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Photocells for indoor use

16.03.2021

Scottish scientists have developed organic photovoltaic cells that turn indoor light into electricity. The new technology was proposed by scientists from the University of Strathclyde and the University of St. Andrews.

Scientists have designed and manufactured organic photovoltaic cells from plastic-like materials similar to those used in smartphone OLED displays. The result is photocells that allow stable and efficient conversion of indoor light into electricity.

The new solar panel captures light energy and simultaneously provides high-speed visible light communication (VLC) using a MIMO technique that increases the channel bandwidth.

Four photocells made of plastic-like materials were combined into a panel, during the experiments it demonstrated the ability to provide wireless optical communication at a speed of 363 Mbps, while simultaneously producing 11 MWh of electricity. An array of four laser diodes was used as a source of information, each of which transmitted a separate signal.

Organic solar cells show maximum efficiency when operating in the typical indoor light from LED lamps. Such solar panels are easy to manufacture, cost less than inorganic counterparts, and can be flexible, making them easy to integrate into mobile devices.

Further development of organic photovoltaic cells capable of receiving information in the future will make it possible to use entire walls of premises at the same time as a communication channel that supports speeds up to 1 gigabit per second, and as a solar panel that provides electricity to network equipment.

Devices that can independently produce energy and transmit data will allow you to connect a large number of gadgets to the Internet and the power grid. Now in the world there are more than 18 billion mobile devices connected to global networks, and in the next 10 years, given the rapid development of the Internet of things, their number will increase to tens of billions.

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