CdTe Technology
Cadmium Telluride (CdTe) photovoltaics are deployed in some of the world's largest photovoltaic power stations, including the Topaz Solar Farm. CdTe has long been recognised as a leading thin-film PV material, owing to its near-optimal bandgap of 1.44 eV and high absorption coefficient.
CdTe solar cells have quietly established themselves as a mass-market PV technology. Although the market remains dominated by silicon, CdTe now holds approximately 7% market share and stands as the first second-generation thin-film technology to achieve truly large-scale deployment. CdTe thin-film solar cells can be manufactured rapidly and cost-effectively, offering a compelling alternative to conventional silicon-based technologies. The record efficiency for a laboratory CdTe solar cell stands at 22.1%, with average commercial module efficiency reaching approximately 18% by the end of 2020.
On a lifecycle basis, CdTe PV technology offers the smallest carbon footprint, lowest water consumption, and shortest energy payback time of any photovoltaic technology currently available. With an energy payback time of less than one year, CdTe enables faster carbon reductions without creating short-term energy deficits, and its modules are designed to last between 25 and 30 years.
We are approved by HK Laboratory
The key benefits of CdTe thin-film solar cells include:
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High absorption — Cadmium telluride is a direct-bandgap material with a tunable bandgap energy ranging from 1.4 to 1.5 eV, which is near-optimal for converting sunlight into electricity using a single-junction design.
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Low-cost manufacturing — CdTe solar cells leverage high-throughput production methods, enabling complete modules to be manufactured from input materials in just a matter of hours.
Technologies
A-Grade Energy operates a research and development centre equipped with world-class facilities dedicated to green energy studies — spanning photovoltaics and energy storage systems. Backed by a team of talented scientists and skilled researchers, the company possesses strong capabilities in developing innovative products, positioning itself to take a leading role in the market.
Additionally, A-Grade Energy works closely with leading universities and advanced manufacturers, acting as a bridge that connects upstream research with downstream application to commercialise cutting-edge technologies.
Collaboration with universities
