Synthesis & Photoluminescence analysis of Eu3+ activated Zn2GeO4phosphor

The present paper discusses an important phosphor material which is Zn2GeO4. The phosphor is prepared by taking appropriate quantities of ZnO and GeO2 of AR grade. This completes solid state reaction. It is important to note here there is no evolving of the gases. Therefore this solid state reaction can be called as Green chemistry route. The phosphor Zn2GeO4: Base and Eu(0.5%) is Excited with 250, 255, 260, 265, 270, 275 nm the PL emission is found around 480nm. For 260nm excitation the PL emission intensity of 400nm peak is increased by 75%. It can be stated that the increase PL emission peak intensity of 480nm peak is due to Eu3+ present in Zn2GeO4. This PL emission intensity may be due to the emission from Eu3+ and or the energy transfer Eu3+ to Ge. One of its promising applications is to be used as phosphors in display technology such as field emission display which is considered to be the next generation flat panel displays.