Researchers from the University of Tokyo have achieved a significant milestone in the field of organic electronics. They have successfully converted 920 MHz alternating current (AC) power into direct current (DC) power with a practical efficiency (approximately 5%) using a rectifying diode based on organic semiconductors. This marks a world-first achievement.
The dramatic improvement in the performance of the organic rectifying diode was realized by applying a dimeric complex with reducing properties to the electrode surface. This novel approach has resulted in a power conversion efficiency over 1000 times higher than previously reported studies.
Furthermore, the team successfully achieved a high current density of 100 A/cm2 at a remarkably low voltage of 2 V.
This groundbreaking development is expected to significantly contribute to the application and advancement of wireless communication technologies, particularly for Internet of Things (IoT) devices. The increased efficiency and low operating voltage pave the way for more practical and high-performance organic electronic devices in the future.