Browsing by Subject "gas sensors"

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  • 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 ...
  • Modificarea suprafeţei SnO2 şi In2O3 cu metale nobile şi sensibilitatea la gaze 
    BRÎNZARI, V.; BLAJE, V.; COROTCENCOV, G.; DAMASCHIN, I. (Editura U.T.M., 2009)
    Crearea structurilor nanodimensionale pe bază de SnO2 şi In2O3 poate fi considerată ca o metodă de modificare a suprafeţei. Calitatea acestor structuri (morfologia) este determinată de tehnologia de depunere a materialelor, ...
  • Multifunctional Materials: A Case Study of the Effects of Metal Doping on ZnO Tetrapods with Bismuth and Tin Oxides 
    POSTICA, Vasile; GRÖTTRUP, Jorit; ADELUNG, Rainer; LUPAN, Oleg; MISHRA, Abhishek Kumar; LEEUW, Nora H. de; ABABII, Nicolai; CARREIRA, José F. C.; RODRIGUES, Joana; SEDRINE, Nebiha Ben; CORREIA, Maria Rosário; MONTEIRO, Teresa; SONTEA, Victor; MISHRA, Yogendra Kumar (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2017)
    Hybrid metal oxide nano- and microstructures exhibit novel properties, which make them promising candidates for a wide range of applications, including gas sensing. In this work, the characteristics of the hybrid ZnOBi2O3 ...
  • Nanomateriale și heterojoncțiuni non-planare în bază de oxizi semiconductori 
    ABABII, Nicolai (Universitatea Tehnică a Moldovei, 2022)
    Scopul lucrării: constă în obținerea nanomaterialelor, heterojoncțiunilor și heterostructurilor non-planare în bază de oxizi semiconductori, CuO/Cu2O, TiO2/CuO/Cu2O, Fe2O3 - CuO/Cu2O, CuO-Cu2O/ZnO:Al și Al2O3/CuO, prin ...
  • Nanosensors based on individual hybrid structures and their application in gas sensing at room temperature 
    POSTICA, Vasile; RASCH, Florian; SCHÜTT, Fabian; ADELUNG, Rainer; LUPAN, Oleg (Tehnica UTM, 2020)
    Because the commercialization of nanosensors in the field of gas sensing is still in its infancy, many efforts have been made to develop efficient methods to increase their performances. A special attention was paid to the ...
  • Nanostructurarea, doparea şi funcţionalizarea oxidului de zinc pentru dispozitive senzorice 
    POSTICA, Vasile (Universitatea Tehnică a Moldovei, 2016)
    Scopul lucrării constă in nanostructurarea, doparea și funcționalizarea nanostructurilor de oxid de zinc pentru elaborarea structurilor de senzori eficienți pentru aplicații multifuncționale (detectarea gazelor nocive/explozibile ...
  • Nanostructuri senzoriale pentru gaze nocive cu sensibilitatea mărită la expunerea la radiaţii cosmice gamma 
    LUPAN, Cristian; BÎRNAZ, Adrian; BUZDUGAN, Artur; SANDBERG, Viviana; BÂRSA, Tudor; LUPAN, Oleg (Agenţia de Stat pentru Proprietatea Intelectuală a Republicii Moldova (AGEPI), 2023)
    Invenţia se referă la tehnica de măsurători, în special la procedee de îmbunătăţire a detecţiei la temperaturi mai joase a prezenţei în mediu a n-Butanolului și Hidrogenului, precum și îmbunăţirii sensibilităţii lor la ...
  • The nature of processes controlling the kinetics of indium oxide-based thin film gas sensor response 
    KOROTCENKOV, Ghenadii; BRINZARI, Vladimir; STETTER, Joseph R.; BLINOV, Iuri; BLAJA, Valeriu (Elsevier, 2007)
    This paper analyzes the processes controlling the rate of conductivity response of In2O3-based thin film sensors to both reducing and oxidizing gases. In2O3 films with a thickness from 20 to 400nm were deposited using a ...
  • A New Approach in Detection of Biomarker 2-propanol with PTFE-Coated TiO2 Nanostructured Films 
    SCHRÖDER, Stefan; BRINZA, Mihai; CRETU, Vasile; ZIMOCH, Lukas; GRONENBERG, Monja; ABABII, Nicolai; RAILEAN, Serghei; STRUNSKUS, Thomas; PAUPORTE, Thierry; ADELUNG, Rainer; FAUPEL, Franz; LUPAN, Oleg (Springer Nature Switzerland, 2023)
    Certain molecules act as biomarkers in exhaled breath or outgassing vapors of biological systems. Metal oxide gas sensors are of great interest to detect these molecules. However, often they are not selective enough to ...
  • New vapor deposited dielectric polymer thin films for electronic applications 
    SCHRÖDER, Stefan; MAGARIU, Nicolae; STRUNSKUS, Thomas; ABABII, Nicolai; LUPAN, Oleg; FAUPEL, Franz (Technical University of Moldova, 2022)
    Dielectric materials are of great interest in a vast amount of applications ranging from cable insulation to advanced electronic devices. The emerging trend of device miniaturization is creating an increased demand for ...
