Search Results - "Lupan, Oleg"

Single and Networked ZnO–CNT Hybrid Tetrapods for Selective Room-Temperature High-Performance Ammonia Sensors by Schütt, Fabian, Postica, Vasile, Adelung, Rainer, Lupan, Oleg

“…Highly porous hybrid materials with unique high-performance properties have attracted great interest from the scientific community, especially in the field of…”
Get full text

Rapid Fabrication Technique for Interpenetrated ZnO Nanotetrapod Networks for Fast UV Sensors by Gedamu, Dawit, Paulowicz, Ingo, Kaps, Sören, Lupan, Oleg, Wille, Sebastian, Haidarschin, Galina, Mishra, Yogendra Kumar, Adelung, Rainer

“…Two flame‐based synthesis methods are presented for fabricating ZnO‐nanostructure‐based UV photodetectors: burner flame transport synthesis (B‐FTS)and crucible…”
Get full text

Acetone Sensors Based on Al-Coated and Ni-Doped Copper Oxide Nanocrystalline Thin Films by Litra, Dinu, Chiriac, Maxim, Ababii, Nicolai, Lupan, Oleg

“…Acetone detection is of significant importance in various industries, from cosmetics to pharmaceuticals, bioengineering, and paints. Sensor manufacturing…”
Get full text

Direct Growth of Freestanding ZnO Tetrapod Networks for Multifunctional Applications in Photocatalysis, UV Photodetection, and Gas Sensing by Mishra, Yogendra Kumar, Modi, Gaurav, Cretu, Vasilii, Postica, Vasile, Lupan, Oleg, Reimer, Tim, Paulowicz, Ingo, Hrkac, Viktor, Benecke, Wolfgang, Kienle, Lorenz, Adelung, Rainer

“…Growth of freestanding nano- and microstructures with complex morphologies is a highly desired aspect for real applications of nanoscale materials in various…”
Get full text

Sensing performances of pure and hybridized carbon nanotubes-ZnO nanowire networks: A detailed study by Lupan, Oleg, Schütt, Fabian, Postica, Vasile, Smazna, Daria, Mishra, Yogendra Kumar, Adelung, Rainer

“…In this work, the influence of carbon nanotube (CNT) hybridization on ultraviolet (UV) and gas sensing properties of individual and networked ZnO nanowires…”
Get full text

Localized Synthesis of Iron Oxide Nanowires and Fabrication of High Performance Nanosensors Based on a Single Fe2O3 Nanowire by Lupan, Oleg, Postica, Vasile, Wolff, Niklas, Polonskyi, Oleksandr, Duppel, Viola, Kaidas, Victor, Lazari, Eugen, Ababii, Nicolai, Faupel, Franz, Kienle, Lorenz, Adelung, Rainer

“…A composed morphology of iron oxide microstructures covered with very thin nanowires (NWs) with diameter of 15–50 nm has been presented. By oxidizing metallic…”
Get full text

Highly selective and ultra-low power consumption metal oxide based hydrogen gas sensor employing graphene oxide as molecular sieve by Rasch, Florian, Postica, Vasile, Schütt, Fabian, Mishra, Yogendra Kumar, Nia, Ali Shaygan, Lohe, Martin R., Feng, Xinliang, Adelung, Rainer, Lupan, Oleg

“…[Display omitted] •Coating of zinc oxide microwires (ZnO MWs) with graphene oxide (GO) membrane for gas sensing.•Strong increase in selectivity toward H2 gas…”
Get full text

Room temperature gas nanosensors based on individual and multiple networked Au-modified ZnO nanowires by Lupan, Oleg, Postica, Vasile, Pauporté, Thierry, Viana, Bruno, Terasa, Maik-Ivo, Adelung, Rainer

“…[Display omitted] •The individual and multiple networked Au/ZnO nanowires were integrated into nanosensor devices.•The influences of the nanowire diameter and…”
Get full text

Crossed zinc oxide nanorods for ultraviolet radiation detection by Chai, Guangyu, Lupan, Oleg, Chow, Lee, Heinrich, Helge

“…An ultraviolet photosensor has been successfully constructed by the in situ lift-out method in a focused ion beam system. The prototype consists of individual…”
Get full text

Single and networked CuO nanowires for highly sensitive p-type semiconductor gas sensor applications by Lupan, Oleg, Postica, Vasile, Cretu, Vasilii, Wolff, Niklas, Duppel, Viola, Kienle, Lorenz, Adelung, Rainer

“…Development of high‐performance p‐type semiconductor based gas sensors exhibiting fast‐response/recovery times with ultra‐high response are of major importance…”
Get full text

