Silver metal enhanced photoluminescence of Tm3+ doped GeS2–Ga2S3–CsCl glasses

Wang, Xu; Chen, Danping; Yan, Qiqi; Ren, Jing; Chen, Guorong

doi:10.1016/j.jnoncrysol.2012.08.009

Cited by 11 publications

(4 citation statements)

References 18 publications

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“…Finally, the electrons transit to the 1 G 4 state via ESA. 34,35 Another possible pathway is the ETU process: 3…”

Section: Uc Mechanisms Of 481 Nm Emissionmentioning

confidence: 99%

“…Here, electrons in the 1 G 4 state relax to the 3 F 2,3 state, and then transit to the 1 D 2 state through absorbing 800 nm photons. 35 The other pathways involves ETU processes, where the pairs of states involved in ETU are both lower than the 1 D 2 state. These processes include E1: 1 G 4 + 3 F 4 -3 H 6 + 1 D 2 , 43,52 E2: 3 54,55 and E6: 3 F 3 + 3 F 3 -3 H 6 + 1 D 2 .…”

Section: Uc Mechanisms Of 456 Nm Emissionmentioning

confidence: 99%

“…To clarify the ET channels of codoped UCNPs, it is useful to clarify the excitation processes of single Tm 3+ -doped UC materials. The UC luminescence of single Tm 3+ -doped materials excited by an 800 nm laser is rarely reported because of the extremely weak luminescent intensity, 34,35 but it is still necessary and viable to investigate the UC mechanisms.…”

Section: Introductionmentioning

confidence: 99%

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Mechanisms of the blue emission of NaYF₄:Tm³⁺ nanoparticles excited by an 800 nm continuous wave laser

Jia

Shang

Zhang

et al. 2016

Phys. Chem. Chem. Phys.

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A thorough understanding of energy transfer and upconversion (UC) processes between trivalent lanthanide (Ln(3+)) ions is essential and important for improving UC performance. However, because of the abundant energy states of Ln(3+) ions, UC mechanisms are very complicated, which makes it a challenge to exclusively verify and quantitatively evaluate the dominant process. In this study, the fundamental excitation processes of Tm(3+)-doped NaYF4 nanocrystals under 800 nm continuous wave (CW) laser excitation were experimentally investigated on the basis of the quantum transition principle. An 800 nm CW laser combined with other wavelength CW lasers, including 471 nm, 657 nm, 980 nm, and 1550 nm lasers, were designed to study in-depth the excitation processes of UC luminescence via simultaneous two-wavelength laser excitation. The results indicate that the excited state absorption of (3)H6→(3)H4∼∼(3)H5→(1)G4 is the dominant pathway of the 481 nm and 651 nm emission bands, and two kinds of energy transfer UC pathways, uniformly expressed as (1)G4 + (3)H4→(1)D2 + (3)F4, play the primary roles in the 456 nm emission band.

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“…Finally, the electrons transit to the 1 G 4 state via ESA. 34,35 Another possible pathway is the ETU process: 3…”

Section: Uc Mechanisms Of 481 Nm Emissionmentioning

confidence: 99%

Section: Uc Mechanisms Of 456 Nm Emissionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanisms of the blue emission of NaYF₄:Tm³⁺ nanoparticles excited by an 800 nm continuous wave laser

Jia

Shang

Zhang

et al. 2016

Phys. Chem. Chem. Phys.

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“…Significant successes in this field are associated with the possibility of chemical-technological modification of elements based on chalcogenide glasses GeS 2 -Ga 2 S 3 through components that give new properties [7][8][9][10][11]. Thus, the basic functionality of glasses can be effectively combined with the high transparency of halides in the visible part of the spectrum, creating mixed chalcogenide-halide glasses [12][13][14][15]. The combination of optical properties with flexibility in the choice of composition and synthesis technology makes it indispensable in photonics.…”

Section: Introductionmentioning

confidence: 99%

Modification of free-volume defects in the GaS2–Ga2S3–CsCl glasses

Klym

Calvez

Попов

2023

J Mater Sci: Mater Electron

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Modification of free-volume positron trapping defects in the GaS 2 -Ga 2 S 3 -CsCl chalcogenide glasses was studied using positron annihilation lifetime spectroscopy and Doppler broadening of annihilation radiation methods. It is shown that the addition of CsCl to the main glass matrix leads to agglomeration of internal free-volume defects, which are di-or tri-atomic vacancies. However, an excessive amount of CsCl component causes a decrease in the size and content of these defects in the internal structure of the glass against the background of water adsorption in nanovoids with a radius of 0.3 nm. The obtained results are confirmed by normal and abnormal trends in the correlation of the S parameter, which characterizes the annihilation of positrons with low-momentum valence electrons and the W parameter, which corresponds to the annihilation of positrons with high-momentum core electrons.

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Fundamentals of Glass and Glass Nanocomposites

Karmakar

2016

Glass Nanocomposites

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Silver metal enhanced photoluminescence of Tm3+ doped GeS2–Ga2S3–CsCl glasses

Cited by 11 publications

References 18 publications

Mechanisms of the blue emission of NaYF₄:Tm³⁺ nanoparticles excited by an 800 nm continuous wave laser

Mechanisms of the blue emission of NaYF₄:Tm³⁺ nanoparticles excited by an 800 nm continuous wave laser

Modification of free-volume defects in the GaS2–Ga2S3–CsCl glasses

Fundamentals of Glass and Glass Nanocomposites

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Silver metal enhanced photoluminescence of Tm3+ doped GeS2–Ga2S3–CsCl glasses

Cited by 11 publications

References 18 publications

Mechanisms of the blue emission of NaYF4:Tm3+ nanoparticles excited by an 800 nm continuous wave laser

Mechanisms of the blue emission of NaYF4:Tm3+ nanoparticles excited by an 800 nm continuous wave laser

Modification of free-volume defects in the GaS2–Ga2S3–CsCl glasses

Fundamentals of Glass and Glass Nanocomposites

Contact Info

Product

Resources

About

Mechanisms of the blue emission of NaYF₄:Tm³⁺ nanoparticles excited by an 800 nm continuous wave laser

Mechanisms of the blue emission of NaYF₄:Tm³⁺ nanoparticles excited by an 800 nm continuous wave laser