2017
DOI: 10.1088/1612-202x/aa7418
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Upconversion luminescence of Ca1−xHoxF2+xand Sr0.98−xEr0.02HoxF2.02+xpowders upon excitation by an infrared laser

Abstract: Fluorite-type Ca 1−x Ho x F 2+x and Sr 0.98−x Er 0.02 Ho x F 2.02+x powders were synthesized using the co-precipitation from water solution technique. The upconversion luminescence of Ca 1−x Ho x F 2+x and Sr 0.98−x Er 0.02 Ho x F 2.02+x powders in the visible spectral region upon excitation of 5 I 7 level Ho 3+ ions and 4 I 13/2 level Er 3+ ions were studied for the first time. The possibility of visualizing near IR laser radiation using Ca 1−x Ho x F 2+x and Sr 0.98−x Er 0.02 Ho x F 2.02+x powders is propose… Show more

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Cited by 23 publications
(9 citation statements)
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“…Ash free filter paper (FP) "Blue Ribbon" (Iβ crystal structure, crystallinity index 68.7, degree of polymerization 1112, particle width 25-30, particle length 200-1500 µm, Table S1); TEMPO (99% pure; manufactured by NIOCH SB RAS, Russia); 3-aminopropyltriethoxysilane (97% pure; manufactured by PENTA-91 company, Russia); 19 wt.% sodium hypochlorite solution; sodium bromide; sodium hydroxide; acetic acid and hydrochloric acid (99.9% pure); double distilled water (regenerated cellulose dialysis tube, 12-14 kDa molecular weight cut-off, manufactured by Orange Scientific, Belgium); and up-conversion Sr 1-x Ho x F 2+x (x = 0.08 and 0.10) powders were used as starting materials. Sr 1-x Ho x F 2+x fluoride luminophores were prepared by the technique proposed earlier (Fedorov et al, 2017).…”
Section: Starting Materialsmentioning
confidence: 99%
“…Ash free filter paper (FP) "Blue Ribbon" (Iβ crystal structure, crystallinity index 68.7, degree of polymerization 1112, particle width 25-30, particle length 200-1500 µm, Table S1); TEMPO (99% pure; manufactured by NIOCH SB RAS, Russia); 3-aminopropyltriethoxysilane (97% pure; manufactured by PENTA-91 company, Russia); 19 wt.% sodium hypochlorite solution; sodium bromide; sodium hydroxide; acetic acid and hydrochloric acid (99.9% pure); double distilled water (regenerated cellulose dialysis tube, 12-14 kDa molecular weight cut-off, manufactured by Orange Scientific, Belgium); and up-conversion Sr 1-x Ho x F 2+x (x = 0.08 and 0.10) powders were used as starting materials. Sr 1-x Ho x F 2+x fluoride luminophores were prepared by the technique proposed earlier (Fedorov et al, 2017).…”
Section: Starting Materialsmentioning
confidence: 99%
“…Интенсивная апконверсионная люминесценция характерна для фторидных материалов со структурой флюорита MF 2 : RE (M = Ca, Sr, Ba) [7,[9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Это обусловлено тем, что данные материалы характеризуются низкой энергией фонона (∼ 466 cm −1 , CaF 2 [25]) и склонностью ионов активаторов к образованию кластеров даже при их малых концентрациях [26][27][28][29].…”
Section: Introductionunclassified
“…Интенсивная ап-конверсионная люминесценция наблюдается во фторидных материалах со структурой флюорита MF 2 : RE (M = Ca, Sr, Ba) [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Это обусловлено тем, что данные материалы характеризуются низкой энергией фонона (∼ 366 сm −1 SrF 2 [24]) и склонностью ионов активаторов к образованию кластеров даже при их малых концентрациях [14,[25][26][27][28].…”
Section: Introductionunclassified