Spectral studies on CuO in sodium�?�calcium borophosphate glasses

Bulletin of materials science

S SHAILAJHA²  P VASANTHARANI¹  K GEETHA² 

[1] Department of Physics, Annamalai University, Chidambaram 608002, India$$Department of Physics, Annamalai University, Chidambaram 608002, IndiaDepartment of Physics, Annamalai University, Chidambaram 608002, India$$;Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, India$$Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, IndiaDepartment of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, India$$

关键词: XRD;    optical bandgap;    luminescence;    copper phosphoborate glass.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Transparent borophosphate glasses doped with CuO were prepared by melt quenching technique. X-ray diffraction (XRD), optical and luminescence properties of sodium�?�calcium borophosphate glasses doped with CuO have been studied. The XRD results showed the amorphous nature of the sample. The introduction of CuO was favourable for the colour changes from light blue to dark bluish green colour. Direct optical energy bandgaps before and after doping with different percents of copper oxide obtained in the range 4.81�??2.99 eV indicated the role of copper in the glassy matrix by ultraviolet (UV) spectra. The glasses have more than 80% transparency for emission wavelength range, and strong absorption bands due to the charge transition of the Cu$^+$ and Cu$^{2+}$ ions were observed. The emission bands observed in the UV and blue regions are attributed to 3d$^9$4s�??3d$^{10}$ triplet transition in Cu$^+$ ion.

【 授权许可】

Unknown