Discovery That Diamonds Can Generate Electricity When Bended
It has been determined that developed ultra-thin polycrystalline diamond membranes emit stable voltage signals when bent, transforming into an active energy source.
Researchers at the University of Hong Kong have achieved a significant first by discovering that diamond, known to lack piezoelectric properties, can generate electricity when bent.
Diamond's Electricity Generation Mechanism
Researchers from the Faculty of Engineering at the University of Hong Kong have revealed that diamond, long accepted as lacking piezoelectric properties, can generate electricity. The researchers found that ultra-thin and flexible polycrystalline diamond membranes produced through their developed method emit measurable and stable voltage signals during bending.
Polarization and Current Generation
Within the scope of the study conducted by Prof. Dr. Zhiqin Chu and Prof. Dr. Yuan Lin, it was determined that diamond, when given a bendable structure, creates electrical charge polarization at crystal boundaries. It was noted that this polarization creates a potential difference between the upper and lower surfaces of the membrane, thereby generating an electric current.
Material Transforming into an Active Source
Recalling that diamond, known for its hardness, high thermal conductivity, and chemical stability, has until now been evaluated solely as a passive carrier material, the researchers reported that with this new discovery, the material has transformed into an active electricity source. Durability tests also proved that the electric current provided by the diamond membrane is independent of external factors and reproducible.
Medical and Technological Applications
Experts stated that diamond has the potential to be used in medical technologies thanks to its human tissue-compatible and non-toxic structure. It was stated that this new method could help develop systems capable of providing the energy needed by implants such as pacemakers and internal body sensors from body movements. Researchers also mentioned that the findings could pave the way for developing new applications in areas such as micro-energy systems, wearable technologies, and high-precision next-generation sensors.