Integrated photovoltaic window and light source
Implementations of the disclosed subject matter provide a window, an energy and light producing device including at least one transparent photovoltaic device and at least one non-transparent Organic Light Emitting Device (OLED) in an optical path of the window. A controller may control the operation of the non-transparent OLED of the energy and light producing device. An energy storage device may be electrically coupled to the controller and the energy and light producing device to store energy generated by the transparent photovoltaic device and to power the non-transparent OLED. In some implementations, a LED or OLED may be mounted in the frame of the window and may be powered by the energy storage device.
1. A device comprising:
a window comprising a transparent or translucent glass pane;
an energy and light producing device including at least one transparent photovoltaic device disposed on a first substrate in a first area of an optical path of the glass pane of thea window, and at least one non-transparent Organic Light Emitting Device (OLED) disposed on a second substrate that is disposed in a second area of the optical path of the glass pane of the window, wherein the first substrate and the second substrate are separate transparent substrates that are smaller than the glass pane and are offset from one another, and the at least one non-transparent OLED outputs light;
a controller to control the operation of the at least one non-transparent OLED of the energy and light producing device; and
an energy storage device that is electrically coupled to the controller and the energy and light producing device to store energy generated by the at least one transparent photovoltaic device and to power the at least one non-transparent OLED of the energy and light producing device.
2. The device of claim 1 , wherein the at least one transparent photovoltaic device and the at least one non-transparent OLED of the energy and light producing device have a common electrode.
3. The device of claim 1 , wherein one of the at least one transparent photovoltaic device and the at least one non-transparent OLED of the energy and light producing device is laminated onto the glass pane.
4. The device of claim 1 , wherein one of the at least one transparent photovoltaic device and the at least one non-transparent OLED of the energy and light producing device is disposed on the glass pane.
5. The device of claim 1 , wherein the at least one transparent photovoltaic device of the energy and light producing device has a conversion efficiency greater than 10% and a transparency greater than 30% across the visible spectrum.
6. The device of claim 1 , wherein the device provides greater than 10,000 lumens per m 2 of window area for at least one half the time the device is exposed to sunlight.
7. The device of claim 1 , wherein a portion of the light emitted by the at least one non-transparent OLED of the energy and light producing device is reflected to provide indirect lighting of an environment.