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Effective detection of spatio-temporal carrier dynamics by carrier capture.

08:00 EDT 9th April 2019 | BioPortfolio

Summary of "Effective detection of spatio-temporal carrier dynamics by carrier capture."

The spatio-temporal dynamics of electrons moving in a two-dimensional plane is challenging to detect when the required resolution shrinks simultaneously to nanometer length and subpicosecond time scale. We propose a detection scheme relying on phonon-induced carrier capture from two-dimensional unbound states into the bound states of an embedded quantum dot. This capture process happens locally and we here explore, if this locality is sufficient to use the carrier capture process as detection of the ultrafast diffraction of electrons from an obstacle in the two-dimensional plane. As an example we consider an electronic wave packet traveling in a semiconducting monolayer of the transition metal dichalcogenide MoSe<sub>2</sub>, and we study the scattering-induced dynamics using a single particle Lindblad approach. Our results offer a new way to high resolution detection of the spatio-temporal carrier dynamics.

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This article was published in the following journal.

Name: Journal of physics. Condensed matter : an Institute of Physics journal
ISSN: 1361-648X
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Medical and Biotech [MESH] Definitions

An enzyme of long-chain fatty acid synthesis, that adds a two-carbon unit from malonyl-(acyl carrier protein) to another molecule of fatty acyl-(acyl carrier protein), giving a beta-ketoacyl-(acyl carrier protein) with the release of carbon dioxide. EC 2.3.1.41.

An NAD-dependent enzyme that catalyzes the oxidation of acyl-[acyl-carrier protein] to trans-2,3-dehydroacyl-[acyl-carrier protein]. It has a preference for acyl groups with a carbon chain length between 4 to 16.

An enzyme that catalyzes the oxidation of acyl-[acyl-carrier protein] to trans-2,3-dehydroacyl-[acyl-carrier protein] in the fatty acid biosynthesis pathway. It has a preference for acyl derivatives with carbon chain length from 4 to 16.

A enzyme that catalyzes the transfer of acetyl groups from ACETYL CoA to acyl-carrier protein to form COENZYME A and acetyl-acyl-carrier protein.

Consists of a polypeptide chain and 4'-phosphopantetheine linked to a serine residue by a phosphodiester bond. Acyl groups are bound as thiol esters to the pantothenyl group. Acyl carrier protein is involved in every step of fatty acid synthesis by the cytoplasmic system.

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