- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Molecular Junctions and Nanostructures
- Force Microscopy Techniques and Applications
- Innovative Educational Techniques
- Computational Physics and Python Applications
- Educational Technology and Pedagogy
- Analytical Chemistry and Sensors
- Quantum and electron transport phenomena
- Digital Media and Visual Art
Chung-Ang University
2024
Institute of High Energy Physics
2005-2014
Peking University
2000
Received 27 December 2004DOI:https://doi.org/10.1103/PhysRevD.71.019901©2005 American Physical Society
We report on the growth and characterization of crystalline 1,1-dicyano-2,2-(4-dimethylaminophenyl)ethylene (DDME) thin film with electrical switching property. X-ray diffraction analysis indicates that bulk single-crystal DDME belongs to monoclinic, space group P21, Z = 2 structure. Optical spectroscopy shows chemical structure is consistent powder material, suggesting material very stable during vacuum thermal deposition process. Scanning probe microscopy transmission electron observations...
A thin film of 1,1-dicyano-2,2-(4-dimethylaminophenyl) ethylene (DDME) has been grown by a modified vacuum deposition. The films were characterized Fourier transform infrared spectroscopy, transmission electron microscopy, and scanning tunneling microscopy (STM). Highly ordered parallel molecular stacks repeatedly observed with STM under ambient conditions. dc current–voltage (I–V) characteristics device Au/DDME/Au measured, the was found to possess good electrical bistability electrochromic...