Browsing by Subject "nanocomposites"

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  • Nanowires of Silicon Carbide and 3D SiC/C Nanocomposites With Inverse Opal Structure 
    EMELCHENKO, G. A.; ZHOKHOV, A. A.; MASALOV, V. M.; KUDRENKO, E. A.; TERESHENKO, A. N.; STEINMAN, E. A.; KHODOS, I. I.; ZINENKO, V. I.; AGAFONOV, Yu. A. (Technical University of Moldova, 2011)
    Synthesis, morphology, structural and optical characteristics of SiC NWs and SiC/C nanocomposites with an inverse opal lattice have been investigated. The samples were prepared by carbothermal reduction of silica (SiC NWs) ...
  • New composite materials for optoelectronic applications 
    IOVU, M. S.; BUZURNIUC, S. A.; VERLAN, V. I.; CULEAC, I. P.; NISTOR, Yu. H. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2009)
    The problem of obtaining low cost but efficient luminescent materials is still actually. Data concerning fabrication and luminescent properties of new composite materials on the base of thenoyltrifluoroacetone (TTA) of ...
  • New organic luminophore compounds-polymer nanocomposites: technology and absorbance 
    VERLAN, V.; IOVU, M.; CULEAC, I.; POPUSHOI, A.; DRAGALINA, G.; ROBU, S.; BARBĂ, N.; MALAHOV, L. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2010)
    New light-emitting layers of nanocomposites on polymer base have been obtained. As polymeric matrices the copolymers of styrene and butilmetacrylate in the ratio (1:1) have been used. As organic luminophore compounds from ...
  • Optical absorption and photoluminescence of lumonophore nanocomposites 
    VERLAN, V. I.; IOVU, M. S.; ANDRIESH, A. M.; NISTOR, Yu. H.; CULEAC, I.; MALAHOV, L.; TURTA, C. I.; ZUBAREVA, V. E. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2011)
    The europium complex tris(dibenzoylmethane)(monophenanthroline)europium (III) (Eu(DBM)3Phen) was successfully incorporated with different molar ratios into organic copolymer matrix of styrene:butylmethacrilate (1:1) (SBMA) ...
  • Optical and photoluminescence characteristics of amorphous nanocomposites containing organic compounds with Eu+3 and polymers 
    VERLAN, V. I.; IOVU, M. S.; CULEAC, I.; NISTOR, YU. H.; TURTA, C. I.; ZUBAREVA, V. E. (National Institute of Optoelectronics, Romania, 2011)
    Thin films (1-10 µm thickness) of nanocomposites (NC) based on polymers and organic coordinated compounds (OCC) Eu(TTA)3H2O, Eu(TTA)3Phen, Eu(DBM)3Phen, Eu(TTA)2(Ph3PO)2NO3 (where TTA is thenoyltrifluoroacetonate (C8H5F3O2S), ...
  • Optical and Photoluminescence Properties of Nanocomposites Polymer-Compounds Coordinated with Eu+3 Ions 
    VERLAN, V. I.; IOVU, M. S.; CULEAC, I. P.; TURTA, C. I.; ZUBAREVA, V. E. (American Scientific Publishers, 2012)
    Thin films (1–3 μm thickness) of nanocomposites (NCs) based on organic compounds with Eu3+ ions (Eu(TTA)3H2O, Eu(TTA)3 Phen, Eu(DBM)3 Phen and Eu(TTA)2(Ph3PO)2NO3 and polymer polyvinylpyrrolidone (PVP) or copolymer ...
  • Optical characterization of the new nanocomposite SBMA/Eu(TTA)3(Ph3PO)2 
    BORDIAN, Olga; VERLAN, Victor; CULEAC, Ion; IOVU, Mihail; ZUBAREVA, Vera; NISTOR, Iurie (SPIE, Society of Photo-Optical Instrumentation Engineers, 2015)
    We describe a new nanocomposite material based on the copolymer of styrene with butyl methacrylate (1:1) (SBMA), and coordinating compound of Europium(III) Eu(TTA)3(Ph3PO)2. The SBMA/Eu(TTA)3(Ph3PO)2 nanocomposite was ...
  • Optical Properties and Photoinduced Anisotropy of PEPC-co-SY3 Nanocomposite 
    LOŞMANSCHII, Constantin; ACHIMOVA, Elena; ABASKIN, Vladimir; MESALCHIN, Alexei; PRISACAR, Alexandr; BOTNARI, Vladislav (Springer Nature Switzerland, 2023)
    In the present work, the optical properties of the PEPC-co-SY3 nanocomposite doped with gold nanoparticles are brought to light. The samples were prepared with 3 different concentrations of Au as well as a control sample ...
  • Photoluminescence properties of PVP/Eu(TTA)2(Phen3PO)2NO3 nanocomposites 
    VERLAN, V. I.; IOVU, M. S.; CULEAC, I.; NISTOR, Y.; TURTA, C. I.; ZUBAREVA, V. E. (Elsevier, 2011)
    Thin films (1–10μm thickness) of nanocomposites (NC) based on organic coordinated compound (OCC) Eu(TTA)2(Phen3PO)2NO3 (where TTA is thenoyltrifluoroacetonate (C8H5F3O2S), Phen – 1,10-phenanthroline (C12H8N2)) and polymer ...
