Home > News > Joining up nanocircuits
November 5th, 2007
Joining up nanocircuits
Abstract:
A team of scientists based in the UK and Germany have covalently bonded strings of porphyrin molecules on a gold surface - a step forward in the quest to develop nano-electronics.1
Other researchers have linked more than two molecules on surfaces as supramolecular structures before, but the patterns were held together only by non-covalent methods, such as hydrogen bonding and van der Waals interactions.
Non-covalent links are reversible and relatively fragile, says Stefan Hecht, chair of organic chemistry and functional materials at Humboldt University in Berlin and a member of the team. But covalent bonds are more stable and can transport electrical charge.
The team uses porphyrins, flat square-shaped molecules with four phenyl arms, one extending from each edge. The molecules are synthesized so that some or all the arms have a bromine atom at the end. The bromine atoms are removed by heating the molecules, leaving behind carbon radicals that combine through covalent carbon-carbon bonds, linking the porphyrin molecules.
Source:
rsc.org
Bookmark:
| Related News Press |
Chip Technology
Lab to industry: InSe wafer-scale breakthrough for future electronics August 8th, 2025
A 1960s idea inspires NBI researchers to study hitherto inaccessible quantum states June 6th, 2025
Programmable electron-induced color router array May 14th, 2025
Memory Technology
Researchers tackle the memory bottleneck stalling quantum computing October 3rd, 2025
First real-time observation of two-dimensional melting process: Researchers at Mainz University unveil new insights into magnetic vortex structures August 8th, 2025
Utilizing palladium for addressing contact issues of buried oxide thin film transistors April 5th, 2024
Nanoelectronics
Lab to industry: InSe wafer-scale breakthrough for future electronics August 8th, 2025
Interdisciplinary: Rice team tackles the future of semiconductors Multiferroics could be the key to ultralow-energy computing October 6th, 2023
Key element for a scalable quantum computer: Physicists from Forschungszentrum Jülich and RWTH Aachen University demonstrate electron transport on a quantum chip September 23rd, 2022
Reduced power consumption in semiconductor devices September 23rd, 2022
Discoveries
Researchers develop molecular qubits that communicate at telecom frequencies October 3rd, 2025
Next-generation quantum communication October 3rd, 2025
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
Announcements
Rice membrane extracts lithium from brines with greater speed, less waste October 3rd, 2025
Researchers develop molecular qubits that communicate at telecom frequencies October 3rd, 2025
Next-generation quantum communication October 3rd, 2025
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||