Spectral and kinetic characteristics of trivalent praseodymium in LaF3-LiF and SrAl12O19

Родный, П. А.; Потапов, А. С.; Voloshinovskii, А.

doi:10.1134/1.1771420

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…There are also compounds where thermostimulated 4f5d-4f 2 luminescence is not observed. This is the case for Pr 3+ -doped SrAlO 19 and it is attributed to a relatively large 1 S 0 -5d4f potential barrier [29].…”

Section: Luminescence Of Liprp 4 O 12 Upon Vuv Excitationmentioning

confidence: 87%

Photon cascade luminescence from Pr³⁺ ions in LiPrP₄O₁₂ polyphosphate

Shalapska¹,

Stryganyuk²,

Romanyshyn³

et al. 2010

J. Phys. D: Appl. Phys.

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The spectral-kinetic properties of luminescence from LiY1−x Pr x P4O12 (x = 1, 0.1) phosphors are studied in the 10–300 K temperature range upon excitation within the UV–VUV spectral range. The luminescence observed for LiPrP4O12 at low temperatures is attributed to both intra-configurational 4f2 → 4f2 and inter-configurational 4f5d → 4f2 radiative transitions of Pr3+. The temperature dependence of emission and the decay kinetics of Pr3+ luminescence from LiY1−x Pr x P4O12 (x = 1, 0.1) phosphors are explained by temperature stimulated transitions from the 1S0 to the Pr3+ 4f5d state. At low temperatures, the energy potential barrier between the 1S0 and 4f5d states is 0.014 eV for LiPrP4O12. The spectral overlap of the 1S0 and 4f5d states of Pr3+ in LiY0.9Pr0.1P4O12 determines the luminescence properties in the entire temperature range studied.

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Section: Luminescence Of Liprp 4 O 12 Upon Vuv Excitationmentioning

confidence: 87%

Photon cascade luminescence from Pr³⁺ ions in LiPrP₄O₁₂ polyphosphate

Shalapska¹,

Stryganyuk²,

Romanyshyn³

et al. 2010

J. Phys. D: Appl. Phys.

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“…Ðîçðàõîâàíà øèðèíà çàáîðîíåíî¨çîíè ñòàíîâèòü 9.6 åÂ, à îòðèìàíà âåëè÷èíà åôåêòèâíî¨ìàñè åëåêòðîíiâ â îêîëi äíà çîíè ïðîâiäíîñòi 0.33m 0 Êëþ÷îâi ñëîâà: çîííà ñòðóêòóðà, ìåòîä ïðè¹äíàíèõ ïðîåêöiéíèõ õâèëü, øèðèíà çàáîðîíåíî¨çîíè, äàóíêîíâåðñiÿ 1 Âñòóï Â îñòàííi ðîêè âèâ÷åííÿ åëåêòðîííèõ êîíôiãóðàöié 4f òà 5d ðiâíiâ òðüîõâàëåíòíèõ iîíiâ ëàíòàíiäiâ çäîáóâà¹ âåëèêó ïîïóëÿðíiñòü çàâäÿêè¨õ øèðîêîìó ïðàêòè-÷íîìó âèêîðèñòàííþ ó ôiçèöi âèñîêèõ åíåðãié, ìåäèöèíi, êîñìi÷íié ãàëóçi òà ó ñôåði ðàäiàöiéíî¨áåçïåêè [1]. Iîí Pr 3+ â ìàòðèöi LaF 3 âñå ÷àñòiøå ñòà¹ ïðåäìåòîì äîñëiäaeåíü áàãàòüîõ àâòîðiâ ÷åðåç ðÿä îñîáëèâîñòåé, çîêðåìà òàêèõ, ÿê êàñêàäíà åìiñiÿ ôîòîíiâ [2]. Íàÿâíiñòü êàñêàäíî¨åìiñi¨äîçâîëÿ¹ ðîçãëÿäàòè òàêi ìàòåðiàëè ç ìåòîþ ïîøóêó ëþìiíåñöåíöi¨iç êâàíòîâèì âèõîäîì áiëüøå îäèíèöi, ùî ¹ íåîáõiäíèì äëÿ ðîçðîáêè âèñîêîåôåêòèâíèõ ïåðåòâîðþâà÷iâ óëüòðàôiîëåòîâîãî âèïðîìiíþâàííÿ â âèäèìå.…”

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