High-Efficiency Copper Solar Cell Development
Sector: Solar • Location: United States
Source: IndexBox
A research team in the United States developed a solar cell using screen-printed copper contacts on the rear side, achieving 24.3% efficiency. The cells use a silver front contact and underwent laser-enhanced contact optimization to reduce electrical resistance. The copper paste inhibits diffusion and is compatible with commercial silver pastes. The cells are built on standard n-type wafers with a
- Status
- Closed
- Sector
- Solar, Metal, Commercial
- Location
- United States of America
- Updated
- 22 Jul 2026
- Source
- IndexBox
ConstructChat
Ask ConstructChat about High-Efficiency Copper Solar Cell Development
Pick a question to edit it, or write your own.
First answer free · no account
Project Information FAQ
Project Information
Participants
| Not available for this record. |
Status
Original status | completed |
Taiyo status | Closed |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | A research team in the United States developed a solar cell using screen-printed copper contacts on the rear side, achieving 24.3% efficiency. The cells use a silver front contact and underwent laser-enhanced contact optimization to reduce electrical resistance. The copper paste inhibits diffusion and is compatible with commercial silver pastes. The cells are built on standard n-type wafers with a boron-diffused emitter and a full-area TOPCon stack. The optimized copper cells offer comparable performance to silver-based cells and enhanced stability, presenting a viable alternative to expensive silver contacts in production. |
Original sector | Energy |
Location
Country | United States of America (USA) |
Source
Source | IndexBox |
URL |
More Details
Record type | Project |
Sector | Solar, Metal, Commercial |
Article published date | 2026-04-14 |
Research
Free account
View all details
You are reading the public part. A free account opens the rest:
- Every detail on this project
- News and media coverage
- Technical research
Free account · no card · lands you back on this project
More Solar projects in United States
- Carlsbad Desalination Project, San Diego, California
- Spaceport America, New Mexico
- Centrally Managed Pay-and-Display Parking
- Biodiesel from Algae, A Facility to Produce Biodiesel from Algae Oil, USA
- Kona Brewing’s Brewery and Canning Facility, Hawaii, US
- Hardywood Park Craft Brewery, Goochland County, Virginia, US
- Maple Leaf Foods’ Commercial Bakery
- Robert Mondavi Winery, Brewery and Food Processing Complex