Relationship between rare earth fluorescence characteristic and temperature - Details

author：

Lin, Yan-Jin (Lin, Yan-Jin.) ^[1] | Huang, Yan-Tang (Huang, Yan-Tang.) ^[2] (Scholars：黄衍堂) | Wu, Jin-Shu (Wu, Jin-Shu.) ^[3] | Li, Qiang-Long (Li, Qiang-Long.) ^[4]

Indexed by：

EI Scopus PKU CSCD

Abstract：

In　order　to　get　the　relationship　between　rare　earth　luminescence　fluorescence　characteristic　parameters　(including　fluorescence　lifetime,　intensity　and　branching　ratio)　and　temperature.　The　relationship　between　the　particle　number　distribution　of　the　excited　levels　and　temperature　was　studied　using　the　typical　level　structure　of　rare　earth　materials　and　the　Boltzmann　distribution　of　thermal　equilibrium　between　the　multiple　level　of　excited　state.　It　was　found　that　with　the　increase　of　temperature,　fluorescence　life　and　branching　ratio　of　high　level　in　excited　state　are　increase　too.　And　the　intensity　of　fluorescence　will　decrease　after　increase　first　due　to　the　influence　of　non-radiation　transition　coefficient　and　energy　transfer　efficiency.　Forwardly,　a　experiment　was　designed　to　measure　the　fluorescence　characteristic　parameter　of　Y(P,V)O4:Eu3+,　pumped　at　the　wavelength　of　395　nm,　at　different　temperatures　from　95　K　to　510　K.　The　experimental　results　are　in　good　agreement　with　the　theory　conclusion.　©　2016,　Science　Press.　All　right　reserved.

Keyword：

Boltzmann equation Energy transfer Excited states Fluorescence Luminescence Rare earths Spectrum analysis

Community：

[ 1 ] [Lin, Yan-Jin]Institute of Physics And Information Engineering, Fuzhou University, Fuzhou; 360108, China
[ 2 ] [Huang, Yan-Tang]Institute of Physics And Information Engineering, Fuzhou University, Fuzhou; 360108, China
[ 3 ] [Wu, Jin-Shu]Institute of Physics And Information Engineering, Fuzhou University, Fuzhou; 360108, China
[ 4 ] [Li, Qiang-Long]Institute of Physics And Information Engineering, Fuzhou University, Fuzhou; 360108, China