Details
| Original language | English |
|---|---|
| Title of host publication | 2024 IEEE 52nd Photovoltaic Specialist Conference, PVSC 2024 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 253-255 |
| Number of pages | 3 |
| ISBN (electronic) | 9781665464260 |
| ISBN (print) | 978-1-6654-7582-2 |
| Publication status | Published - 9 Jun 2024 |
| Event | 52nd IEEE Photovoltaic Specialist Conference, PVSC 2024 - Seattle, United States Duration: 9 Jun 2024 → 14 Jun 2024 |
Publication series
| Name | Conference Record of the IEEE Photovoltaic Specialists Conference |
|---|---|
| ISSN (Print) | 0160-8371 |
| ISSN (electronic) | 2995-1755 |
Abstract
Reducing the silver consumption of photovoltaics (PV) is a major aspect in recent solar cell research. For PERC+ solar cells silver is used for the front contact and as solder pads on the rear side. An ultrasonic (US) soldering process is used to wet Al structures on the rear side of PERC+ with lead-free solder and manufacture silver-free solder pads for the standard tabbing process. Peel tests are carried out showing an adhesion of above 2 N/mm of the cell interconnects. Contact resistance measurements are performed showing a comparable contribution to the series resistance as silver solder pads. Minimodules are fabricated reaching the same efficiency as a reference module with standard silver pad rear side connection and a degradation of less than 3.6% after 200 humidity-freeze cycles.
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
- Engineering(all)
- Electrical and Electronic Engineering
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2024 IEEE 52nd Photovoltaic Specialist Conference, PVSC 2024. Institute of Electrical and Electronics Engineers Inc., 2024. p. 253-255 (Conference Record of the IEEE Photovoltaic Specialists Conference).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Reduced Silver and Lead Consumption for Interconnection of the Rear Side of PERC+ Solar Cells by Ultrasonic Assisted Soldering
AU - Brinkmann, M.
AU - Delsol, R.
AU - Daschinger, T.
AU - Brendel, R.
AU - Schulte-Huxel, H.
N1 - Publisher Copyright: © 2024 IEEE.
PY - 2024/6/9
Y1 - 2024/6/9
N2 - Reducing the silver consumption of photovoltaics (PV) is a major aspect in recent solar cell research. For PERC+ solar cells silver is used for the front contact and as solder pads on the rear side. An ultrasonic (US) soldering process is used to wet Al structures on the rear side of PERC+ with lead-free solder and manufacture silver-free solder pads for the standard tabbing process. Peel tests are carried out showing an adhesion of above 2 N/mm of the cell interconnects. Contact resistance measurements are performed showing a comparable contribution to the series resistance as silver solder pads. Minimodules are fabricated reaching the same efficiency as a reference module with standard silver pad rear side connection and a degradation of less than 3.6% after 200 humidity-freeze cycles.
AB - Reducing the silver consumption of photovoltaics (PV) is a major aspect in recent solar cell research. For PERC+ solar cells silver is used for the front contact and as solder pads on the rear side. An ultrasonic (US) soldering process is used to wet Al structures on the rear side of PERC+ with lead-free solder and manufacture silver-free solder pads for the standard tabbing process. Peel tests are carried out showing an adhesion of above 2 N/mm of the cell interconnects. Contact resistance measurements are performed showing a comparable contribution to the series resistance as silver solder pads. Minimodules are fabricated reaching the same efficiency as a reference module with standard silver pad rear side connection and a degradation of less than 3.6% after 200 humidity-freeze cycles.
UR - http://www.scopus.com/inward/record.url?scp=85211587214&partnerID=8YFLogxK
U2 - 10.1109/PVSC57443.2024.10748728
DO - 10.1109/PVSC57443.2024.10748728
M3 - Conference contribution
AN - SCOPUS:85211587214
SN - 978-1-6654-7582-2
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 253
EP - 255
BT - 2024 IEEE 52nd Photovoltaic Specialist Conference, PVSC 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 52nd IEEE Photovoltaic Specialist Conference, PVSC 2024
Y2 - 9 June 2024 through 14 June 2024
ER -