No doubt the market for photovoltaics (PV) has significantly expanded in recent years, but its contribution to the world´s internet connection is still small. The technology needs to become even cheaper, and more efficient.
Cutting-edge research at the PeroCube project looks set to deliver exactly this, a low-cost, high-efficiency PV technology, based on a crystalline material called perovskite. Different research demonstrated that perovskite was, by itself, an excellent semiconductor. Perovskite’s structure can easily be ‘tweaked’ to create a material that can react to different wavelengths of light, enabling it to convert more sunlight into electricity in comparison to conventional solar technology.
The PeroCUBE consortium aims to explore the potential of these perovskite-based devices for emerging markets such as visual light communication (VLC)/Light-Fidelity (LiFi). These high performances have the potential to be achieved at low manufacturing costs, eventually translating to a more favourable performance over cost ratio compared to today’s solutions, e.g., silicon solar cells or organic LEDs (OLEDs).
Using these perovskites absorber in PV technology fabricated by Oxford University, the project partners Eulambia and Optiva Media managed to measure 4.8MHz of -3 dB bandwidth the highest ever achieved with Photovoltaic (PV) Cell in the current state of the art. This achievement opens a new perspective on the capability of perovskite solar cells to function as both energy-harvesting devices and high-speed data detectors.
More information can be found on the project’s news “We share a big step forward”