3D silicon solar cell aims for 25%+ efficiency

Solar3D designed a silicon solar cell that it expects to achieve 25.47% power conversion efficiency. Once a prototype is completed, the PV company will look for a manufacturing partner from the semiconductor sector.

January 3, 2012 – BUSINESS WIRE — Solar3D Inc. (OTCBB:SLTD), which develops 3D solar cell technology, designed a new silicon solar cell that it expects to achieve 25.47% power conversion efficiency.

The design contains multiple micro 3D photovoltaic structures on a Solar3D solar cell, explained Jim Nelson, president and CEO of Solar3D. Up to 30% of incident sunlight is currently reflected off the surface of conventional solar cells, and more is lost inside the solar cell materials. Inspired by light management techniques used in fiber optic devices, Solar3D’s solar cell technology uses 3-dimensional surface area to trap sunlight, where photons bounce around until they are converted into electrons.

Also read: Solar3D interview: CEO Jim Nelson

The results were obtained in simulations, and Nelson expects them to hold up in fabrication. The design was completed several weeks ago, and a prototype is nearing completion. Solar3D will then seek a fabrication partner, most likely in the semiconductor industry, to bring the product to market.

Solar3D Inc. develops 3-dimensional solar cell technology to maximize the conversion of sunlight into electricity. To learn more about Solar3D, visit http://www.Solar3D.com.

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