Výsledky vyhledávání - "Martin Konôpka"

Voltage- and Redox State-Triggered Oxygen Adatom Conductance Switch

Autor: Quanzhen Zhang, Rui Xu, Huan Fei Wen, Yan Jun Li, Ján Brndiar, Masato Miyazaki, Lev Kantorovich, Ivan Štich, Zhihai Cheng, Yasuhiro Sugawara, Yuuki Adachi, Martin Konôpka, Hongqian Sang

Publikováno v: The Journal of Physical Chemistry C. 125:26801-26807

Switches are omnipresent in all electronic devices. Miniaturization reduced the size of switches down to atomic dimensions. While on-surface tip-tuned molecular switches have recently been widely s...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc7743dd7c56796c01327ae82f54fc3e
https://doi.org/10.1021/acs.jpcc.1c07568

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Correlation between Molecular Stereostructure, Film Microstructure, and Electronic Structure of Polyfluorene and Fluorene Based Alternating Copolymers F8BT and PFO–DBT

Autor: Vojtech Nádaždy, P. Bokes, Karol Vegso, Tomáš Váry, Katarína Gmucová, Martin Konôpka

Publikováno v: The Journal of Physical Chemistry C. 125:8045-8054

Identifying key parameters that can help control molecular ordering in the active layer of high-performance organic devices is an important topical issue. Finding a correlation between the spatial ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69362c595bd805498584d855a807baec
https://doi.org/10.1021/acs.jpcc.0c10725

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On the crystalline polyfluorene structure and optical spectra

Autor: Martin Konôpka, P. Bokes

Publikováno v: APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2021).

We study the polyfluorene crystal using computational modelling based on the density functional theory. We assume a geometry with two monomers per unit cell and periodicity along the polymer's backbone structure. The stable structure determined at th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c14438bc096bb2bba7612460a92da6b0
https://doi.org/10.1063/5.0067375

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Twin lead ballistic conductor based on nanoribbon edge transport

Autor: Martin Konôpka, Peter Dieška

If a device like a graphene nanoribbon (GNR) has all its four corners attached to electric current leads, the device becomes a quantum junction through which two electrical circuits can interact. We study such system theoretically for stationary curr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::836143e5773c6c168f500002bacff7b7

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Molecular Mechanochemistry Understood at the Nanoscale: Thiolate Interfaces and Junctions with Copper Surfaces and Clusters

Autor: Dominik Marx, Ivan Stich, Robert Turanský, Martin Konôpka, Matúš Dubecký

Publikováno v: The Journal of Physical Chemistry C. 113:8878-8887

Two very different approaches to activate chemical bonds, nanoscale mechanochemistry and the ubiquitous thermochemistry, are studied and compared for a range of different thiolate/copper interfaces and junctions using self-assembled monolayers (SAMs)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9dbed8258eec147158c22c9ddd1109a2
https://doi.org/10.1021/jp9017025

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Conductance of graphene flakes contacted at their corners

Autor: Martin Konôpka

Publikováno v: Journal of physics. Condensed matter : an Institute of Physics journal. 27(43)

Linear conductance of junctions formed by graphene flakes with order of nanometer-thick electrodes attached at the corners of the flakes is studied. The explored structures have sizes up to 20000 atoms and the conductance is studied as a function of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::285eba22d859ffc2d6231297be5290e5
https://pubmed.ncbi.nlm.nih.gov/26436762

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