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G1 158.75mm N Type Topcon Solar Cell - Bifacial Solar Cell ...

The G1 TOPCon (Tunnel Oxide Passivated Contact) solar cell is a 158.75mm x 158.75mm N-type monocrystalline silicon cell designed for higher efficiency, often exceeding 24–26%, by reducing electron loss via an ultra-thin oxide layer. It typically features 9-12 busbars and offers improved bifaciality, superior high-temperature performance, and lower degradation compared to traditional P-type PERC cells.

Key Characteristics of G1 TOPCon Cells

Dimensions: 158.75mm x 158.75mm (often referred to as G1 size).
Technology: N-type monocrystalline with tunnel oxide passivated contacts.
Efficiency: High-efficiency cells, typically reaching 24.2% to over 26% in laboratory and high-end production.
Structure: Often bifacial, featuring 9-12 busbars (9BB-12BB) for improved current collection.
Performance: Higher open-circuit voltage (
$cap V sub o c end-sub$
) around 740mV, offering superior performance in high-temperature environments.

Advantages Over PERC

Higher Efficiency: Offers higher conversion efficiency than traditional P-type PERC cells.
Low Degradation: N-type cells show lower Light Induced Degradation (LID) and Potential Induced Degradation (PID).
Bifaciality: Excellent bifacial factor allows for higher power generation from the rear side.
Improved Temperature Coefficient: Higher efficiency is maintained at higher temperatures.

Typical Technical Parameters (G1 158.75mm)

Thickness: Generally around
.
Power Output: High-performance G1 TOPCon cells often provide a higher power output per cell, with some specialized modules offering significant improvements over standard P-type modules.

These cells are often used in specialized or high-efficiency module production, even as the industry moves towards larger wafer sizes (M6, M10, G12), due to their superior performance characteristics.

Web results

158.75mm G1 TOPCon solar cell

hzgtsolar.com

https://www.hzgtsolar.com › 15875mm-g1-topcon-sola...

hzgtsolar.com

https://www.hzgtsolar.com › 15875mm-g1-topcon-sola...

Go to hzgtsolar.com for our high quality 158.75mm G1 TOPCon Solar Cell. We can provide factory price and customized service. Act now!

Videos

PERC vs TOPCon vs ABC: Which Solar Panel Technology Is ...

YouTube Synergy Files

Feb 28, 2026

Different Types of Solar Panels: What is PERC, TOPCon, N ...

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Jun 18, 2025

☀️ Solar Cell Manufacturing Process Explained ! #solarcell ...

YouTube Mr. SMART Engineering

Sep 7, 2025

View all

Web results

G1 158.75mm N Type Topcon Solar Cell

Made-in-China.com

https://dsnewenergy.en.made-in-china.com › product

Made-in-China.com

https://dsnewenergy.en.made-in-china.com › product

Mar 23, 2022 — The N type bifacial PERT solar cell can be manufactured with process flow by using ion implant for single-sided doping for excellent emitter ...Read more

$0.25In stockReview by MIC_BUYERFree delivery

TOPCon Technology

JinkoSolar EU

https://jinkosolar.eu › Solar Panels

JinkoSolar EU

https://jinkosolar.eu › Solar Panels

JinkoSolar panels utilize N-type solar cells with TOPCon, an advanced solar technology that boosts efficiency and output —even under low light conditions.Read more

158.75mm mono TOPCON solar cell higher efficiency

Shenzhen Xiangxinrui Solar Energy Co., Ltd

https://www.xxrsolarpv.com › product › topcon-solar-cell

Shenzhen Xiangxinrui Solar Energy Co., Ltd

https://www.xxrsolarpv.com › product › topcon-solar-cell

Brand Name: OEM ; Model Number: XXR G1-158.75-Topcon ; Place of Origin: Guangdong, China ; Cell size: 158.75mmx158.75mm ; Power watt: 5.846w-5.95w.Read more

Topsky Energy | G1 158.75mm 5BB Mono PERC Solar Cell

ENF Solar

https://www.enfsolar.com › cell-datasheet

ENF Solar

https://www.enfsolar.com › cell-datasheet

Cell Technology, Monocrystalline. Dimensions, 158.75×158.75 mm. Cell Thickness, 180 ± 30 µm. No. of Busbars, 5. Busbar Width, 0.7±0.1 mm.Read more

Advanced TOPCon solar cells with patterned p-type poly-Si ...

EPJ Photovoltaics

https://www.epj-pv.org › epjpv › full_html › 2024/01

EPJ Photovoltaics

https://www.epj-pv.org › epjpv › full_html › 2024/01

by J Hoß2024Cited by 9 — The standard TOPCon reference group (G1) achieves a median iVoc = 717.7 mV (J0tot = 24.6 fA/cm²). Notably, the passivation of SelFi TOPCon cell precursors ...Read more

USITC Institutes Section 337 Investigation of Certain ...

United States International Trade Commission (.gov)

https://www.usitc.gov › press_room › news_release

United States International Trade Commission (.gov)

https://www.usitc.gov › press_room › news_release

Mar 26, 2026 — The U.S. International Trade Commission (USITC) voted to institute an investigation of certain TOPCon solar cells, modules, panels, ...Read more

Web results

Long-term stability of TOPCon solar cell precursor ...

ScienceDirect.com

https://www.sciencedirect.com › science › article › pii

ScienceDirect.com

https://www.sciencedirect.com › science › article › pii

by J Kamphues2024Cited by 2 — In this study, the impact of tunnel oxide passivated contact (TOPCon) solar cell precursor structures on commercial Ga-doped Czochralski silicon is investigatedRead more

Certain Topcon Solar Cells, Modules, Panels, Components ...

Federal Register (.gov)

https://www.federalregister.gov › 2025/06/23 › certain-...

Federal Register (.gov)

https://www.federalregister.gov › 2025/06/23 › certain-...

Jun 23, 2025 — The complaint and notice of investigation are amended to replace complainant Trina Solar US Manufacturing Module 1, LLC with the correct party name of T1 G1 ...Read more

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