Browsing Articole ştiinţifice by Author "IOVU, M."

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  • Characterization of new nanocomposit PEPC / anthracenehalcon 
    BORDIAN, O.; VERLAN, V.; IOVU, M.; CULEAC, I.; NISTOR, I.; POPUŞOI, A.; DRAGALIN, G.; BARBĂ, N. (Institutul de Fizică Aplicată al AŞM, 2012)
    Nanocomposites PEPC / ANA-Halcon (chemical formula is shown below Figure 1) were investigated. Nanocomposite coatings were obtained by the chemical solution method. PEPC and ANAHalcon were separately dissolved in benzene ...
  • Characterization the nanocomposites of coordination compounds of Eu3+ ions/PEPC by TGA, DSC, TEM AND SEM 
    BORDIAN, O.; VERLAN, V.; CULEAC, I.; IOVU, M.; BRANCOVEANU, O.; BALAN, D.; BOJIN, D.; ZUBAREVA, V.; ENACHESCU, M. (Institutul de Fizică Aplicată al AŞM, 2016)
    Coordination compounds of Europium(III) are excellent materials for a new generation of light emitting devices with high efficiency, easy color tuning, temperature insensitivity, and high stability. Compounds Eu(TTA)3(Ph3PO)2, ...
  • Fiber Optic Interferometric Method for Registration of IR Radiation 
    CULEAC, Ion; NISTOR, I.; IOVU, M.; ANDRIESH, A. (Springer Nature Switzerland, 2012)
    A high sensitivity speckle based fi ber-optic method for registration of low intensity IR radiation is described. The method is based on the effect of variation of the speckle pattern in the far-fi eld of a multimode fi ...
  • Fluorescence properties of As2S3 glass doped with rare-earth elements 
    IOVU, M.; ANDRIESH, A.; CULEAC, I. (National Institute of Optoelectronics, Romania, 2005)
    Chalcogenide glasses doped with various rare-earth ions are extensively studied as potential materials for fiber optic amplifiers operating at 1.3 and 1.5 µm telecommunication windows. The experimental results on optical ...
  • Luminophore organic nanocomposites on the base of polymer and isothiocianatohalconic compounds 
    VERLAN, V.; ANDRIESH, A.; IOVU, M.; BORDIAN, O.; BUZURNIUC, S.; NISTOR, Yu.; CULEAC, I.; POPUŞOI, A.; DRAGALIN, G.; BARBĂ, N. (Institutul de Fizică Aplicată al AŞM, 2012)
    The paper presents the results of technology for obtaining nanocomposite thin layers (NC) of organic luminophore compounds (OLC), particularly, those prepared by the sol-gel method.
  • Nanostructured Polymer/CdS Photoluminescent Thin Films 
    IOVU, M.; TIGINYANU, I.; CULEAC, I.; ROBU, S.; NISTOR, Iu.; DRAGALINA, G.; ENACHI, M.; PETRENKO, P. (American Scientific Publishers, 2012)
    We present here experimental results on polymer-based nanocomposite material made of styrene with butyl methacrylate (SBMA) (1:1), isothiocyanato-chalcone (ITCC) and inorganic semiconductor CdS. The concentration of CdS ...
  • 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 activity induced by rare-earth ions in As2S3 glasses and KCl crystals 
    SYRBU, N.; ZALAMAI, V.; CULEAC, I.; IOVU, M.; TIRON, A. V.; BERIL, S. I.; STAMOV, I. G. (Elservier, 2019)
    Optical transmission spectra of As2S3 glass-like plates and nanolayers, undoped and doped with Sm and Pr ions have been investigated. The spectral dependences of the refractive index and glass transmission spectra, registered ...
  • 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. ...
  • PL properties of the coordination compound Eu(DBM)3(PH3PO)H2O 
    VERLAN, V.; BORDIAN, O.; CULEAC, I.; IOVU, M.; BULHAC, I.; ZUBAREV, V. (Institutul de Fizică Aplicată, 2012)
    The experimental results of PL and its kinetics were analyzed using the Judd-Ofelt method from which PL parameters were obtained: the quantum yield, life time, and the oscillator force of the electrical dipole, etc. The ...
  • Registration of low intensity IR radiation using modal interference in an optical fiber 
    CULEAC, I.; NISTOR, I.; IOVU, M.; ANDRIESH, A. (National Institute of Optoelectronics, Romania, 2009)
    A high sensitivity fiber-optic method for registration of low intensity IR radiation is proposed. The method is based on the effect of variation of the speckle pattern in the far-field of a multimode fiber. IR radiation ...
  • The study of some luminescent materials on the basis of organic copolymers grafted with isothiocyanatochalcones and phthalocyanine derivatives 
    ROBU, Şt.; DRAGALINA, G.; POPUŞOI, A.; MITCOV, D.; BARBĂ, N.; ANDRIEŞ, A.; CULEAC, I.; IOVU, M.; NISTOR, Iu. (Institutul de Fizică Aplicată al AŞM, 2010)
    Novel polymeric materials grafted with chalcone and phthalocyanine derivatives were synthesized and their luminescent properties were investigated.
  • Synthesis and optical characterization of the organic luminophore nanocomposite PEPC/Eu(o-MBA)3Phen 
    BORDIAN, O.; VERLAN, V.; CULEAC, I.; IOVU, M.; ZUBAREVA, V. (Institutul de Fizică Aplicată al AŞM, 2014)
    In the work was studied nanocomposite PEPC/Eu(o-MBA)3Phen, where PEPC – poly-N-epoxypropilcarbazol and o-MBA o– methylbenzoic acid, Phen – phenanthroline.
  • Technology and some optical proprieties of nanocomposites PEPC/CuPc 
    BORDIAN, O.; CULEAC, I.; IOVU, M.; VERLAN, V.; POPUSOI, A.; POPUSOI, M.; ROBU, St.; DRAGALINA, G.; SEPELI, D. (Institutul de Fizică Aplicată al AŞM, 2015)
    A new structural nanocomposite (NC) based on oligomer poly(N-epoxypropyl)carbazole (PEPC) and copper phthalocyanine (CuPc) nanocrystals on a glass substrate are prepared by casting and droplet methods under normal conditions ...

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