Time-resolved emission spectroscopy of Pr3+ in a fluoride glass

Thermal population of the4f15d1state inVink1, Dorenbos2, Eijk3 2002Phys. Rev. B221140View full textAdd to dashboardCite

“…The quantum cutting process, i.e., gaining two emitted photons from one absorbed photon, is interesting for phosphors applied in lighting or plasma display panels. Quantum cutting was discovered in 1974 for YF 3 :Pr 3ϩ1,2 and has been reported for several fluoride, 1-5 aluminate, 6,7 borate 8,9 and sulfate [10][11][12] hosts.…”

Photon cascade emission in SrAlF5:Pr3

“…Wegh et al showed quantum cutting in LiGdF 4 doped with Eu 3+ [3], and with both Er 3+ and Tb 3+ [4]. The Pr 3+ ion shows quantum cutting in a large number of hosts, such as fluorides [5][6][7][8][9] and oxides [10][11][12][13][14][15][16]. However, not all hosts show quantum cutting (when doped with Pr 3+ ).…”

Studies of the spectroscopic properties of lead–gallium oxyfluoride (LGOF) glasses and glass–ceramics activated by Pr 3+ ions

“…Thus the 3 P J states, fed this way, can be a source of further transitions, especially 3 P 0  3 F 2 transition responsible for the monitored 650 nm emission peak. The transition 1 S 0  1 I 6 , 3 P J , crucial for our interpretations, is well known [20,23,30], and we also have registered it along with transitions from 1 S 0 to lower lying f-states (Fig. 9).…”

“…Here also the energy barrier between 4f5d and 1 S 0 state is practically lacking. Hence the only transitions can take place from the 1 S 0 state to the lower lying states ( 1 I 6 , 3 P J ) [20,23]. Thus the 3 P J states, fed this way, can be a source of further transitions, especially 3 P 0  3 F 2 transition responsible for the monitored 650 nm emission peak.…”

“…The results are presented in Fig. 7 where we can see all the previously assigned features and a distinct peak around 500 nm (20000 cm -1 ) which can be ascribed to 3 P 0  3 H 4 transitions [17,19,20]. We focused our attention only on these peaks that are important by means of registered luminescence excitation spectra and further interpretations.…”