Spectrum of Er3+ in Single Crystals of Y2O3

Kisliuk, P.; Krupke, William F.; Gruber, John B.

doi:10.1063/1.1725060

Cited by 109 publications

(65 citation statements)

References 15 publications

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“…The empirical level data of the "free" Er 3+ ions are obtained from Erbium-doped Y 2 O 3 single crystals. They were taken directly from the literature [11]. These free-ion energy levels reported in Table 1 are measured from the absorption spectrum at 4 K. The free ion-energy will be computed and compared with the observed values ( Table 1).…”

Section: Experimental Supportmentioning

confidence: 99%

“…Experimental evidence for ions in C 3i sites comes from electronic Raman scattering, from relatively few magnetic-dipole transitions identified with ions in C 3i sites and from g values deduced from EPR measurements of rare-earth ions doped into Y 2 O 3 [8][9][10]. Indeed, most of the data on C 3i sites reported in the bibliography are for the pure R 2 O 3 (R: Rare Earth) compounds, which have the same structure as Y 2 O 3 [11,12].…”

Section: Introductionmentioning

confidence: 95%

“…Particularly numerous studies have been carried out on the 4f 11 ion Er 3+ , which exhibits the standard telecommunication wavelength emission at 1.54 µm. Y 2 O 3 is an interesting host material for Er 3+ because Er 2 O 3 and Y 2 O 3 have the same crystal structure with nearly the same lattice constant.…”

Section: Introductionmentioning

confidence: 99%

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Crystal field analysis of erbium doped yttrium oxide thin films in C₂ and C_3i sites

Dammak¹,

Elleuch

Kamoun

et al. 2003

Physica Status Solidi (b)

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PACS 71.70. Ch, 78.30.Hv Fluorescence measurements on Er ions in Y 2 O 3 thin films have been analyzed with crystal-field Hamiltonians of C 2 and C 3i symmetries including J-mixing effects. Crystal-field parameters have been determined based on the Racah theory, that minimize the rms deviation between calculated and experimentally found energy. This theoretical analysis confirms the dominance of the C 2 symmetry site in the fluorescence spectrum; however in the infrared emission spectrum, the contribution of the two sites C 2 and C 3i is comparable.

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Section: Experimental Supportmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

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Crystal field analysis of erbium doped yttrium oxide thin films in C₂ and C_3i sites

Dammak¹,

Elleuch

Kamoun

et al. 2003

Physica Status Solidi (b)

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“…On the other hand it was found that the bands other than hypersensitive bands can acquire sensitivity due to the binding characteristics of the coordinating ligands, change in denticity, nature of the donor sites as well as nature of Ln(III)-Ligand bond and nature of complex species, which have induced significant intensity to the nonhypersensitive 4f-4f bands. Such transitions are known as pseudo-hypersensitive transitions [13][14][15]. Judd marked the hypersensitivity as due to the changes in symmetry of the environment of a lanthanide ion.…”

Section: B Methodsmentioning

confidence: 99%

A Probe into the Kinetics of the Interaction of Pr(III) Ions with Some Selected Amino Acids: A 4f-4f Transition Spectral Study

Moaienla¹,

Bendangsenla²,

Devi³

2014

AMSA

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“…[31], the emissions in the 545-520 and 570-546 nm regions may be ascribed to the 2 H 11/2 → 4 I 15/2 and 4 S 3/2 → 4 I 15/2 transitions, respectively. Considering that the emission peak is hardly shifted with the increase of Gd 3+ concentration, ∆E can be taken as a constant.…”

