WINDOW-INTEGRATED TRANSPARENT PHOTOVOLTAIC MODULE

Smart overview of the Invention

An innovative electricity-generating window integrates a transparent photovoltaic (PV) module within its structure. The design comprises a first and second glass pane with a photovoltaic device formed on the inner surface of one of these panes. This device includes transparent electrode layers and active layers that transmit visible light while absorbing ultraviolet (UV) or near-infrared (IR) light to generate electricity. The integration aims to maintain transparency and aesthetics, addressing traditional issues with building-integrated photovoltaics.

Construction and Functionality

The window may include additional components like a spacer that creates a cavity between the panes, enhancing thermal insulation. Functional layers such as electrochromic or low-E layers may also be incorporated to reflect infrared light, further improving energy efficiency. The PV device can be laminated between the glass panes, serving dual purposes as both an electricity generator and a thermal barrier.

Technical Features

Key components include busbars for electrical connections and encapsulation layers for protection. A spacer forms a closed loop around the photovoltaic device, ensuring structural integrity and facilitating wiring through an airtight seal. These features collectively enhance the window's capability to generate electricity while maintaining transparency for visible light.

Applications and Benefits

The technology offers significant advantages in energy savings by converting IR light into electrical power, reducing heating and cooling costs. It allows visible light to pass through for natural illumination, preserving the aesthetic appeal of windows. Additionally, the PV layers can power other integrated functional layers like electrochromic devices, providing versatile applications in architectural design.

Fabrication Process

The fabrication involves forming the photovoltaic device on a glass pane, attaching a second pane with a spacer in between, and integrating busbars for electrical connections. Encapsulation layers are deposited for protection, and optional low-E or electrochromic layers can be added to enhance functionality. This process results in a multifunctional window that combines energy generation with thermal management.