White light generation from Dy3+ doped tellurite glass

Thermal expansion and structural properties of some (PbO)x(ZnO)35−x(TeO2)65 glasses

“…Glasses based on TeO 2 are of interest from the materials promising for development in telecommunication applications. Those have a wide glass-forming region, a wide spectral region of optical transmittance, a high refractive index, a relatively low temperature of preparation, and the ability to host rare earth elements [1][2][3][4]. For a recent review related to TeO 2 based glasses, see Ref.…”

Tailoring the luminescence of Eu3+ co-doped Dy3+ incorporated aluminofluoro-borophosphate glasses for white light applications

“…The absorption coefficient α(ν) derived from Mott and Davis theory have been used to establish the relationship between band gap and absorption coefficient α(ν) and is expressed as (αhν) n ¼ B (hν À E g ). where, B is a constant known as band tailing parameter, E g is the optical band gap, ћω is the photon energy of the incident radiation and n is an index can have values as 2, 2/3, 1/2 and 1/3 depending upon the nature of transition from the valance band to the conduction band such as direct allowed, direct forbidden, indirect allowed and indirect forbidden transitions respectively [39]. Tauc plot of the prepared glasses are shown in Fig.…”

Excitability of high-energy ultraviolet radiation for Dy3+ in antimony phosphate glasses

“…The host material of glass is a non-negligible factor for the active RE 3+ to obtain efficient florescence [8][9][10][11][12][13][14][15][16][17][18][19]. Among all oxide glass laser materials, phosphate glasses have been a subject of considerable interest due to their unique properties such as high transparency, low production cost, high RE 3+ ion solubility and large emission cross section [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. Up to now, many researchers have devoted themselves with great enthusiasms to the studies of RE 3+ doped phosphate glass systems, and great achievements have been reported on their spectral characteristics [36][37][38].…”