020.9300893",

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AU - Bosco, Nick

AU - Chavez, Andre

AU - Upadhyaya, Vijaykumar

AU - Han, Sang

PY - 2020/6/14

Y1 - 2020/6/14

N2 - In this work, we present a novel method to evaluate the fracture and fatigue-like behavior of crystalline silicon PV cell metallization. Initial results demonstrate that silver metal gridlines are capable of bridging a 10-20 µm gap prior to becoming electrically open and do demonstrate fatigue-like behavior under cyclic straining conditions. This later phenomenon was well fit with a traditional power law equation for high cycle fatigue and enabled the development of a damage mechanics model for gridline failure.

AB - In this work, we present a novel method to evaluate the fracture and fatigue-like behavior of crystalline silicon PV cell metallization. Initial results demonstrate that silver metal gridlines are capable of bridging a 10-20 µm gap prior to becoming electrically open and do demonstrate fatigue-like behavior under cyclic straining conditions. This later phenomenon was well fit with a traditional power law equation for high cycle fatigue and enabled the development of a damage mechanics model for gridline failure.

KW - cracking

KW - gridlines

KW - metallization

KW - module

KW - photovoltaics

KW - reliability

UR - https://www.scopus.com/pages/publications/85099537522

U2 - 10.1109/PVSC45281.2020.9300893

DO - 10.1109/PVSC45281.2020.9300893

M3 - Paper

AN - SCOPUS:85099537522

SP - 271

EP - 275

T2 - 47th IEEE Photovoltaic Specialists Conference, PVSC 2020

Y2 - 15 June 2020 through 21 August 2020

ER -

Fatigue-Like Behavior of Silver Metallization Gridlines and Proposed Damage Mechanics Model

Abstract

Conference

Bibliographical note

NLR Publication Number

Keywords

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