mentioning

confidence: 99%

Enhancement of upconversion luminescence of YAlO3: Er3+ by Gd3+ doping

Li¹,

Bao-shu²,

Xing³

et al. 2012

中国光学快报

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The upconversion luminescences of YAlO3:Er 3+ phosphor co-doping with different Gd 3+ concentrations are investigated under the excitation of 980-and 532-nm diode lasers. A near ultraviolet upconversion emission at 410 nm is observed in YAlO3 under 532-nm excitation. Moreover, the inactive Gd 3+ ions can improve the upconversion intensity efficiently in a certain range of concentration. Under 980-nm excitation, the visible upconversion emissions at 546 and 646 nm are enhanced by about 10 and 8 times at the Gd 3+ concentration of 40%, respectively. The upconversion emission at 410 nm under 532-nm excitation is also enhanced by 7 times. The substitution of Gd 3+ ions for Y 3+ sites changes the local symmetry of Er 3+ , leading to the improvement of upconversion efficiency.OCIS codes: 160.5690, 160.4670, 160.4760. doi: 10.3788/COL201210.081602.In the last several decades, the upconversion luminescence of rare-earth-ion-doped materials has been investigated extensively due to their wide applications in solid-state lasers, flat panel displays, biological labeling, and so on [1−3] . Er 3+ has been reported as one of the most popular and efficient ions for upconversion [4−8] . It can provide several intermediate levels with long life time, which can be directly pumped by several diode lights [9−14] . Recently, upconversion phenomena in Er 3+ -doped YAlO 3 crystals have been widely studied because of their high mechanical hardness and considerable thermal conductivity, among others. Several authors have reported upconversion luminescence in Er 3+ -doped YAlO 3 under 518-, 542.4-, 548.9-, 652.2-, and 980-nm excitations [10,15−17] . Therefore, it is very important to improve their upconversion efficiency. There are many factors affecting the upconversion efficiency, such as the local environment, the dopant concentration, and the distribution of active ions in host materials [18] . A recent study has reported that the luminescence intensity can be enhanced by changing the local environment of luminescent centers, which can be performed by doping some suitable inactive ions in the host. , xGd 3+ (x=0, 0.15, 0.25, 0.4, 0.5, and 0.7) was prepared through a solution combustion synthesis procedure. An aqueous solution containing citric acid, Y(NO 3 ) 3 , Er(NO 3 ) 3 , and Gd(NO 3 ) 3 was used to synthesize the Er 3+ and Gd 3+ co-doped YAlO 3 powders. A citric acid-to-metal nitrate molar ratio of 1.5:1 was employed to prepare the precursor solution. After the combustion, the precursor was calcined at 1 100• C for 2 h. The powders were characterized by X-ray diffraction (XRD) on a Bruker D8 advanced equipment (x) using Cu tube with K α radiation of 0.15406 nm in the 2θ range of 20• -60• . The morphology of the prepared powders was observed by scanning electron microscopy (SEM) using JSM-6610. Upconversion luminescence spectra excited by 980-and 532-nm lasers were obtained in the spectrophotometer (R-500, Japan Spectroscopic Co., Japan). All the measurements were performed at room temperature. Figure 1 shows the representat...

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Spectrum of Er3+ in Single Crystals of Y2O3

Cited by 109 publications

References 15 publications

Crystal field analysis of erbium doped yttrium oxide thin films in C₂ and C_3i sites

Crystal field analysis of erbium doped yttrium oxide thin films in C₂ and C_3i sites

A Probe into the Kinetics of the Interaction of Pr(III) Ions with Some Selected Amino Acids: A 4f-4f Transition Spectral Study

Enhancement of upconversion luminescence of YAlO3: Er3+ by Gd3+ doping

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Spectrum of Er3+ in Single Crystals of Y2O3

Cited by 109 publications

References 15 publications

Crystal field analysis of erbium doped yttrium oxide thin films in C2 and C3i sites

Crystal field analysis of erbium doped yttrium oxide thin films in C2 and C3i sites

A Probe into the Kinetics of the Interaction of Pr(III) Ions with Some Selected Amino Acids: A 4f-4f Transition Spectral Study

Enhancement of upconversion luminescence of YAlO3: Er3+ by Gd3+ doping

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Crystal field analysis of erbium doped yttrium oxide thin films in C₂ and C_3i sites

Crystal field analysis of erbium doped yttrium oxide thin films in C₂ and C_3i sites