RPI ID: 2006-005-201

Innovation Summary:
This invention introduces a unique edge-illumination photovoltaic (PV) device architecture that enhances solar energy harvesting by directing light into the edges of photovoltaic materials rather than their top surfaces. The design utilizes light-guiding structures—such as waveguides or optical elements—to collect and redirect incident light toward the edges of thin-film or crystalline PV cells. This method allows for more efficient light absorption, reduced surface reflection, and novel device geometries that are well-suited for integration into non-traditional environments.

Challenges / Opportunities:
Traditional PV systems are limited by surface-based light collection, which can suffer from shading, reflection losses, and constraints on form factor. This invention overcomes those limitations by decoupling light collection from the active surface, enabling greater design flexibility and enhanced efficiency. It opens new opportunities in building-integrated photovoltaics (BIPV), transparent solar panels, and compact, embedded solar systems.

Key Benefits / Advantages:
✔ Efficient light capture through edge-directed illumination
✔ Enables ultra-thin, lightweight, and flexible PV designs
✔ Reduces thermal and environmental stress on active surfaces
✔ Compatible with a wide range of photovoltaic materials and substrates

Applications:
• Building-integrated and architectural photovoltaics
• Transparent or semi-transparent solar windows
• Portable and wearable solar-powered devices
• Embedded solar in vehicles and consumer electronics

Keywords:
#edgeillumination #photovoltaics #solarenergy #BIPV #lightguiding

Intellectual Property:
US Issued Patent 7,902,453 B2