Condensed Matter

   

Fine-Tune Carbon Nanotubes

Authors: George Rajna

Scientists from the Skoltech Center for Photonics and Quantum Materials (CPQM) have developed a novel method to fine-tune the optoelectrical properties of single-walled carbon nanotubes (SWCNT) by applying an aerosolized dopant solution on their surface, thus opening up new avenues for SWCNT application in optoelectronics. [36] A DGIST research team discovered a theory that can expand the development of valleytronics technology, which has been drawing attention as a next generation semiconductor technology. [35] To produce the new ultra-thin transistor, calcium fluoride was selected as the insulating material. [34] University of Illinois electrical engineers have cleared another hurdle in high-power semiconductor fabrication by adding the field's hottest material-beta-gallium oxide-to their arsenal. [33] Transistors are tiny switches that form the bedrock of modern computing; billions of them route electrical signals around inside a smartphone, for instance. Quantum computers will need analogous hardware to manipulate quantum information. [32] "The realization of such all-optical single-photon devices will be a large step towards deterministic multi-mode entanglement generation as well as high-fidelity photonic quantum gates that are crucial for all-optical quantum information processing," says Tanji-Suzuki. [31] Researchers at ETH have now used attosecond laser pulses to measure the time evolution of this effect in molecules. [30] A new benchmark quantum chemical calculation of C2, Si2, and their hydrides reveals a qualitative difference in the topologies of core electron orbitals of organic molecules and their silicon analogues. [29] A University of Central Florida team has designed a nanostructured optical sensor that for the first time can efficiently detect molecular chirality-a property of molecular spatial twist that defines its biochemical properties. [28]

Comments: 58 Pages.

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[v1] 2019-07-25 03:25:25

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