Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Oleg Lupan"'
Autor:
Rajat Nagpal, Cristian Lupan, Adrian Bîrnaz, Alexandr Sereacov, Erik Greve, Monja Gronenberg, Leonard Siebert, Rainer Adelung, Oleg Lupan
Publikováno v:
Biosensors, Vol 14, Iss 6, p 293 (2024)
Zinc oxide (ZnO) is considered to be one of the most explored and reliable sensing materials for UV detection due to its excellent properties, like a wide band gap and high exciton energy. Our current study on a photodetector based on tetrapodal ZnO
Externí odkaz:
https://doaj.org/article/7e04e99722b040e19ceb56bd7087470d
Autor:
Oleg Lupan, Mihai Brinza, Julia Piehl, Nicolai Ababii, Nicolae Magariu, Lukas Zimoch, Thomas Strunskus, Thierry Pauporte, Rainer Adelung, Franz Faupel, Stefan Schröder
Publikováno v:
Chemosensors, Vol 12, Iss 5, p 76 (2024)
Certain biomarkers in exhaled breath are indicators of diseases in the human body. The non-invasive detection of such biomarkers in human breath increases the demand for simple and cost-effective gas sensors to replace state-of-the-art gas chromatogr
Externí odkaz:
https://doaj.org/article/96aab7636a764f2cadab52f3f4736a49
Autor:
Veaceslav Sprincean, Haoyi Qiu, Tim Tjardts, Oleg Lupan, Dumitru Untilă, Cenk Aktas, Rainer Adelung, Liviu Leontie, Aurelian Carlescu, Silviu Gurlui, Mihail Caraman
Publikováno v:
Materials, Vol 17, Iss 2, p 405 (2024)
This work studies the technological preparation conditions, morphology, structural characteristics and elemental composition, and optical and photoluminescent properties of GaSe single crystals and Eu-doped β–Ga2O3 nanoformations on ε–GaSe:Eu s
Externí odkaz:
https://doaj.org/article/9564d48f79b44b62ad7f08ff9359fa39
Autor:
Veaceslav Sprincean, Liviu Leontie, Iuliana Caraman, Oleg Lupan, Rainer Adeling, Silviu Gurlui, Aurelian Carlescu, Corneliu Doroftei, Mihail Caraman
Publikováno v:
Nanomaterials, Vol 13, Iss 14, p 2052 (2023)
GaSxSe1−x solid solutions are layered semiconductors with a band gap between 2.0 and 2.6 eV. Their single crystals are formed by planar packings of S/Se-Ga-Ga-S/Se type, with weak polarization bonds between them, which allows obtaining, by splittin
Externí odkaz:
https://doaj.org/article/af342d0d66984ec3b0ffdfe3e6e08bcd
Autor:
Mihai Brinza, Stefan Schröder, Nicolai Ababii, Monja Gronenberg, Thomas Strunskus, Thierry Pauporte, Rainer Adelung, Franz Faupel, Oleg Lupan
Publikováno v:
Biosensors, Vol 13, Iss 5, p 538 (2023)
Certain molecules act as biomarkers in exhaled breath or outgassing vapors of biological systems. Specifically, ammonia (NH3) can serve as a tracer for food spoilage as well as a breath marker for several diseases. H2 gas in the exhaled breath can be
Externí odkaz:
https://doaj.org/article/d2e5c361c7824343bd56d3e317ee28c2
Autor:
Stefan Schröder, Nicolai Ababii, Mihai Brînză, Nicolae Magariu, Lukas Zimoch, Mani Teja Bodduluri, Thomas Strunskus, Rainer Adelung, Franz Faupel, Oleg Lupan
Publikováno v:
Polymers, Vol 15, Iss 3, p 524 (2023)
Metal oxide gas sensors are of great interest for applications ranging from lambda sensors to early hazard detection in explosive media and leakage detection due to their superior properties with regard to sensitivity and lifetime, as well as their l
Externí odkaz:
https://doaj.org/article/a3c48eee51fe428fbb4746b715dad144
Autor:
Vasile Postica, Alexander Vahl, Nicolae Magariu, Maik-Ivo Terasa, Mathias Hoppe, Bruno Viana, Patrick Aschehoug, Thierry Pauporté, Ion Tiginyanu, Oleksandr Polonskyi, Victor Sontea, Lee Chow, Lorenz Kienle, Rainer Adelung, Franz Faupel, Oleg Lupan
Publikováno v:
Journal of Engineering Science (Chişinău), Vol XXV, Iss 3, Pp 41-51 (2018)
In this study, Ag-doped ZnO (ZnO:Ag) nanostructured films were functionalized with silver nanoparticles (Ag NPs), silver-platinum bimetallic nanoparticles (AgPt NPs) and silver-gold bimetallic NPs (AgAu NPs) using a gas phase PVD process based on a H
Externí odkaz:
https://doaj.org/article/1a691e40568d45339522116616ff19a8
Sensing performances of pure and hybridized carbon nanotubes-ZnO nanowire networks: A detailed study
Autor:
Oleg Lupan, Fabian Schütt, Vasile Postica, Daria Smazna, Yogendra Kumar Mishra, Rainer Adelung
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
Abstract In this work, the influence of carbon nanotube (CNT) hybridization on ultraviolet (UV) and gas sensing properties of individual and networked ZnO nanowires (NWs) is investigated in detail. The CNT concentration was varied to achieve optimal
Externí odkaz:
https://doaj.org/article/22e79b44f4dd4d4ea02bfd5af9126927
Autor:
Oleg Lupan, Helge Krüger, Leonard Siebert, Nicolai Ababii, Niklas Kohlmann, Artur Buzdugan, Mani Teja Bodduluri, Nicolae Magariu, Maik-Ivo Terasa, Thomas Strunskus, Lorenz Kienle, Rainer Adelung, Sandra Hansen
Publikováno v:
Chemosensors, Vol 9, Iss 9, p 252 (2021)
Lithium-ion batteries (LIBs) still need continuous safety monitoring based on their intrinsic properties, as well as due to the increase in their sizes and device requirements. The main causes of fires and explosions in LIBs are heat leakage and the
Externí odkaz:
https://doaj.org/article/739a5868c198457bac7c53b4a3c3cc7f
Autor:
Raimonds Meija, Stefano Signetti, Arnim Schuchardt, Kerstin Meurisch, Daria Smazna, Matthias Mecklenburg, Karl Schulte, Donats Erts, Oleg Lupan, Bodo Fiedler, Yogendra Kumar Mishra, Rainer Adelung, Nicola M. Pugno
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Aerographite is a highly porous and lightweight carbon material obtained from hollow tubular tetrapod building units. Here, the authors present a comprehensive investigation of tetrapod deformation mechanisms which are at the core of aerographite nan
Externí odkaz:
https://doaj.org/article/21d05b51394d4af8aa14396ff2ae563f