Colecția instituțională: Recent submissions

  • Microtechnology with SILAR and RPP for semiconductor oxide gas sensors 
    SHISHIYANU, S. T.; SHISHIYANU, T. S.; LUPAN, O. I. (Institute of Electrical and Electronics Engineerings, IEEE, 2005)
    Microtechnology with Successive Ionic Layer Adsorption and Reaction (SILAR) technique and rapid photothermal processing (RPP) was elaborated and applied for semiconductor oxides gas sensors. The experimental results shown ...
  • Rapid Photothermal Processing for Silicon Solar Cells Fabrication 
    SHISHIYANU, S.; SINGH, R.; SHISHIYANU, T.; LUPAN, O.; RAILEAN, S.; SARGU, S. (Institute of Electrical and Electronics Engineerings, IEEE, 2006)
    In our report we demonstrated the advantage of the rapid photothermal processing (RPP) technology compare to conventional furnace technology for solar cells fabrication: short time, low thermal budget and low temperature ...
  • Doping Effects on Optical Properties of Low Temperature Grown ZnO Nanorod Arrays 
    LUPAN, O.; TIGINYANU, I.; URSAKI, V.; CHOW, L. (NSTI, 2010)
    In this work, we explore the influence of Ag dopant concentration on the structural and optical properties of ZnO nanorods synthesized by hydrothermal technique. We present original results of a systematic investigation ...
  • Study of vesicle size distribution dependence on pH value based on nanopore resistive pulse method 
    LIN, Yuqing; RUDZEVICH, Yauheni; WEARNE, Adam; LUMPKIN, Daniel; MORALES, Joselyn; NEMEC, Kathleen; TATULIAN, Suren; LUPAN, Oleg; CHOW, Lee (American Physical Society, 2013)
    Vesicles are low-micron to sub-micron spheres formed by a lipid bilayer shell and serve as potential vehicles for drug delivery. The size of vesicle is proposed to be one of the instrumental variables affecting delivery ...
  • Nanonetworks: Rapid Fabrication Technique for Interpenetrated ZnO Nanotetrapod Networks for Fast UV Sensors (Adv. Mater. 10/2014) 
    GEDAMU, Dawit; PAULOWICZ, Ingo; KAPS, Sören; LUPAN, Oleg; WILLE, Sebastian; HAIDARSCHIN, Galina; MISHRA, Yogendra Kumar; ADELUNG, Rainer (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2014)
    Flame transport synthesis (FTS) offers a unique fabrication technique for different nano-microtetrapods and their interconnected networks. Using the FTS method, interconnected ZnO nanotetrapod networks are fabricated ...
  • Effect of rapid thermal annealing on properties of ZnO:Ag nanostructures 
    POSTICA, Vasile; LUPAN, Oleg; ADELUNG, Rainer; PAUPORTÉ, Thierry (Society of Photo-Optical Instrumentation Engineers, SPIE, 2017)
    Previous reports clearly demonstrates that Ag-doping of ZnO lead to the diminution of the concentration of donor defects for the compensation of the n-type conductivity [1], while thermal annealing (TA) and rapid treatment ...
  • H2 gas sensing properties of a ZnO/CuO and ZnO/CuO/Cu2O Heterostructures 
    ABABII, N.; POSTICA, V.; HOPPE, M.; ADELUNG, R.; LUPAN, O.; RAILEAN, S.; PAUPORTÉ, T.; VIANA, B. (Society of Photo-Optical Instrumentation Engineers, SPIE, 2017)
    The most important parameters of gas sensors are sensitivity and especially high selectivity to specific chemical species. To improve these parameters we developed sensor structures based on layered semiconducting oxides, ...
  • Single nanowire nanosensors: Fabrication and detailed studies 
    LUPAN, O.; POSTICA, V.; LAZARI, E.; GRÖTTRUP, J.; KAIDAS, V.; ADELUNG, R. (IEEE, 2017)
    Individual metal oxide nanostructures are ideal building blocks for ultra-low-power and high performance sensing devices. Due to their multifunctionality, they are promising candidates for future optoelectronic and gas ...
  • Synthesis and optical properties of Ga2O3 nanowires grown on GaS substrate 
    LEONTIE, Liviu; SPRINCEAN, Veaceslav; UNTILA, Dumitru; SPALATU, Nicolae; CARAMAN, Iuliana; COJOCARU, Ala; ŞUŞU, Oana; LUPAN, Oleg; EVTODIEV, Igor; VATAVU, Elmira; TIGINYANU, Ion; CARLESCU, Aurelian; CARAMAN, Mihail (ELSEVIER, 2019)
    Gallium oxide (β-Ga2O3) nanowires were synthesized by heat treatment of single crystal β-GaS plates in air. Crystal structure and composition of synthesized materials were studied by X-ray diffraction, energy dispersive ...
  • ZnO nanowires grown by chemical deposition and rapid photothermal processing 
    SHISHIYANU, T.; LUPAN, O.; CHOW, L.; SHISHIYANU, S.; RAILEAN, S. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2008)
    Chemical deposition aqueous method has been developed to synthesize a new generation of smart and functional nanostructured zinc oxide thin films. This chemical process uses stable and inexpensive metal inorganic salts and ...
