We use cookies to improve your experience and for marketing. Read our cookie policy or manage cookies.
Search across reports, market insights, and blog stories.
A research team in the United States has fabricated a type of solar cell using screen-printed copper contacts on its rear side, according to a report from pv magazine. The cells, which feature a silver front contact, underwent a laser-enhanced contact optimization process to reduce electrical resistance at the contact points.
The team utilized a specialized copper paste designed to inhibit copper diffusion. This paste can be screen-printed and fired in air and is compatible with commercial silver pastes. The cells were built on standard n-type wafers, with a boron-diffused emitter on the front and a full-area TOPCon stack on the rear. The silver front grid was fired at a high temperature, while the copper rear contact was fired at a lower temperature to prevent copper migration.
The laser optimization treatment was applied with varying electrical bias to improve performance. Analysis showed the treatment drastically lowered contact resistivity at the rear. Microstructural examination revealed that copper was confined to the intended poly-silicon layer, improving contact without degrading key electrical parameters.
Through systematic optimization of printing and firing conditions, the team found that a specific firing temperature range provided stable voltage and fill factor, with performance degrading at higher temperatures due to copper diffusion. Electroluminescence imaging confirmed improved contact quality at the optimal temperature.
When compared to reference cells using full silver contacts, the copper-contacted cells demonstrated comparable open-circuit voltage and pseudo fill factor, though with marginally lower short-circuit current and fill factor. The optimized copper cells achieved an efficiency of 24.3%, which was slightly below that of the silver-reference cells. Stability testing under thermal stress showed negligible performance change over an extended period.
The researchers concluded that the high-efficiency copper-contacted cells present a viable opportunity to replace more expensive silver contacts in production, as the required tools and processes are already industry-standard. The work was detailed in the journal Solar Energy Materials and Solar Cells by a team including academics from a U.S. Department of Energy national laboratory, the Georgia Institute of Technology, and a copper paste specialist firm.
Interactive table based on the Store Companies dataset for this report.
This report provides a comprehensive view of the solar cells and light-emitting diodes industry in the United States, tracking demand, supply, and trade flows across the national value chain. It explains how demand across key channels and end-use segments shapes consumption patterns, while also mapping the role of input availability, production efficiency, and regulatory standards on supply.
Beyond headline metrics, the study benchmarks prices, margins, and trade routes so you can see where value is created and how it moves between domestic suppliers and international partners. The analysis is designed to support strategic planning, market entry, portfolio prioritization, and risk management in the solar cells and light-emitting diodes landscape in the United States.
The report combines market sizing with trade intelligence and price analytics for the United States. It covers both historical performance and the forward outlook to 2035, allowing you to compare cycles, structural shifts, and policy impacts.
This report provides a consistent view of market size, trade balance, prices, and per-capita indicators for the United States. The profile highlights demand structure and trade position, enabling benchmarking against regional and global peers.
The analysis is built on a multi-source framework that combines official statistics, trade records, company disclosures, and expert validation. Data are standardized, reconciled, and cross-checked to ensure consistency across time series.
All data are normalized to a common product definition and mapped to a consistent set of codes. This ensures that comparisons across time are aligned and actionable.
The forecast horizon extends to 2035 and is based on a structured model that links solar cells and light-emitting diodes demand and supply to macroeconomic indicators, trade patterns, and sector-specific drivers. The model captures both cyclical and structural factors and reflects known policy and technology shifts in the United States.
Each projection is built from national historical patterns and the broader regional context, allowing the report to show where growth is concentrated and where risks are elevated.
Prices are analyzed in detail, including export and import unit values, regional spreads, and changes in trade costs. The report highlights how seasonality, freight rates, exchange rates, and supply disruptions influence pricing and margins.
Key producers, exporters, and distributors are profiled with a focus on their operational scale, geographic footprint, product mix, and market positioning. This helps identify competitive pressure points, partnership opportunities, and routes to differentiation.
This report is designed for manufacturers, distributors, importers, wholesalers, investors, and advisors who need a clear, data-driven picture of solar cells and light-emitting diodes dynamics in the United States.
The market size aggregates consumption and trade data, presented in both value and volume terms.
The projections combine historical trends with macroeconomic indicators, trade dynamics, and sector-specific drivers.
Yes, it includes export and import unit values, regional spreads, and a pricing outlook to 2035.
The report benchmarks market size, trade balance, prices, and per-capita indicators for the United States.
Yes, it highlights demand hotspots, trade routes, pricing trends, and competitive context.
Report Scope and Analytical Framing
Concise View of Market Direction
Market Size, Growth and Scenario Framing
Commercial and Technical Scope
How the Market Splits Into Decision-Relevant Buckets
Where Demand Comes From and How It Behaves
Supply Footprint and Value Capture
Trade Flows and External Dependence
Price Formation and Revenue Logic
Who Wins and Why
How the Domestic Market Works
Commercial Entry and Scaling Priorities
Where the Best Expansion Logic Sits
Leading Players and Strategic Archetypes
How the Report Was Built
Major US solar manufacturer
Residential & commercial solar
Former Cree LED business
Spin-off from SunPower
Specialty & high-power LEDs
LED technology & solutions
Advanced photonics
Residential solar panels
CIGS solar technology
US & Canadian manufacturing
North American manufacturing
US-made solar panels
US operations of Korean parent
3D architecture LEDs
High-quality lighting
High-brightness microdisplays
Disinfection & purification
US crystalline silicon solar
Next-generation tandem cells
Tandem cell technology
Manufacturing equipment
Turnkey production lines
Distributor & assembler
Residential & commercial
Former Philips business
Specialty & horticultural
Military & commercial
Aluminum nitride substrates
Materials for UV LEDs
US division of Kyocera
Instant access. No credit card needed.
Online access to 2M+ reports, dashboards, and tables. Trusted by Fortune 500 teams.
IndexBox, Inc.
2093 Philadelphia Pike #1441
Claymont, DE 19703, USA
Contact us
© 2026 IndexBox, Inc
Instant access. No credit card needed.
Online access to 2M+ reports, dashboards, and tables. Trusted by Fortune 500 teams.

source