Tm 3+ doped α-NaYF 4 single crystal for 2 μm laser application

Yang, Shuo; Xia, Haiping; Jiang, Yongzhang; Zhang, Jiazhong; Shi, Yiwen; Gu, Xiuquan; Zhang, Jianli; Zhang, Yuepin; Jiang, Haochuan; Chen, Baojiu

doi:10.1016/j.jallcom.2015.04.112

Cited by 28 publications

(11 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Up‐conversion (UC) materials, which have the ability to covert low energy photons that belong to near infrared (NIR) part of spectrum into higher energy photons of visible light, are of a great interest in the last decade due to their wide application such as solid‐state lasers, optical data storage, solar cells, temperature sensors, drug delivery carriers, scintillators, biomarkers . Such materials include tungstates, molybdates, oxides, fluorides, oxyfluorides, etc.…”

Section: Introductionmentioning

confidence: 99%

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF₄:Yb,Er phase

Vuković

Mančić

Dinić

et al. 2019

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Single phase β-NaY 0.8-x Gd x Yb 0.18 Er 0.02 F 4 nanoparticles with different concentrations of gadolinium ions were prepared via PVP-assisted solvothermal treating at 200°C (PVP-polyvinylpyrrolidone). With the increase in Gd 3+ concentration, size of the nanoparticles decreased. The up-converting spectra recorded upon 980 nm irradiation showed the green (510-560 nm) and red (640-690 nm) emissions, due to 2 H 11/2 , 4 S 3/2 → 4 I 15/2 and 4 F 9/2 → 4 I 15/2 transitions, respectively. The strongest up-conversion luminescence was detected in 15 mol% Gd 3+ -doped nanoparticles obtained after 20 hours of solvothermal treating. With the rise of Gd 3+ content up-conversion emission decreased due to increased defect concentration in the NaYF 4 matrix. Fourier transform infrared spectroscopy proved in situ generation of hydrophilic nanoparticles as a result of PVP ligands retention at the particle surface.

show abstract

Section: Introductionmentioning

confidence: 99%

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF₄:Yb,Er phase

Vuković

Mančić

Dinić

et al. 2019

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…The BaF 2 :Er 3+ , Yb 3+ UC material was synthesized following the Bridgman method . The nominal concentrations of Yb 3+ and Er 3+ are 15 and 2%, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The BaF 2 :Er 3+ , Yb 3+ UC material was synthesized following the Bridgman method. 28 The nominal concentrations of Yb 3+ and Er 3+ are 15 and 2%, respectively. These values represent the amount of doping ions in the initial charge before the growing process.…”

Section: ■ Experimental Detailsmentioning

confidence: 99%

“…Although the highest known upconversion quantum yield (UCQY) of 10.5% is found in β-NaYF 4 :21.4 mol % Yb 3+ , 2.2 mol % Er 3+ under 980 nm excitation, the large single crystals of β-NaYF 4 are unknown. Only less efficient α-NaYF 4 crystals can be easily grown using both Bridgman and Czochralski methods . Recently, UC materials that use MF 2 (M = Ca, Sr, Ba) hosts have been investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Only less efficient α-NaYF 4 crystals can be easily grown using both Bridgman 28 and Czochralski methods. 29 Recently, UC materials that use MF 2 (M = Ca, Sr, Ba) hosts have been investigated.…”

Section: ■ Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Harvesting Sub-bandgap Photons via Upconversion for Perovskite Solar Cells

Singh

Madirov

Busko

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Lanthanide-based upconversion (UC) allows harvesting subbandgap near-infrared photons in photovoltaics. In this work, we investigate UC in perovskite solar cells by implementing UC single crystal BaF 2 :Yb 3+ , Er 3+ at the rear of the solar cell. Upon illumination with high-intensity sub-bandgap photons at 980 nm, the BaF 2 :Yb 3+ , Er 3+ crystal emits upconverted photons in the spectral range between 520 and 700 nm. When tested under terrestrial sunlight representing one sun above the perovskite's bandgap and sub-bandgap illumination at 980 nm, upconverted photons contribute a 0.38 mA/cm 2 enhancement in the short-circuit current density at lower intensity. The current enhancement scales non-linearly with the incident intensity of subbandgap illumination, and at higher intensity, 2.09 mA/cm 2 enhancement in current was observed. Hence, our study shows that using a fluoride single crystal like BaF 2 :Yb 3+ , Er 3+ for UC is a suitable method to extend the response of perovskite solar cells to near-infrared illumination at 980 nm with a subsequent enhancement in current for very high incident intensity.

show abstract

Gain anticipation of Ho3+ in ion-exchangeable germanate waveguide glasses

et al. 2018

View full text Add to dashboard Cite

Tm 3+ doped α-NaYF 4 single crystal for 2 μm laser application

Cited by 28 publications

References 25 publications

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF₄:Yb,Er phase

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF₄:Yb,Er phase

Harvesting Sub-bandgap Photons via Upconversion for Perovskite Solar Cells

Gain anticipation of Ho3+ in ion-exchangeable germanate waveguide glasses

Contact Info

Product

Resources

About

Tm 3+ doped α-NaYF 4 single crystal for 2 μm laser application

Cited by 28 publications

References 25 publications

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF4:Yb,Er phase

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF4:Yb,Er phase

Harvesting Sub-bandgap Photons via Upconversion for Perovskite Solar Cells

Gain anticipation of Ho3+ in ion-exchangeable germanate waveguide glasses

Contact Info

Product

Resources

About

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF₄:Yb,Er phase

The gadolinium effect on crystallization behavior and luminescence of β‐NaYF₄:Yb,Er phase