Solar cells that power up indoors

Australian startup Halocell Energy is launching a solar cell module capable of charging electronic devices like remote controls just using indoor lights.

The modules aim to replace disposable batteries with a more sustainable solution made from perovskites, which have a unique crystal structure that efficiently converts a wide range of light wavelengths into electricity. 

The ability to charge small electronics such as remote controls, wireless keyboards, sensors from ambient light could render polluting batteries obsolete.

While perovskite solar technology has largely been confined to lab experiments, Halocell's upcoming launch marks the commercial debut of the technology, making these advanced solar cells available for everyday use.

A recent boost to Halocell’s technology is its two-year commercial deal forged with First Graphene, which supplies the graphene coating that is added to the solar cells. 

"These graphene-enhanced modules are up to five times more efficient than conventional silicon solar cells."

First Graphene confirmed last month that Halocell Energy was on course to release its first commercially-available indoor perovskite solar cell module.

“These graphene-enhanced modules are up to five times more efficient than conventional silicon solar cells,” First Graphene said, adding that graphene also reduces reliance on materials like gold and silver, slashing production expenses by 80 per cent.

Moreover, Halocell’s roll-to-roll dispersion technique is expected to lower manufacturing costs and enable the cells to be produced in large quantities.

Hallocell CEO Paul Moonie recently shared that the company was preparing for commercial rollout to boost customer numbers in the lead up to the opening of its manufacturing facility in Wagga Wagga.

Once the facility is up and running, it hopes to scale production up to 70 million units annually.

"Halocell is Australia’s chance to lead the world in PV again and be the global leader of perovskite manufacturing." the startup says.

The company is also working with partners like V-TOL Aerospace and Li-S Energy to integrate its next-gen solar technology into drones, enabling them to fly from dawn to dusk without needing to recharge.

Another company working on low-light energy harvesting is California's Ambient Photonics, which has developed a dye-sensitised solar cell for low-light environments with the potential to power connected devices in the home and beyond.