Ushering in ultrafast cluster electronics
Hokkaido University researchers have developed a computational method that can predict how clusters of molecules behave and interact over time, providing critical insight for future electronics. Their findings, published in the journal Scientific Reports, could lead to the creation of a new field of science called cluster molecular electronics.
Single molecule electronics is a relatively new, rapidly progressing branch of nanotechnology using individual molecules as electronic components in devices.
Now, Hiroto Tachikawa and colleagues at Hokkaido University in Japan have developed a computational approach that can predict how clusters of molecules behave over time, which could help launch a new field of study for cluster molecule electronics. Their approach combines two methods traditionally used for quantum chemical and molecular dynamic calculations.
They used their method to predict the changes in a computer-simulated cluster of benzene molecules over time. When light is applied to the T-shaped benzene clusters, they reorganize themselves into a single stack; an interaction known as pi-stacking.
This modification from one shape to another changes the cluster's electrical conductivity, making it act like an on-off switch. The team then simulated the addition of a molecule of water to the cluster and found that pi-stacking happened significantly faster. This pi-stacking is also reversible, which would allow switching back and forth between the on and off modes.
In contrast, previous studies had shown that the addition of a molecule of water to a single molecule electronic device impedes its performance.
“Our findings could usher in a new field of study that investigates the electronic performance of different numbers, types and combinations of molecular clusters, potentially leading to the development of cluster molecule electronic devices,” Tachikawa commented.
Media Contact
All latest news from the category: Physics and Astronomy
This area deals with the fundamental laws and building blocks of nature and how they interact, the properties and the behavior of matter, and research into space and time and their structures.
innovations-report provides in-depth reports and articles on subjects such as astrophysics, laser technologies, nuclear, quantum, particle and solid-state physics, nanotechnologies, planetary research and findings (Mars, Venus) and developments related to the Hubble Telescope.
Newest articles
Sea slugs inspire highly stretchable biomedical sensor
USC Viterbi School of Engineering researcher Hangbo Zhao presents findings on highly stretchable and customizable microneedles for application in fields including neuroscience, tissue engineering, and wearable bioelectronics. The revolution in…
Twisting and binding matter waves with photons in a cavity
Precisely measuring the energy states of individual atoms has been a historical challenge for physicists due to atomic recoil. When an atom interacts with a photon, the atom “recoils” in…
Nanotubes, nanoparticles, and antibodies detect tiny amounts of fentanyl
New sensor is six orders of magnitude more sensitive than the next best thing. A research team at Pitt led by Alexander Star, a chemistry professor in the Kenneth P. Dietrich…