A novel blue-emitting phosphor: BaAl(2)B(2)O(7): Pb(2+)

Date

2008-09-01

Author

Pekgozlu, I.
Seyyidoglu, S.
TAŞCIOĞLU, SÜLİN

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

115
views

0
downloads

Pb(2+) doped BaAl(2)B(2)O(7) materials were prepared by a solution combustion synthesis. The phase of the synthesized materials was determined using the powder X-ray diffraction. The photoluminescent properties of Pb(2+) doped BaAl(2)B(2)O(7) materials were investigated using spectrofluorometer at room temperature. The emission and excitation bands of BaAl(2)B(2)O(7): Pb(2+) were observed at 423 and 266 nm, respectively. The dependence of the emission intensity on the Pb(2+) concentration for BaAl(2)B(2)O(7): Pb(2+) was investigated. The Stokes shifts of BaAl(2)B(2)O(7): Pb(2+) was calculated to be 13 953 cm(-1)

Subject Keywords

Biophysics, Atomic and Molecular Physics, and Optics, Biochemistry, General Chemistry, Condensed Matter Physics

URI

https://hdl.handle.net/11511/67014

Journal

JOURNAL OF LUMINESCENCE

DOI

https://doi.org/10.1016/j.jlumin.2008.02.015

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

TL and OSL studies on gallium sulfide (GaS) single crystals Isik, M.; YÜKSEL, MEHMET; TOPAKSU, MUSTAFA; Hasanlı, Nızamı (Elsevier BV, 2020-09-01) Gallium sulfide (GaS) single crystals were investigated using thermoluminescence (TL) and optically stimulated luminescence (OSL) measurements. TL experiments performed in the room temperature (RT)-450 °C range presented a glow curve consisting in six single discrete peaks. Analyses of TL glow curve by computerized glow curve deconvolution method showed that the trapping centers responsible for peaks are located at 0.98, 1.09, 1.15, 1.76, 1.87 and 1.90 eV. The order of kinetics found between 1 and 2 indicat...
A theoretical study of chemical doping and width effect on zigzag graphene nanoribbons Pekoz, Rengin; Erkoç, Şakir (Elsevier BV, 2009-12-01) The energetics and the electronic properties of nitrogen- and boron-doped graphene nanoribbons with zigzag edges have been investigated using density functional theory calculations. For the optimized geometry configurations, vibrational frequency analysis and wavefunction stability tests have been carried out. Different doping site optimizations for a model nanoribbon have been performed and formation energy values of these sites revealed that zigzag edgesite for both of the dopants were the most favorable ...
A new p- and n-dopable selenophene derivative and its electrochromic properties Cetin, Guelben Ardahan; Balan, Abidin; Durmus, Asuman; Günbaş, Emrullah Görkem; Toppare, Levent Kamil (Elsevier BV, 2009-02-01) A novel electrically conducting polymer, poly(2-dodecyl-4,7-di(selenophen-2-yl)benzotriazole) (PSBT), containing selenophene as the strong donor and benzotriazole as the strong acceptor groups was synthesized by electrochemical polymerization. Homopolymerization and copolymerization (in the presence of 3,4-ethylenedioxythiophene (EDOT)) were achieved in acetonitrile/dichloromethane(95/5 v/v) with 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)). The electrochemical and optical properties of homopolym...
Does tubular structure of carbon form only from graphine sheet? Erkoç, Şakir (Elsevier BV, 2004-10-01) The structural and electronic properties of carbon nanotubes constructed from non-graphine sheet have been investigated qualitatively by performing semi-empirical self-consistent-field molecular orbital calculations at the level of AMI method within the RHF formulation. It has been found that these structures are stable and endothermic. From the point of view of electronic properties these structures seem to be nonconductive; their frontier molecular orbital energy differences are large, in the order of 10e...
Multiphoton core ionization dynamics of polyatomic molecules Toffolı, Danıele; Decleva, Piero (IOP Publishing, 2013-07-28) The two-photon core ionization dynamics of gas-phase methane, carbon monoxide and nitrogen have been studied with a recent implementation of the lowest order perturbation theory in the framework of density functional theory and a multicentric basis set expansion of bound and scattering states. Ionization cross sections and angular asymmetry parameters have been calculated for the case of a single radiation beam and for both linear and circular light polarizations in the fixed nuclei approximation. Expected ...

Citation Formats

I. Pekgozlu, S. Seyyidoglu, and S. TAŞCIOĞLU, “A novel blue-emitting phosphor: BaAl(2)B(2)O(7): Pb(2+),” JOURNAL OF LUMINESCENCE, pp. 1541–1543, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67014.