  • Photoluminescent nanocomposite materials based on SBMA copolymer and CdS 
    IOVU, M.; ENACHESCU, M.; CULEAC, I.; VERLAN, V.; ROBU, S.; BOJIN, D.; NISTOR, Iu.; COJOCARU, I. (SPIE, 2015)
    We present experimental results on copolymer-based nanocomposite made of styrene with butyl methacrylate (SBMA) (1:1) and inorganic semiconductor CdS. Thin film composite samples have been characterized by UV-Vis absorption ...
  • Photoluminescente properties of Eu(o-MBA)3Phen organic compound embedded in PEPC polymer matrix 
    BORDIAN, O.; VERLAN, V.; CULEAC, I.; IOVU, M.; ZUBAREVA, V. (National Institute of Optoelectronics, Romania, 2017)
    We report preparation and characterization of new nanocomposite material based on oligomers poly-N-propyl carbazole (PEPC) and the organic compound Eu(o-MBA)3Phen, where o-MBA – ortho-methylbenzoic acid, Phen – phenanthroline. ...
  • Photouminescence and Optical Properties of PVP/Tb(TTA)2(Ph3PO)2NO3 Nanocomposites 
    VERLAN, V. I.; IOVU, M. S.; CULEAC, I.; NISTOR, Y. H.; TURTA, C. I.; ZUBAREVA, V. E. (SPIE, 2012)
    Thin films (1-10 μm thickness) of nanocomposites (NCs) based on coordinated compounds (CC) Tb(TTA)2(Ph3PO)2NO3 (where TTA is thenoyltrifluoroacetonate (C8H5F3O2S), Ph3PO - triphenylphosphine oxide) and polymer – ...
  • Polymer nanocomposite based on styrene with butyl methacrylate and inorganic semiconductor CdsS 
    IOVU, Mihail; ENACHESCU, Mihai; CULEAC, Ion; VERLAN, Victor; ROBU, Stefan; BOJIN, Dionezie; NISTOR, Iurie; COJOCARU, Ion (Institutul de Chimie, AŞ, 2014)
    We present experimental results on copolymer-based nanocomposite made of styrene with butyl methacrylate (1:1) and inorganic semiconductor CdS. Thin fi lm composite samples have been characterized by UVVis absorption and ...
  • The potential of magnetite-based nanocomposites in nanophytoremediation of soils polluted by polyethylene 
    TODIRAS, V.; PRISACARI, S.; CORCIMARU, S.; GUTUL, T. (Institute of Microbiology and Biotechnology, Republic of Moldova, 2022)
    Due to the lack of efficient chemical and physical methods for destroying plastics in soil, the attention has recently been directed towards developing biological degradation techniques, including the ones based on application ...
  • Preparation and optical characterization of the new polymer nanocomposites 
    ANDRIESH, A.; BIVOL, V.; BUZURNIUC, S.; MESHALCHIN, A.; ROBU, S.; VERLAN, V. (Technical University of Moldova, 2005)
    The polymer nanocomposites consisting of polyvinylalcohol (PVA) and chalcogenide non-crystalline semiconductors (ChNS) as arsenic selenide (As2Se3) and arsenic sulfide (As2S3) were obtained. The optical absorption was ...
  • Preparation of poly(N-vinylpyrrolidone)-stabilized ZnO colloid nanoparticles 
    GUTUL, Tatyana; RUSU, Emil; CONDUR, Nadejda; URSAKI, Veaceslav; GONCEARENCO, Evgenii; VLAZAN, Paulina (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2014)
    We propose a method for the synthesis of a colloidal ZnO solution with poly(N-vinylpyrrolidone) (PVP) as stabilizer. Stable colloidal solutions with good luminescence properties are obtained by using PVP as stabilizer in ...
  • Red and green nanocomposite phosphors prepared from porous GaAs templates 
    SYRBU, Lilian; URSAKI, V. V.; TIGINYANU, I. M.; DOLGALEVA, Ksenia; BOYD, Robert W. (IOP Publishing, 2007)
    Rare-earth-containing oxide nanocomposites are prepared in a controlled fashion from porous GaAs templates. The initial porous GaAs network is replaced by a β-Ga2O3 one during annealing at temperatures from 500 to 900 °C. ...
  • Silanized Citric Acid Capped Magnetic Nanoparticles and Influence on Chlorophyll 
    POPESCU, L.; SACARESCU, L.; GRIGORAS, M.; MOROSANU, C.; CREANGA, D.; DOROHOI, D.; STAN, C. (Tehnica UTM, 2019)
    Two step synthesis of cobalt ferrite nanoparticles capped with citric acid and coated with silica was carried out. Citric acid coated magnetic grains were synthesized by chemical co-precipitation starting from iron and ...
  • Structuri clay-polymer nanocomposite pentru ambalaje alimentare 
    SIMINEL, Nikita (Universitatea Tehnică a Moldovei, 2023)
    Scopul lucrării a constat în dezvoltarea de noi biopolimeri pe bază de argile Na+- și Ca2+-montmorillonit, polietilenglicol și amiloză; elucidarea funcțiilor argilei, plastifiantului, amidonului și apei în formarea straturilor ...
  • Studiul proprietăților electroconductive ale filmelor de Te nanocristalin sau amorf la interacțiunea cu gazele toxice 
    MOCREAC, Olga (Universitatea Tehnică a Moldovei, 2023)
    Scopul lucrării: cercetarea conductivității electrice a filmelor subțiri de telur la curent continuu şi alternativ în condițiile interacțiunii lor cu gazele toxice, evidențierea legităților şi mecanismului acestei interacțiuni, ...

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