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 […]
Category Archives: Thin film technology
Researchers develop a paper-thin loudspeaker
MIT News April 26, 2022 Ultra-thin, lightweight, high-performance, low-cost, and energy-efficient loudspeakers that can be deployed over a wide area have become increasingly attractive to both traditional audio systems and emerging applications such as active noise control and immersive entertainment. Researchers at MIT have proposed a thin-film loudspeaker based on an active piezoelectric layer embossed with an array of microscale domes. Actuation of the freestanding domes contributes to excellent sound generation by the loudspeaker regardless of the rigid surface on which it is bonded. The acoustic performance is further tunable by designing the dome dimensions. The proposed loudspeaker also exhibits […]