  • Non-planar nanoscale p–p heterojunctions formation in ZnxCu1−xOy nanocrystals by mixed phases for enhanced sensors 
    LUPAN, Oleg; CRETU, Vasilii; POSTICA, Vasile; POLONSKYI, Oleksandr; ABABII, Nicolai; SCHÜTT, Fabian; KAIDAS, Victor; FAUPEL, Franz; ADELUNG, Rainer (ELSEVIER, 2016)
    The copper oxides are advanced materials due to their remarkable sensing, optical, electrical, thermal and magnetic performances. Nanostructuring and doping of copper oxides enhance further the possible features of these ...
  • Novel hydrogen gas sensor based on single ZnO nanorod 
    LUPAN, Oleg; CHAI, Guangyu; CHOW, Lee (ELSEVIER, 2008)
    For extensive use in an industrialized process of individual ZnO nano/microrods as building nanoblock in novel hydrogen sensors, a simple, inexpensive, and bio-safe synthesis process and nanofabrication route is required. ...
  • Optical and sensory properties of ZnO nanofibrous layers grown by magnetron sputtering 
    GHIMPU, L.; TIGINYANU, I. M.; URSAKI, V.; LUPAN, O.; CHOW, L.; RUDZEVICH, Y.; LIN, Y. (Institute of Electrical and Electronics Engineerings, IEEE, 2012)
    This paper presents optical and sensory properties of ZnO nanofirous layers grown by a cost-effective and fast fabrication method based on magnetron sputtering. The as-prepared nanofibrous layers show good conductive ...
  • Optimization of thin-film gas sensors for environmental monitoring through theoretical modeling 
    BRYNZARI, Vladimir I.; KOROTCHENKOV, Ghennadii S.; SCHWANK, Johannes W. (SPIE, 1999)
    The task of optimization of gas sensor characteristics such as absolute value and temperature range of sensitivity, time response and selectivity is one of the most important problems of gas sensor design. Unfortunately, ...
  • Optoelectronic gas sensor 
    DOROGAN, Valerian; VIERU, Tatiana; VIERU, Stanislav; DOROGAN, Andrei; SECRIERU, Vitalie; MUNTEANU, Eugen; BALICA, Ştefan (Romanian Inventors Forum, 2012)
    The sensor is equipped with a laser diode with vertical emission and an external optical resonator, which assures multiple propagation of laser radiation. The gash detection inside the external resonator’s cavity is assured ...
  • Oxide planar p–n heterojunction prepared by low temperature solution growth for UV-photodetector applications 
    LUPAN, O.; KOUSSI-DAOUD, S.; VIANA, B.; PAUPORTÉ, T. (The Royal Society of Chemistry, 2016)
    The paper presents the low temperature growth of a planar p-NiO/n-ZnO/FTO heterostructure for efficient detection of soft UV light. n-ZnO was prepared at 60°C using an aqueous bath of zinc nitrate precursor. The 2D layer ...
  • Pd-doped ZnO nanostructured films for multifunctional applications 
    POSTICA, Vasile; HOPPE, Mathias; ADELUNG, Rainer; PAUPORTÉ, Thierry; ABABII, Nicolai; TROFIM, Viorel; SONTEA, Victor; LUPAN, Oleg (Technical University of Moldova, 2017)
    In this work Pd-doped ZnO (ZnO:Pd) nanostructured films were deposited on pre-cleaned glass substrates via a synthesis from chemical solutions (SCS) approach from aqueous baths. The post-rowth thermal annealing, namely ...
  • Pd-Functionalized ZnO:Eu Columnar Films for Room-Temperature Hydrogen Gas Sensing: A Combined Experimental and Computational Approach 
    LUPAN, Cristian; KHALEDIALIDUSTI, Rasoul; MISHRA, Abhishek Kumar; POSTICA, Vasile; TERASA, Maik-Ivo; MAGARIU, Nicolae; PAUPORTÉ, Thierry; VIANA, Bruno; DREWES, Jonas; VAHL, Alexander; FAUPEL, Franz; ADELUNG, Rainer (American Chemical Society, 2020)
    Reducing the operating temperature to room temperature is a serious obstacle on long-life sensitivity with long-term stability performances of gas sensors based on semiconducting oxides, and this should be overcome by new ...
  • Porous materials for electrical gas sensors and actuators without moveable part 
    ADELUNG, Rainer (Technical University of Moldova, 2022)
    This talk briefly summarizes the work of our group over the last decade, showing how highly porous materials can be used as both electrical sensors and electrical actuators without the need for moving parts. This is because ...
  • Procedeu de funcţionalizare a nanofirelor de ZnO cu nanoparticule de Pd 
    POSTICA, Vasile; PAUPORTÈ, Thierry; TROFIM, Viorel; ABABII, Nicolai; LUPAN, Oleg (Agenţia de Stat pentru Proprietatea Intelectuală a Republicii Moldova, 2020-11-30)
    Invenţia se referă la tehnologia semiconductorilor oxizi, în special la tehnologia de obţinere a nanofirelor de ZnO funcţionalizate cu nanoparticule de paladiu (Pd) şi poate fi utilizată la fabricarea senzorilor de gaze ...

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