Details
| Original language | English |
|---|---|
| Article number | 7390201 |
| Pages (from-to) | 432-439 |
| Number of pages | 8 |
| Journal | IEEE journal of photovoltaics |
| Volume | 6 |
| Issue number | 2 |
| Early online date | 25 Jan 2016 |
| Publication status | Published - Mar 2016 |
Abstract
Recent reports about new cell efficiency records are highlighting the continuing development of passivated emitter and rear cells (PERC). Additionally, volume production has started, forming the basis for cutting edge solar modules. However, transferring the high efficiency of the cells into a module requires an adaptation of the conventional front metallization and of the cell interconnection design. This paper studies and compares the module output of various cell interconnection technologies, including conventional cell interconnection ribbons and wires. We fabricate solar cells and characterize their electrical and optical properties. From the cells, we build experimental modules with various cell interconnection technologies. We determine the optical and electrical characteristics of the experimental modules. Based on our experimental results, we develop an analytical model that reproduces the power output of the experimental modules within the measurement uncertainty. The analytical model is then applied to simulate various cell interconnection technologies employing halved cells, optical enhanced cell interconnectors, and multiwires. We also consider the effect of enhancing the cell-to-cell spacing. Based on the experimentally verified simulations, we propose an optimized cell interconnection for a 60-PERC module that achieves a power output of 323 W. Our simulations reveal that wires combined with halved cells show the best module performance. However, applying light-harvesting structures to the cell interconnection ribbons is an attractive alternative for upgrading existing production lines.
Keywords
- Cell interconnection, passivated emitter and rear cells (PERC), silicon solar cell, Solar module
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: IEEE journal of photovoltaics, Vol. 6, No. 2, 7390201, 03.2016, p. 432-439.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Optimized Interconnection of Passivated Emitter and Rear Cells by Experimentally Verified Modeling
AU - Witteck, Robert
AU - Hinken, David
AU - Schulte-Huxel, Henning
AU - Vogt, Malte R.
AU - Muller, Jens
AU - Blankemeyer, Susanne
AU - Kontges, Marc
AU - Bothe, Karsten
AU - Brendel, Rolf
N1 - Funding Information: The authors would like thank the PERC2Module team for the cell and module production. This work was supported by the German Federal Ministry for Economic Affairs and Energy through the PERC2Module project under Contract 0325641.
PY - 2016/3
Y1 - 2016/3
N2 - Recent reports about new cell efficiency records are highlighting the continuing development of passivated emitter and rear cells (PERC). Additionally, volume production has started, forming the basis for cutting edge solar modules. However, transferring the high efficiency of the cells into a module requires an adaptation of the conventional front metallization and of the cell interconnection design. This paper studies and compares the module output of various cell interconnection technologies, including conventional cell interconnection ribbons and wires. We fabricate solar cells and characterize their electrical and optical properties. From the cells, we build experimental modules with various cell interconnection technologies. We determine the optical and electrical characteristics of the experimental modules. Based on our experimental results, we develop an analytical model that reproduces the power output of the experimental modules within the measurement uncertainty. The analytical model is then applied to simulate various cell interconnection technologies employing halved cells, optical enhanced cell interconnectors, and multiwires. We also consider the effect of enhancing the cell-to-cell spacing. Based on the experimentally verified simulations, we propose an optimized cell interconnection for a 60-PERC module that achieves a power output of 323 W. Our simulations reveal that wires combined with halved cells show the best module performance. However, applying light-harvesting structures to the cell interconnection ribbons is an attractive alternative for upgrading existing production lines.
AB - Recent reports about new cell efficiency records are highlighting the continuing development of passivated emitter and rear cells (PERC). Additionally, volume production has started, forming the basis for cutting edge solar modules. However, transferring the high efficiency of the cells into a module requires an adaptation of the conventional front metallization and of the cell interconnection design. This paper studies and compares the module output of various cell interconnection technologies, including conventional cell interconnection ribbons and wires. We fabricate solar cells and characterize their electrical and optical properties. From the cells, we build experimental modules with various cell interconnection technologies. We determine the optical and electrical characteristics of the experimental modules. Based on our experimental results, we develop an analytical model that reproduces the power output of the experimental modules within the measurement uncertainty. The analytical model is then applied to simulate various cell interconnection technologies employing halved cells, optical enhanced cell interconnectors, and multiwires. We also consider the effect of enhancing the cell-to-cell spacing. Based on the experimentally verified simulations, we propose an optimized cell interconnection for a 60-PERC module that achieves a power output of 323 W. Our simulations reveal that wires combined with halved cells show the best module performance. However, applying light-harvesting structures to the cell interconnection ribbons is an attractive alternative for upgrading existing production lines.
KW - Cell interconnection
KW - passivated emitter and rear cells (PERC)
KW - silicon solar cell
KW - Solar module
UR - http://www.scopus.com/inward/record.url?scp=84961334715&partnerID=8YFLogxK
U2 - 10.1109/JPHOTOV.2016.2514706
DO - 10.1109/JPHOTOV.2016.2514706
M3 - Article
AN - SCOPUS:84961334715
VL - 6
SP - 432
EP - 439
JO - IEEE journal of photovoltaics
JF - IEEE journal of photovoltaics
SN - 2156-3381
IS - 2
M1 - 7390201
ER -