organic semiconductors tagged posts

Physics research groups have generated free electrons from organic semiconductors when combined with a single atomic layer of molybdenum disulfide, a recently discovered 2D semiconductor.

Imagine printing electronic devices using a simple inkjet printer – or even painting a solar panel onto the wall of a building. Such technology would slash the cost of manufacturing electronic devices and enable new ways to integrate them into our everyday lives. Over the last two decades, a type of material called organic semiconductors, made out of molecules or polymers, has been developed for such purposes...

Breakthrough could launch organic electronics beyond cell phone screens Researchers used ultraviolet light to excite molecules in a semiconductor, triggering reactions that split up and activated a dopant Credit: Jing Wang and Xin Lin

A discovery by Princeton University, Georgia Institute of Technology and Humboldt University in Berlin points the way to more widespread use of an advanced technology known as organic electronics. The research focuses on organic semiconductors, a class of materials prized for their applications in emerging technologies such as flexible electronics, solar energy conversion, and high-quality color displays for smartphones and televisions...

Fabian Zechmeister (left) and Maximilian Raab (right) demonstrate the fluorescence of a perylene bisimide solution. Credit: Image courtesy of Vienna University of Technology, TU Vienna

Perylene bisimides are a heavily investigated and sought after class of organic pigments, since they show interesting dye properties. While these compounds are red pigments in the solid state, when dissolved, they generate bright yellowish-green solutions under UV irradiation. Aside their optical appeal; organic molecules that appear colored in daylight often also show intriguing electronic properties. Thus, organic dyes are promising lightweight materials for application as e.g. organic semiconductors, but also in for instance LCD displays or solar cells.

The laboratory of Dr. Miriam M...

Polarised Raman spectroscopy results for TIPS pentacene sample. Comparison of measured (top) polarised Raman data with the best fitting simulated results (bottom). The intensities of the 1374 cm−1 and 1576 cm−1 modes measured with tilts of both 0° and 30° around the -axis are considered. In each plot the normalised intensity of the Raman peak is plotted against the polariser angle (θP) and analyser angle (θA).

New technology could revolutionize printed electronics by enabling high quality semiconducting molecular crystals to be directly spray-deposited on any surface. University of Surrey and National Physical Laboratory’s research allows to convert organic semiconducting inks into isolated crystals through a scalable process, suitable for a wide range of molecules...