Number of the records: 1  

Raman studies and optical properties of lead-bismuth metaborate glasses

  1. 1.
    0324298 - ÚMCH 2009 RIV RO eng J - Journal Article
    Tichá, H. - Knoblochová, K. - Tichý, Ladislav
    Raman studies and optical properties of lead-bismuth metaborate glasses.
    [Ramanova studie a optické vlastnosti Pb-Bi metaborátových skel.]
    Journal of Optoelectronics and Advanced Materials. Roč. 10, č. 8 (2008), s. 2117-2122. ISSN 1454-4164. E-ISSN 1841-7132
    Institutional research plan: CEZ:AV0Z40500505
    Keywords : heavy metal oxide glasses
    Subject RIV: CA - Inorganic Chemistry
    Impact factor: 0.577, year: 2008

    Four (PbO)x(Bi2O3)0.5-x(B2O3)0.5 metaborate glasses, where x = 0.1, 0.2, 0.3 and 0.4 were prepared. Raman spectra indicated that substitution of PbO by Bi2O3 shifted the dynamical equilibrium between metaborate triangles and tetrahedra in direction of metaborate triangles formation. The optical gap (Eg) was found in the region 3.41 (x = 0.1) < Eg [eV] < 3.63 (x = 0.4) The non-linear refractive index (n2, [esu]) estimated from the optical gap values was found slightly increasing with Bi2O3 content from 5.35×10-11 to 5.91×10-11.

    Byla připravena čtyři (PbO)x(Bi2O3)0.5-x(B2O3)0.5 metaborátová skla, kde x = 0.1, 0.2, 0.3 a 0.4. Ramanova spektra indikují že substituce PbO za Bi2O3 posunuje dynamickou rovnováhu trojúhelníkových jednotek a tetraedrů ve směru tvorby trojúhelníkových útvarů. Optická šířka zakázaného pásu (Eg) byla určena v intervalu 3.41 (x = 0.1) < Eg [eV] < 3.63 (x = 0.4). Z Eg byly odhadnuty hodnoty nelineárního indexu lomu (n2, [esu]) v intervalu5.35×10-11 to 5.91×10-11.
    Permanent Link: http://hdl.handle.net/11104/0005192

     
     
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.