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Andrey Shchepetov
Researcher at VTT Technical Research Centre of Finland
Publications - 51
Citations - 2101
Andrey Shchepetov is an academic researcher from VTT Technical Research Centre of Finland. The author has contributed to research in topics: Silicon & Terahertz radiation. The author has an hindex of 20, co-authored 50 publications receiving 1952 citations. Previous affiliations of Andrey Shchepetov include university of lille & Lille University of Science and Technology.
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Journal ArticleDOI
Resonant and voltage-tunable terahertz detection in InGaAs /InP nanometer transistors
A. El Fatimy,Frederic Teppe,Nina Dyakonova,Wojciech Knap,Dalius Seliuta,Gintaras Valušis,Andrey Shchepetov,Yannick Roelens,Sylvain Bollaert,Alain Cappy,Sergey Rumyantsev +10 more
TL;DR: In this article, high electron mobility nanometer InGaAs∕AlInAs transistors were used to detect terahertz radiation at 1.8-3.1THz frequency range.
Journal ArticleDOI
Nanophononics: state of the art and perspectives
Sebastian Volz,Jose Ordonez-Miranda,Andrey Shchepetov,Mika Prunnila,Jouni Ahopelto,Thomas Pezeril,Gwenaelle Vaudel,Vitaly Gusev,Pascal Ruello,Eva M. Weig,Martin Schubert,Mike Hettich,Martin Grossman,Thomas Dekorsy,Francesc Alzina,Bartlomiej Graczykowski,Emigdio Chavez-Angel,J. Sebastian Reparaz,Markus R. Wagner,Clivia M. Sotomayor-Torres,Shiyun Xiong,Sanghamitra Neogi,Sanghamitra Neogi,Davide Donadio +23 more
TL;DR: In this article, the authors assess the state of the art of nanophononics, describing the recent achievements and the open challenges in nanoscale heat transport, coherent phonon generation and exploitation, and in nano- and optomechanics.
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Interfacial engineering by proteins: exfoliation and functionalization of graphene by hydrophobins
Päivi Laaksonen,Markku Kainlauri,Timo Laaksonen,Andrey Shchepetov,Hua Jiang,Jouni Ahopelto,Markus Linder +6 more
TL;DR: This work presents a method for the exfoliation and functionalization of graphene sheets by an amphiphilic protein, which belongs to a class of proteins called hydrophobins that interacts strongly with hydrophobic surfaces, such as graphite and silicon.
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Reduction of the thermal conductivity in free-standing silicon nano-membranes investigated by non-invasive Raman thermometry
Emigdio Chavez-Angel,Juan Sebastián Reparaz,Jordi Gomis-Bresco,Markus R. Wagner,J. Cuffe,Bartlomiej Graczykowski,Andrey Shchepetov,Hua Jiang,Mika Prunnila,Jouni Ahopelto,Francesc Alzina,C. M. Sotomayor Torres +11 more
TL;DR: In this paper, the reduction of the thermal conductivity in ultra-thin suspended Si membranes with high crystalline quality was investigated using Raman thermometry, a novel contactless technique for temperature determination.
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Room-temperature terahertz emission from nanometer field-effect transistors
Nina Dyakonova,A. El Fatimy,Jerzy Łusakowski,Wojciech Knap,Michel Dyakonov,M.A. Poisson,Erwan Morvan,Sylvain Bollaert,Andrey Shchepetov,Yannick Roelens,Christophe Gaquiere,Didier Theron,Alain Cappy +12 more
TL;DR: In this paper, the room-temperature generation of terahertz radiation in nanometer gate length InAlAs∕InGaAs and AlGaN∕GaN high-mobility transistors is reported.