TITLE

Time-resolved photoluminescence analysis of two-peak emission behavior in Sr2Si5N8:Eu2+

AUTHOR(S)
Kee-Sun Sohn; Sangjun Lee; Rong-Jun Xie; Hirosaki, Naoto
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p121903
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Sr2Si5N8:Eu2+, one of the most recently developed phosphors for use in white light emitting diodes, exhibits a two-peak emission. Namely, the emission band of Sr2Si5N8:Eu2+ is deconvoluted into two Gaussian peaks irrespective of the Eu2+ concentration. We examined the two-peak emission of Sr2Si5N8:Eu2+ by analyzing the time-resolved photoluminescence spectra. We revealed that the two-peak emission was closely associated with the energy transfer taking place between Eu2+ activators located at two different crystallographic sites in the Sr2Si5N8 structure. The experimental results coincided well with the rate equation model involving the crystallographic information of the host.
ACCESSION #
44374799

 

Related Articles

  • Energy transfer between Ce3+ and Eu2+ in doped KSrPO4. Yizhu Lei; Qi Zou; Dehai Du // Applied Physics A: Materials Science & Processing;Nov2009, Vol. 97 Issue 3, p635 

    Powder samples of KSrPO4 doped with Eu2+ and Ce3+ were prepared by combustion-assisted synthesis. Their structures and photoluminescence spectra were systemically studied. Energy transfer from Ce3+ to Eu2+ was observed by investigating the optical properties from photoluminescence spectra in...

  • Photoluminescence of nitro-substituted europium (III) phthalocyanines. Ziminov, A. V.; Polevaya, Yu. A.; Jourre, T. A.; Ramsh, S. M.; Mezdrogina, M. M.; Poletaev, N. K. // Semiconductors;Aug2010, Vol. 44 Issue 8, p1070 

    Europium monophthalocyanine Eu(acac)Pc, europium monotetranitrophthalocyanine Eu(acac)Pc(NO), and heteroleptic europium tetranitrobisphthalocyanine Eu(Pc)(Pc(NO)) are synthesized. The spectral characteristics of the phthalocyanine complexes in the visible and near-infrared regions are studied....

  • Photoluminescence spectra and lifetimes of $${{}^4\hbox{I}_{{13}/2} \rightarrow {}^4\hbox{I}_{{15}/2} }$$ and $${{}^4\hbox{I}_{{11}/2} \rightarrow {}^4\hbox{I}_{{15}/2} }$$ transitions in erbium doped GeGaSe and GeGaS glasses. Koughia, K.; Munzar, M.; Aoki, T.; Kasap, S. O // Journal of Materials Science: Materials in Electronics;Oct2007 Supplement, Vol. 18, p153 

    The steady-state and transient photoluminescence has been investigated in Ge-Ga-Se and Ge-Ga-S chalcogenide glasses with stoichiometric composition and heavily doped with Er. These glasses show the expected characteristics of $${\hbox{Er}^{3+}}$$ ion absorption/emission bands. The Judd-Ofelt...

  • Unraveling the Mysteries of Carbon Nanotubes Using a State-of-the-Art Spectral Imaging NIR Photoluminescence System.  // Spectroscopy;Sep2006 Supplement, Vol. 21, p24 

    The article offers information about the study done to determine the effectivity of near infrared (NIR) photoluminescence system on the analysis of the properties of single-walled carbon nanotubes (SWNT). The discovery of NIR band gap photoluminescence from isolated semiconducting SWNT has...

  • Control of conduction type in Al- and N-codoped ZnO thin films. Yuan, G. D.; Ye, Z. Z.; Zhu, L. P.; Qian, Q.; Zhao, B. H.; Fan, R. X.; Perkins, Craig L.; Zhang, S. B. // Applied Physics Letters;5/16/2005, Vol. 86 Issue 20, p202106 

    p-type ZnO thin films have been fabricated by an Al- and N-codoping technique at the growth temperature between 380 and 480 °C, as identified by the Hall measurement. At lower and higher temperatures, however, the samples are n type. The best p-type sample shows a resistivity and hole...

  • Upconversion luminescence from CdSe nanoparticles. Chen, Wei; Joly, Alan G.; McCready, David E. // Journal of Chemical Physics;6/8/2005, Vol. 122 Issue 22, p224708 

    Efficient upconversion luminescence has been observed from CdSe nanoparticles ranging in size from 2.5 to 6 nm. The upconversion luminescence exhibits a near-quadratic laser power dependence. Emissions from both excitons and trap states are observed in the upconversion and photoluminescence...

  • Time-resolved photoluminescence study of the stimulated emission in ZnO nanoneedles. Kwok, W. M.; Djurišić, A. B.; Leung, Y. H.; Chan, W. K.; Phillips, D. L. // Applied Physics Letters;8/29/2005, Vol. 87 Issue 9, p093108 

    ZnO nanoneedles were fabricated by thermal evaporation of Zn nanoparticles at 800 °C and atmospheric pressure. The samples showed strong ultraviolet photoluminescence and weak orange defect luminescence. Time-resolved photoluminescence (TRPL) was measured using the Kerr-gated fluorescence...

  • Photoluminescence properties of blue-emitting Li4SrCa(SiO4)2:Eu2+ phosphor for solid-state lighting. Zhang, X. M.; Li, W. L.; Shi, L.; Qiao, X. B.; Seo, H. J. // Applied Physics B: Lasers & Optics;Apr2010, Vol. 99 Issue 1/2, p279 

    Blue-emitting Li4SrCa(SiO4)2:Eu2+ phosphors have been synthesized by solid-state reaction. The photoluminescence (PL) excitation spectrum shows broad-band absorption and matches well with the emission of a near-UV (n-UV) chip. The PL emission spectrum exhibits a broad-band emission peaking at...

  • Activation of zinc sulfide luminescence by modifying its surface by organic solvents. Bacherikov, Yu.; Okhrimenko, O.; Tomashik, Z.; Lukiyanchuk, E.; Kardashev, K. // Journal of Applied Spectroscopy;Nov2005, Vol. 72 Issue 6, p877 

    The influence of the properties of the environment interacting with the surface of crystal phosphor on its radiative recombination has been considered. The influence of treatment with hexane and toluene on the state of the surface of powdery ZnS:Cu:Cl has been investigated. It has been shown...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics