Effects of silver nanoparticles on the enhancement of up conversion and infrared emission in Er3+/Yb3+ co-doped phosphate glasses

The blue, green and red up conversion emissions were observed and the effect of the Ag NPs on the up conversion enhancement was investigated. The influence of the temperature on the PL intensity and the PL lifetime of PEr05Y1Ag1.5 glass sample were studied in the temperature range of 20-220 K.