Optimization of Controllable Factors in the Aluminum Silicon Eutectic Paste and Rear Silicon Nitride Mono-Passivation Layer of PERC Solar Cells

Sungeun Park, Hyomin Park, Dongseop Kim, Jung Yup Yang, Dongho Lee, Young Su Kim, Hyun Jong Kim, Dongchul Suh, Byoung Koun Min, Kyung Nam Kim, Se Jin Park, Donghwan Kim, Haeseok Lee, Junggyu Nam, Yoon Mook Kang

Research output: Contribution to journalArticle

Abstract

Passivated emitter and rear contact (PERC) is a promising technology owing to high efficiency can be achieved with p-type wafer and their easily applicable to existing lines. In case of using p-type mono wafer, 0.5–1% efficiency increase is expected with PERC technologies compared to existing Al BSF solar cells, while for multi-wafer solar cells it is 0.5–0.8%. We addressed the optimization of PERC solar cells using the Al paste. The paste was prepared from the aluminum–silicon alloy with eutectic composition to avoid the formation of voids that degrade the open-circuit voltage. The glass frit of the paste was changed to improve adhesion. Scanning electron microscopy revealed voids and local back surface field between the aluminum electrode and silicon base. We confirmed the conditions on the SiNx passivation layer for achieving higher efficiency and better adhesion for long-term stability. The cell characteristics were compared across cells containing different pastes. PERC solar cells with the Al/Si eutectic paste exhibited the efficiency of 19.6%.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalMetals and Materials International
DOIs
Publication statusAccepted/In press - 2018 Mar 1

Fingerprint

Silicon
Ointments
Aluminum
Silicon nitride
Passivation
silicon nitrides
eutectics
Eutectics
passivity
Solar cells
emitters
solar cells
aluminum
optimization
silicon
wafers
Adhesion
voids
adhesion
Adhesive pastes

Keywords

  • Al paste
  • Aluminum silicon eutectic paste
  • PERC solar cells
  • Rear passivation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

Optimization of Controllable Factors in the Aluminum Silicon Eutectic Paste and Rear Silicon Nitride Mono-Passivation Layer of PERC Solar Cells. / Park, Sungeun; Park, Hyomin; Kim, Dongseop; Yang, Jung Yup; Lee, Dongho; Kim, Young Su; Kim, Hyun Jong; Suh, Dongchul; Min, Byoung Koun; Kim, Kyung Nam; Park, Se Jin; Kim, Donghwan; Lee, Haeseok; Nam, Junggyu; Kang, Yoon Mook.

In: Metals and Materials International, 01.03.2018, p. 1-8.

Research output: Contribution to journalArticle

Park, Sungeun ; Park, Hyomin ; Kim, Dongseop ; Yang, Jung Yup ; Lee, Dongho ; Kim, Young Su ; Kim, Hyun Jong ; Suh, Dongchul ; Min, Byoung Koun ; Kim, Kyung Nam ; Park, Se Jin ; Kim, Donghwan ; Lee, Haeseok ; Nam, Junggyu ; Kang, Yoon Mook. / Optimization of Controllable Factors in the Aluminum Silicon Eutectic Paste and Rear Silicon Nitride Mono-Passivation Layer of PERC Solar Cells. In: Metals and Materials International. 2018 ; pp. 1-8.
@article{6feca81243d144778058273c86671ef0,
title = "Optimization of Controllable Factors in the Aluminum Silicon Eutectic Paste and Rear Silicon Nitride Mono-Passivation Layer of PERC Solar Cells",
abstract = "Passivated emitter and rear contact (PERC) is a promising technology owing to high efficiency can be achieved with p-type wafer and their easily applicable to existing lines. In case of using p-type mono wafer, 0.5–1{\%} efficiency increase is expected with PERC technologies compared to existing Al BSF solar cells, while for multi-wafer solar cells it is 0.5–0.8{\%}. We addressed the optimization of PERC solar cells using the Al paste. The paste was prepared from the aluminum–silicon alloy with eutectic composition to avoid the formation of voids that degrade the open-circuit voltage. The glass frit of the paste was changed to improve adhesion. Scanning electron microscopy revealed voids and local back surface field between the aluminum electrode and silicon base. We confirmed the conditions on the SiNx passivation layer for achieving higher efficiency and better adhesion for long-term stability. The cell characteristics were compared across cells containing different pastes. PERC solar cells with the Al/Si eutectic paste exhibited the efficiency of 19.6{\%}.",
keywords = "Al paste, Aluminum silicon eutectic paste, PERC solar cells, Rear passivation",
author = "Sungeun Park and Hyomin Park and Dongseop Kim and Yang, {Jung Yup} and Dongho Lee and Kim, {Young Su} and Kim, {Hyun Jong} and Dongchul Suh and Min, {Byoung Koun} and Kim, {Kyung Nam} and Park, {Se Jin} and Donghwan Kim and Haeseok Lee and Junggyu Nam and Kang, {Yoon Mook}",
year = "2018",
month = "3",
day = "1",
doi = "10.1007/s12540-018-0032-8",
language = "English",
pages = "1--8",
journal = "Metals and Materials International",
issn = "1598-9623",
publisher = "Korean Institute of Metals and Materials",

