Modulation of geoacoustic emission intensity by time-varying electric field

2017 ◽  
Vol 17 (1) ◽  
pp. 1-9 ◽  
Author(s):  
V. A. Gavrilov ◽  
A. V. Naumov
Keyword(s):  
Electric Field ◽  
Emission Intensity ◽  
Time Varying ◽  
Geoacoustic Emission

Effect of Direct Current Electric Field Assisted Heat Treatment on the Luminescence Properties of TeO2-ZnO-Bi2O3 Glasses Containing Silver Nanoparticles

2021 ◽  
Vol 66 ◽  
pp. 13-25
Author(s):  
Min Hui Zhang ◽  
Jian Lin ◽  
Song Ye ◽  
Zi Min Zhu
Keyword(s):  
Heat Treatment ◽  
Silver Nanoparticles ◽  
Electric Field ◽  
Direct Current ◽  
Emission Intensity ◽  
Metallic Nanoparticles ◽  
Luminescence Properties ◽  
Luminescence Efficiency ◽  
Dc Electric Field ◽  
Current Electric Field

Introduction of metallic nanoparticles into glasses can obviously improve the up-conversion luminescence efficiency through surface plasmon resonance (SPR). In this research, the Er3+/Yb3+ co-doped TeO2-ZnO-Bi2O3 glasses containing silver nanoparticles and nanocrystals were prepared by direct current(DC) electric field assisted heat treatment, to study the effect of silver nanoparticles on the up-conversion luminescence properties of Er3+. The results show that, although the introduction of AgNO3 will weaken the thermal stability of TZB-ErYb to some extent, the number and size of silver nanoparticles can be increased after DC electric field treated at 100°C for 10 minutes. Meanwhile, the nanocrystals do not grow too large to affect the up-conversion emission intensity of Er3+. The up-conversion emission intensity of Er3+ in TZB-ErYb-6AgNO3-100°C-150V-10min is 43 times stronger than that of TZB-ErYb. These results indicate that DC electric field assisted heat treatment can synergistically adjust the silver nanoparticles and nanocrystals and is a promising method to improve the luminescence properties of tellurite glasses.

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