  • Nanofibrous zinc oxide films synthesized by magnetron sputtering 
    GHIMPU, L.; LUPAN, O.; POPESCU, S.; URSAKI, V.; TIGINYANU, I.; CHOW, L.; CHAI, G.; PARK, S.; SCHULTE, A. (IEEE, 2011)
    ZnO nanofibrous-based materials required for sensors and dye-solar cells have been grown on tin oxide/glass substrates by magnetron sputtering. Synthesis regimes have been identified that give nanoporous and nanofibrous ...
  • ZnO Hydrogen Nanoscale Sensors 
    LUPAN, Oleg; CHOW, Lee (Springer International Publishing Switzerland, 2013)
    Hydrogen has the potential to play an important role in energy and automobile industries in our society. Being an explosive gas, hydrogen is also a colorless and odorless gas; therefore, there is a great need to develop ...
  • Blue-red electroluminescence from hybrid Eu:phosphors/ZnO-nanowires/p-GaN LED 
    VIANA, B.; PAUPORTE, T.; LUPAN, O.; DEVIS, L.; GACOIN, T. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2014)
    Nanowire (NW) based light emitting diodes (LEDs) have drawn great research interest due to many advantages compared to thin film based devices. Marked improved performances are expected from nanostructured active layers ...
  • UV radiation and CH4 gas detection with a single ZnO:Pd nanowire 
    LUPAN, O.; ADELUNG, R.; POSTICA, V.; ABABII, N.; SHOW, L.; VIANA, B.; PAUPORTÉ, T. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2017)
    There is an increasing demand for sensors to monitor environmental levels of ultraviolet (UV) radiation and pollutant gases. In this work, an individual nanowire of Pd modified ZnO nanowire (ZnO:Pd NW) was integrated in a ...
  • Individual CdS-covered aerographite microtubes for room temperature VOC sensing with high selectivity 
    GHIMPU, Lidia; LUPAN, Oleg; POSTICA, Vasile; STROBEL, Julian; KIENLE, Lorenz; TERASA, Maik-Ivo; MINTKEN, Mona; TIGINYANU, Ion; MARX, Janik; FIEDLER, Bodo; ADELUNG, Rainer (ELSEVIER, 2019)
    The synthesis of new nanomaterials with a large surface-to-volume ratio is of high interest for sensing applications, and especially for gas sensors with high performances. In this work, a thin layer of CdS is deposited ...
  • Electrochemical synthesis and properties of ceria films grown on stainless steel 
    ŽIVKOVIC, Lj. S.; LAIR, V.; LUPAN, O.; RINGUEDE, A. (Springer Link, 2011)
    Electrochemical synthesis of ceria films was performed on a stainless steel substrate in view of Solid Oxide Fuel Cells (SOFC) applications. Films were obtained from aqueous nitrate solutions via cathodic deposition method ...
  • Toward blue emission in ZnO based LED 
    VIANA, Bruno; PAUPORTÉ, Thierry; LUPAN, Oleg; LE BAHERS, Tangui; CIOFINI, Ilaria (SPIE, 2013)
    The bandgap engineering of ZnO nanowires by doping is of great importance for tunable light emitting diode (LED) applications. We present a combined experimental and computational study of ZnO doping with Cd or Cu atoms ...
  • Electrodeposited ZnO nanowire-based light-emitting diodes with tunable emission from near-UV to blue 
    PAUPORTÉ, Thierry; LUPAN, Oleg; VIANA, Bruno (SPIE, Society of Photo-Optical Instrumentation Engineers, 2013)
    The bandgap control of doped-ZnO nanowires is important for tunable light emitting diodes (LEDs). Ultraviolet (UV), blue and violet LED structures based on Ag-doped ZnO /p-GaN and Cd-alloyed ZnO (Zn1-xCdxO) nanorods/p-GaN ...
  • Electrochemical and Hydrothermal Synthesis of Epitaxial Arrays of Doped Zn Nanowire Emitters for Light Emitting Diodes With Tunable Emission From Near-UV to Blue 
    PAUPORTE, T.; LUPAN, O.; VIANA, B. (The Electrochemical Society, 2013)
    The bandgap control of doped-ZnO nanowires is important for tunable light emitting diodes (LEDs). Ultraviolet (UV), violet, blue and near-white LED structures based on Cu- or Ag-doped ZnO /p-GaN and Cd-alloyed ZnO (Zn1-xCdxO) ...
  • Effect of Al Sn — Doping on properties of zinc oxide nanostructured films grown by magnetron sputtering 
    GHIMPU, Lidia; TIGINYANU, Ion; LUPAN, Oleg; MISHRA, Yogendra Kumar; PAULOWICZ, Ingo; GEDAMU, Dawit; COJOCARU, Ala; ADELUNG, Rainer (IEEE, 2013)
    Metal doping in nanostructured zinc oxide is important for device applications. To obtain improved performances for practical applications, Aluminum (Al) and Tin (Sn)-doping in zinc oxide nanostructured layers were ...

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