}

TY - JOUR

T1 - Optimization of Controllable Factors in the Aluminum Silicon Eutectic Paste and Rear Silicon Nitride Mono-Passivation Layer of PERC Solar Cells

AU - Park, Sungeun

AU - Park, Hyomin

AU - Kim, Dongseop

AU - Yang, Jung Yup

AU - Lee, Dongho

AU - Kim, Young Su

AU - Kim, Hyun Jong

AU - Suh, Dongchul

AU - Min, Byoung Koun

AU - Kim, Kyung Nam

AU - Park, Se Jin

AU - Kim, Donghwan

AU - Lee, Haeseok

AU - Nam, Junggyu

AU - Kang, Yoon Mook

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Passivated emitter and rear contact (PERC) is a promising technology owing to high efficiency can be achieved with p-type wafer and their easily applicable to existing lines. In case of using p-type mono wafer, 0.5–1% efficiency increase is expected with PERC technologies compared to existing Al BSF solar cells, while for multi-wafer solar cells it is 0.5–0.8%. We addressed the optimization of PERC solar cells using the Al paste. The paste was prepared from the aluminum–silicon alloy with eutectic composition to avoid the formation of voids that degrade the open-circuit voltage. The glass frit of the paste was changed to improve adhesion. Scanning electron microscopy revealed voids and local back surface field between the aluminum electrode and silicon base. We confirmed the conditions on the SiNx passivation layer for achieving higher efficiency and better adhesion for long-term stability. The cell characteristics were compared across cells containing different pastes. PERC solar cells with the Al/Si eutectic paste exhibited the efficiency of 19.6%.

AB - Passivated emitter and rear contact (PERC) is a promising technology owing to high efficiency can be achieved with p-type wafer and their easily applicable to existing lines. In case of using p-type mono wafer, 0.5–1% efficiency increase is expected with PERC technologies compared to existing Al BSF solar cells, while for multi-wafer solar cells it is 0.5–0.8%. We addressed the optimization of PERC solar cells using the Al paste. The paste was prepared from the aluminum–silicon alloy with eutectic composition to avoid the formation of voids that degrade the open-circuit voltage. The glass frit of the paste was changed to improve adhesion. Scanning electron microscopy revealed voids and local back surface field between the aluminum electrode and silicon base. We confirmed the conditions on the SiNx passivation layer for achieving higher efficiency and better adhesion for long-term stability. The cell characteristics were compared across cells containing different pastes. PERC solar cells with the Al/Si eutectic paste exhibited the efficiency of 19.6%.

KW - Al paste

KW - Aluminum silicon eutectic paste

KW - PERC solar cells

KW - Rear passivation

UR - http://www.scopus.com/inward/record.url?scp=85045136033&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045136033&partnerID=8YFLogxK

U2 - 10.1007/s12540-018-0032-8

DO - 10.1007/s12540-018-0032-8

M3 - Article

SP - 1

EP - 8

JO - Metals and Materials International

JF - Metals and Materials International

SN - 1598-9623

ER -