University of Cambridge researchers have developed a tweak to the materials used in semiconductors enabling a 70% performance boost, according to a press release. The study found that orienting the crystal growth of copper oxide semiconductors diagonally can accelerate charge movement, resulting in significantly enhanced performance. Semiconductors play a pivotal role in the operation of electrolyzers used to convert water into clean hydrogen fuel using solar power.

How it works: Cuprous oxide, although known for its potential as a cheap alternative to silicon, has performance limitations due to charge losses within the material. The Cambridge team tackled this issue by growing the crystals in a specific orientation, allowing electric charges to travel faster and further. This resulted in a substantial increase in performance and stability of the copper oxide light harvester, or photocathode, over existing oxide photocathodes.

Looking forward: The research, supported by various international institutions, marks a step forward in the transition away from fossil fuels. While more research is needed, the findings demonstrate how low-cost materials can be optimized for efficient energy generation, which can play a vital role in the energy transition.

Tags: