Down-shifting photoluminescence studies of thermally stable Dy3+ ions doped borosilicate glasses for optoelectronic device applications

Thermally stable Sm3+‐doped alkali zinc alumino borosilicate (AZABS) glass for warm white light generation and w‐LED applications

“…The XRD pattern is the same as has been reported by us in our earlier work showing a single broad hump signifying the amorphous nature of the prepared glass. [ 31 ] Thermal parameters have also been reported by us in our previous work. [ 42 ] The numerical values of peak crystallization temperature ( T c ), melting temperature ( T m ), glass transition temperature ( T g ), onset crystallization temperature ( T x ) and Hurby's thermal stability parameter (K H ) were observed to be the same as reported by us earlier.…”

“…It was used to calculate the optical bandgap of the as mentioned glass. The Tauc equation is given as [31] :…”

“…Since these glasses have high lifetimes, these can be utilized for lighting and display applications. [31] 3. are shown in Figure 11 and in Table 1. The coordinates fall in the reddish-orange region as can be seen from the diagram.…”

“…[19] Hence, certain metal oxides like silicon oxide (SiO 2 ) are mixed in the glasses to help reduce the phonon energies thereby increasing their luminescence efficiencies. [4,14,31] Aluminium oxide (Al 2 O 3 ) is added to the lattice as a network modifier. This results in an increase in the glass stability and luminescence along with higher solubility of RE ions.…”

“…This helps in the glassy nature enhancement of the lattice. [31,36] As is known, the luminescence properties of RE ions are dependent on 4f-4f transitions which can be tuned specifically for one's requirements by altering the chemical and physical interactions of these ions. [37] Samarium ion (Sm 3+ )-based materials find usage in many modern day applications of display devices, SSL and lasers, therapeutic research, optical communications, etc.…”