D N GAME
Articles written in Bulletin of Materials Science
Volume 40 Issue 7 December 2017 pp 1441-1445
D N GAME C B PALAN N B INGALE S K OMANWAR
Nanocrystalline ZnS:Pb$^{2+}$ phosphor was synthesized by microwave-assisted co-precipitation method. Thephase purity and surface morphology of prepared material were investigated using an X-ray diffractometer (XRD) anda scanning electron microscope. The photoluminescence property was studied by near-UV (nUV) excitation. The XRDpattern of prepared phosphor matches well with that of an ICDD (International Center for Diffraction Data) file. Surfacemorphology of prepared phosphor was found to be in submicron range. As-prepared ZnS:Pb$^{2+}$ phosphor shows a greenemission under nUV excitation. As Pb$^{2+}$ ions are located on a regular Zn$^{2+}$ site they produce a green emission band inthe range of 400–650 nm, centred at 500 nm, under excitation wavelength of 357 nm, exhibiting luminescence propertiestypically observed for Pb$^{2+}$. Effect of concentration of Pb$^{2+}$ ions on emission intensity was studied. The colour co-ordinates of prepared phosphor were calculated and found to lie in the green region of Commission Internationale de l’Eclairagediagram.
Volume 43, 2020
All articles
Continuous Article Publishing mode
Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
Click here for Editorial Note on CAP Mode
© 2021-2022 Indian Academy of Sciences, Bengaluru.