Cambridge Photon Technology secures £150k to boost solar panel efficiency

A patented photon-multiplier material that converts high-energy photons into silicon-optimised infrared light is the core product of Cambridge Photon Technology, which has just raised an estimated £150k. This funding round brings the company's post-money valuation to approximately £5m. The technology acts as a drop-in upgrade for existing silicon solar panels, allowing them to produce up to 15% more power without requiring changes to manufacturing processes.

The business targets solar panel manufacturers and owners seeking to break the performance ceiling of photovoltaic technology to reach levels above 28%. Founded in 2019 as a spin-out from the University of Cambridge's Cavendish Laboratory, the firm operates within the natural sciences and engineering research sector, focusing on renewable energy semiconductor manufacturing.

This latest investment follows a total of £1.7m raised during 2025. While accounts for the year ending 30 September 2025 recorded eight staff members, current headcount has reached 12 according to recent professional network data. The share allotment for this round took place in May, with formal documentation filed in July.