Luminescence and energy transfer mechanism of KZnPO4: Dy3+, Eu3+

Bright white light emission from lanthanide oxide LaGdO3 for LED lighting by Bi3+ to Eu3+ energy transfer

“…Therefore, the electrical multipole interactions are responsible for concentration quenching. Moreover, the following equation characterizes the interaction type in accordance with the Dexter theory: 19,20 where x and I are the concentration of the Bi 3+ ion and its corresponding emission intensity, respectively, while A is a constant. The interaction type can be roughly characterized by examining the value of the parameter θ in this equation.…”

“…Therefore, the electrical multipole interactions are responsible for concentration quenching. Moreover, the following equation characterizes the interaction type in accordance with the Dexter theory: 19,20 log…”

Luminescence Studies of Transition Metal (Cu+ and Ag+ Ions) Activated Alkali Zinc Mixed Phosphate

“…The PL emission intensity wavelength range between 380 nm to 500 nm with Cu + ions concentrations. Under the 375 nm excitation wavelength, the PL emission spectra show a sharp emission band at 425 nm [22]. The stoke shift for the phosphor was found to be 55 nm.…”