Low-Temperature Solution Synthesis of Au-Modified ZnO Nanowires for Highly Efficient Hydrogen Nanosensors by Lupan, Oleg, Postica, Vasile, Wolff, Niklas, Su, Jun, Labat, Frédéric, Ciofini, Ilaria, Cavers, Heather, Adelung, Rainer, Polonskyi, Oleksandr, Faupel, Franz, Kienle, Lorenz, Viana, Bruno, Pauporté, Thierry

“…In this research, the low-temperature single-step electrochemical deposition of arrayed ZnO nanowires (NWs) decorated by Au nanoparticles (NPs) with diameters…”
Get full text

Single CuO/Cu2O/Cu Microwire Covered by a Nanowire Network as a Gas Sensor for the Detection of Battery Hazards by Lupan, Oleg, Ababii, Nicolai, Mishra, Abhishek Kumar, Gronenberg, Ole, Vahl, Alexander, Schürmann, Ulrich, Duppel, Viola, Krüger, Helge, Chow, Lee, Kienle, Lorenz, Faupel, Franz, Adelung, Rainer, de Leeuw, Nora H, Hansen, Sandra

“…In this study, a strategy to prepare CuO/Cu2O/Cu microwires that are fully covered by a nanowire (NW) network using a simple thermal-oxidation process is…”
Get full text

Synthesis and Characterization of Ag- or Sb-Doped ZnO Nanorods by a Facile Hydrothermal Route by Lupan, Oleg, Chow, Lee, Ono, Luis K, Cuenya, Beatriz Roldan, Chai, Guangyu, Khallaf, Hani, Park, Sanghoon, Schulte, Alfons

“…ZnO nanorods doped with Ag and Sb have been synthesized by a facile hydrothermal technique. Crystal quality, morphology, chemical/electronic composition, local…”
Get full text

Concept and modelling of memsensors as two terminal devices with enhanced capabilities in neuromorphic engineering by Vahl, Alexander, Carstensen, Jürgen, Kaps, Sören, Lupan, Oleg, Strunskus, Thomas, Adelung, Rainer, Faupel, Franz

“…We report on memsensors, a class of two terminal devices that combines features of memristive and sensor devices. Apart from a pinched hysteresis (memristive…”
Get full text

Characterization of gallium-doped CdS thin films grown by chemical bath deposition by Khallaf, Hani, Chai, Guangyu, Lupan, Oleg, Chow, Lee, Park, S., Schulte, Alfons

“…Ga-doped CdS thin films, with different [Ga]/[Cd] ratios, were grown using chemical bath deposition. The effect of Ga-doping on optical properties and bandgap…”
Get full text

Hydrothermal treatment for the marked structural and optical quality improvement of ZnO nanowire arrays deposited on lightweight flexible substrates by Lupan, Oleg, Pauporté, Thierry

“…ZnO nanowire arrays (NWs) have attracted great interest as the building blocks for emerging applications in new flexible and elastic electronic and…”
Get full text

Nanostructured zinc oxide gas sensors by successive ionic layer adsorption and reaction method and rapid photothermal processing by Lupan, Oleg, Shishiyanu, Sergiu, Chow, Lee, Shishiyanu, Teodor

“…Undoped and Sn, Ni-doped nanostructured ZnO thin films were deposited on glass substrates using a successive ionic layer adsorption and reaction (SILAR) method…”
Get full text

Versatile Fabrication of Complex Shaped Metal Oxide Nano-Microstructures and Their Interconnected Networks for Multifunctional Applications by Mishra, Yogendra Kumar, Kaps, Sören, Schuchardt, Arnim, Paulowicz, Ingo, Jin, Xin, Gedamu, Dawit, Wille, Sebastian, Lupan, Oleg, Adelung, Rainer

“…Metal oxide nano-microstructures are applied in photocatalytic surfaces, sensors or biomedical engineering, proving the versatile utilization of…”
Get full text

Schottky Diode Based on a Single Carbon–Nanotube–ZnO Hybrid Tetrapod for Selective Sensing Applications by Postica, Vasile, Schütt, Fabian, Adelung, Rainer, Lupan, Oleg

“…In this work, a general strategy to change the selectivity of individual ZnO tetrapod (ZnO‐T)‐Schottky diode‐based devices by hybridization with carbon…”
Get full text

Nanomechanics of individual aerographite tetrapods by Meija, Raimonds, Signetti, Stefano, Schuchardt, Arnim, Meurisch, Kerstin, Smazna, Daria, Mecklenburg, Matthias, Schulte, Karl, Erts, Donats, Lupan, Oleg, Fiedler, Bodo, Mishra, Yogendra Kumar, Adelung, Rainer, Pugno, Nicola M.

“…Carbon-based three-dimensional aerographite networks, built from interconnected hollow tubular tetrapods of multilayer graphene, are ultra-lightweight…”
Get full text