Colecția instituțională: Recent submissions

  • Temperature dependence of photoinduced absorption in As2S3 glass fibers 
    CULEAC, I. P.; NISTOR, Iu. H. (Institutul de Fizică Aplicată al AŞM, 2015)
    We have investigated the photoinduced absorption in As2S3 glass fibers under continuos illumination of the lateral surface of the fibers with band-gap light. PA measurements have been carried out on unclad fibre samples ...
  • 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 ...
  • Technology and optical characterization of luminophore coordination compounds Eu(o-MBA)3Phen and NC PEPC/Eu(o-MBA)3Phen 
    BORDIAN, Olga; VERLAN, Victor; CULEAC, Ion; IOVU, Mihail; BULHAC, Ion; ZUBAREVA, Vera (SPIE, Society of Photo-Optical Instrumentation Engineers, 2016)
    Were obtained a new nanocomposite (NC) based on poly N-epoxy prolyl carbazol (PEPC) and the coordination compound luminophore Eu(o-MBA)3Phen, where o-MBA is o- methylbenzoic acid and Phen – phenanthroline. Nanocrystals of ...
  • Synthesis, Absorption and Photoluminescence Properties of the New Coordination Compound Eu(DBM)3(Ph3PO)1H2O 
    BORDIAN, Olga; VERLAN, Victor; CULEAC, Ion; IOVU, Mihail; BULHAC, Ion; ZUBAREV, Vera (SPIE, 2018)
    A new coordinate organic compound (COC) Eu(DBM)3(Ph3PO)1H2O was synthesized and investigated (DBM stands for 1,3-Diphenyl-1,3-propanedione and Ph3PO for triphenylphosphine oxide). The size of obtained Eu(DBM)3(Ph3PO)1H2O ...
  • 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.
  • Synthesis and optical characterization of Eu(TTA)3(Ph3PO)2 
    BORDIAN, O. T.; VERLAN, V. I.; IOVU, M. S.; CULEAC, I. P.; ZUBAREV, V. E.; BOJIN, D. E.; ENACHESCU, M. (Institutul de Fizică Aplicată al AŞM, 2015)
    Coordination compound tris(thenoyltrifluoroacetonato)bis(triphenylphosphine oxide) europium(III) Eu(TTA)3(Ph3PO)2, where TTA is the thenoyltrifluoroacetonate monoanion (C8H5F3O2S), Ph3PO is triphenylphosphinoxide (TPPO), ...
  • Structure and Bonding in As−Sb−S Chalcogenide Glasses by Infrared Reflectance Spectroscopy 
    KAMITSOS, E. I.; KAPOUTSIS, J. A.; CULEAC, I. P.; IOVU, M. S. (American Chemical Society, 1997)
    The structure of chalcogenide glasses xSb2S3•(1 − x)As2S3 with 0 ≤ x ≤ 0.75 was studied by infrared reflectance spectroscopy.
  • Speckle-based fiber optic method for registration of IR radiation 
    CULEAC, I. P.; NISTOR, Iu. H.; IOVU, M. S.; ANDRIESH, A. M. (SPIE, 2010)
    A high sensitivity speckle based 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. ...
  • Sinteza şi studiul unor polimeri carbazolici fotoluminescenţi grefaţi cu coloranţi metaloftalocianinici 
    ROBU, Ştefan; POPUŞOI, Ana; DRAGALINA, Galina; Ion CULEAC, Ion CULEAC; POPUŞOI, Mihail (Universitatea de Stat din Moldova, 2013)
    În scopul elaborării materialelor polimerice fotoluminescente, au fost proiectate structuri polimerice, care să conțină grupări responsabile de anumite proprietăți (fotoconductivitate, fotoluminescență, adeziune față de ...
  • 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 ...
  • Raman Spectra in As-Based Chalcogenide Optical Fibers 
    IOVU, M. S.; CULEAC, I. P.; KOUDELKA, Ladislav; VOYNAROVYCH, Ivan; VLCEK, Miroslav (American Scientific Publishers, 2014)
    Raman spectra for optical fiber samples prepared from As-based chalcogenide glass composition (As50S50, As40S60, As25S75, (As40S60)0.95:(As40Se60)0.05 and (As40S60)0.95:(Sb40S60)0.05 are investigated. The primary maximum ...
  • Preparation and photoelectric characterization of SWCNTs-P3OT nanocomposites 
    VERLAN, Victor; BORDIAN, Olga; CULEAC, Ion; IOVU, Mihail; BOERASU, Iulian; ENACHESCU, Marius (Institutul de Fizică Aplicată, 2015)
    This work presents experimental results on single-walled carbon nanotubes (SWCNTs) and nanocomposite materials based on SWCNTs and conducting polymer with conjugated bonds poly-3 oxythiofene (P3OT).
  • Preparation and Characterization of CdSe Colloidal Quantum Dots by Optical Spectroscopy and 2D DOSY NMR 
    GERU, I.; BORDIAN, O.; CULEAC, I.; TURTA, C.; VERLAN, V.; BARBA, A. (SPIE, 2015)
    We present experimental results on preparation and characterization of colloidal CdSe quantum dots (QD) in organic solvent. CdSe QDs were synthesized following a modified literature method and have been characterized by ...
  • 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 ...
  • 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 ...
  • 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 – ...
  • 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. ...
  • 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 ...
  • 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 ...
  • 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 ...

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