Optical properties of Ce3+-doped oxide glasses and correlations with optical basicity

Bei, Jiafang; Qian, Gujie; Xiaoluan, Liang; Yuan, Shu; Yang, Yunxia; Chen, Guorong

doi:10.1016/j.materresbull.2006.10.020

Cited by 107 publications

(47 citation statements)

References 12 publications

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“…Initially, the 0.5 mol.L -1 SnCl 4 .5H 2 O aqueous solution is prepared, followed by addition of an appropriate amount of Ce(NO 3 ) 3 .6H 2 O in order to obtain the desired doping of Ce +3 . Concentrated NH 4 OH is added to the solution under stirring with a magnetic bar, until no more precipitation takes place (pH 11). This procedure provides a viscous and whitish solution and the resulting suspension is submitted to dialysis against distilled water for about 10 days for elimination of Cl -and NH 4 + ions.…”

Section: Methodsmentioning

confidence: 99%

“…Concentrated NH 4 OH is added to the solution under stirring with a magnetic bar, until no more precipitation takes place (pH 11). This procedure provides a viscous and whitish solution and the resulting suspension is submitted to dialysis against distilled water for about 10 days for elimination of Cl -and NH 4 + ions. Thin films are deposited by dip-coating technique on borosilicate glass substrates with a withdrawal rate of 10cm/min.…”

Section: Methodsmentioning

confidence: 99%

“…Level 5d presents strongly lattice interaction and the first dipole transition suffers a spectroscopic redshift when incorporated into a crystal, being shifted towards lower energy compared to the free ion [3]. Optical excitation of different types of glasses yields emission in the range 300 to 450 nm, depending on the matrix [4]. Broad blue-green emission has been recorded around 489nm, being attributed to the transition from 5d excited level ( 2 D) to 4f ground state of Ce 3+ [5].…”

Section: Introductionmentioning

confidence: 99%

“…Broad blue-green emission has been recorded around 489nm, being attributed to the transition from 5d excited level ( 2 D) to 4f ground state of Ce 3+ [5]. The ground state of the Ce 3+ ion is a doublet ( 2 F 5/2 and 2 F 7/2 ) and then, the emission from the 5d excited state is expected to show two peaks, which usually does not happen due to the lack of specific symmetry or long-range periodicity in the matrix [4]. The knowledge of optically excited electrical characteristics in Ce-doped SnO 2 is fundamental for design and operation of electroluminescent devices.…”

Section: Introductionmentioning

confidence: 99%

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Optical excitation of charge carriers from intra-bandgap states in Ce-doped SnO[sub 2] thin films

Silva¹,

Pineiz²,

Morais³

et al. 2008

AIP Conference Proceedings

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Abstract. Optical excitation of Ce 3+ -doped SnO 2 thin films, obtained by the sol-gel-dip-coating technique, is carried out and the effects on electrical transport are evaluated. Samples are doped with 0.1at% of Ce, just above the saturation limit. The excitation is done with an intensity-controlled halogen-tungsten lamp through an interference filter, yielding an excitation wavelength of 513nm, 9 nm wide (width at half intensity peak). Irradiation at low temperature (25K) yields a conductivity increase much lower than above bandgap light. Such a behavior assures the ionization of intra-bandgap defect levels, since the filter does not allow excitation of electron-hole pairs, what would happen only in the UV range (below about 350nm). The decay of intra-bandgap excited levels in the range 250-320 K is recorded, leading to a temperature dependent behavior related to a thermally excited capture cross section for the dominating defect level.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical excitation of charge carriers from intra-bandgap states in Ce-doped SnO[sub 2] thin films

Silva¹,

Pineiz²,

Morais³

et al. 2008

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…Over the past several years, a great deal of work has been carried out in the development and characterization of a wide variety of optical glasses for different applications [1][2][3][4][5][6][7][8][9]. In recent years, a special interest has been focused towards the production of fluoro-borate glasses because of their potential applications as luminescent materials [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Emission analysis of RE3+ (Eu3+, Tb3+ & Ho3+): B2O3-BaO-LiF/AIF3 glasses

Rudramadevi

Buddhudu

2009

Indian J Phys

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We report here the luminescence spectra of certain rare earth ions (Eu 3+ , Tb 3+ & Ho 3+ ) doped B 2 O 3 -BaO-LiF/AiF 3 based on the measurements of emission and decay curves of prominent emission transitions. For both the reference host glasses, FTIR, XRD, DTA-TG profiles have been recorded to understand their structural and thermal properties. Eu 3+ doped glasses have shown five emission transitions of 5 D 0 → 7 F 01,2,3 & 4 located at 580nm, 593nm, 615nm, 655nm and 704nm respectively with an excitation at λ exci = 392 nm ( 7 F 0 → 5 L 6 ). Also under an UV source, these europium glasses have displayed a bright red emission from their surfaces. Tb 3+ glasses have exhibited four emission bands of 5 D 4 → 7 F 6,5,4,3 at 491nm, 547nm, 588nm and 625nm respectively with an excitation at λ exci = 376 nm ( 7 F 6 → 5 G 6 ). Intense green emission from the glass surfaces has been noticed upon exposure to the UV source. Prominently bluish-green emission has been noticed from the surfaces of the holmium glasses under an UV source and same emission transition ( 5 F 4 → 5 I 8 ) at 519 nm with an excitation at λ exci = 389 nm ( 5 I 8 -5 G 4 ) has also been obtained from their measured emission spectra. For all the prominent emissions of the rare earth glasses, decay curves have been measured to compute their lifetimes.

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Tunable Full‐Color Mechanoluminescence in Rare Earth‐Doped Transparent Amorphous Glass

Zhang,

Yang,

Xiao

et al. 2024

Adv Funct Materials

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Mechanoluminescence (ML) with the unique mechanical‐to‐optical energy conversion attracts wide attention for stress sensing. However, the development of ML materials is primarily based on crystalline material due to the crystal structure can provide an appropriate crystal field environment for emission center, which limits the expansion of ML materials and affects the deeper understanding of ML mechanism. Herein, the tunable full‐color ML can be achieved in transparent amorphous glass system. The rare earth‐doped transparent amorphous glass can produce ML under stress stimulations when in direct contact with polydimethylsiloxane (PDMS) or mixed with PDMS to prepare the ML elastomers. Based on the excellent ML performance of amorphous glass, an advanced device regarding the visualized detection of automotive brake tribo‐force has been developed. The findings provide profound insights into the triboelectric potential induced ML phenomenon, which offers the guiding significance in the mechanics‐related visualized detection and the design of multi‐color ML materials in the future.

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Optical properties of Ce3+-doped oxide glasses and correlations with optical basicity

Cited by 107 publications

References 12 publications

Optical excitation of charge carriers from intra-bandgap states in Ce-doped SnO[sub 2] thin films

Optical excitation of charge carriers from intra-bandgap states in Ce-doped SnO[sub 2] thin films

Emission analysis of RE3+ (Eu3+, Tb3+ & Ho3+): B2O3-BaO-LiF/AIF3 glasses

Tunable Full‐Color Mechanoluminescence in Rare Earth‐Doped Transparent Amorphous Glass

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