A5032332273- Nanowire Synthesis and Applications
- Nonlinear Optical Materials Research
- GaN-based semiconductor devices and materials
- ZnO doping and properties
- Photorefractive and Nonlinear Optics
- Molecular Junctions and Nanostructures
- Quantum and electron transport phenomena
- Spectroscopy and Quantum Chemical Studies
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
Weizmann Institute of Science
2013-2021
Facile molecular self-assembly affords a new family of organic nanocrystals that, unintuitively, exhibit significant nonlinear optical response (second harmonic generation, SHG) despite the relatively small dipole moment constituent molecules. The are self-assembled in aqueous media from simple monosubstituted perylenediimide (PDI) building blocks. Control over crystal dimensions can be achieved via modification assembly conditions. combination fabrication process with ability to generate...
The challenge of nanowire assembly is still one the major obstacles toward their efficient integration into functional systems. One strategy to overcome this obstacle guided growth approach, in which in-plane nanowires by epitaxial and graphoepitaxial relations with substrate yield dense arrays aligned nanowires. This method relies on crystalline substrates are generally expensive incompatible silicon-based technologies. In work, we expand approach noncrystalline demonstrate horizontal along...
The effect of electron–vibration interaction in atomic-scale junctions with a single conduction channel was widely investigated both theoretically and experimentally. However, the more general case several channels has received very little attention. Here we study multichannel molecular junctions, formed by introduction either benzene or carbon dioxide between platinum electrodes. By combining shot noise differential conductance measurements, analyze vibration activation on view distribution...
Abstract Polar materials display a series of interesting and widely exploited properties owing to the inherent coupling between their fixed electric dipole any action that involves change in charge distribution. Among these are piezoelectricity, ferroelectricity, pyroelectricity, bulk photovoltaic effect. Here we report observation related property this series, where an external field applied parallel or anti-parallel polar axis crystal leads increase decrease its second-order nonlinear...