Science Daily June 22, 2022
Among materials systems suitable for thin-film electronics, organic semiconductors are of particular interest; their low cost, biocompatible carbon-based materials, and deposition by simple techniques such as evaporation or printing enable organic semiconductor devices to be used for ubiquitous electronics, such as those used on or in the human body or on clothing and packages. An international team of researchers (Germany, Spain) has developed organic bipolar transistors with outstanding device performance: a previously undescribed vertical architecture and highly crystalline organic rubrene thin films yield devices with high differential amplification (more than 100) and superior high-frequency performance over conventional devices. They give insight into the minority carrier diffusion length—a key parameter in organic semiconductors. The work opens the door to new device concepts of high-performance organic electronics with ever faster switching speeds…read more. Open Access TECHNICAL ARTICLEÂ
OBJT operation. Credit: Nature, 2022; 606 (7915): 700-705Â