Controlled synthesis and luminescent properties of different morphologies GdBO3:Eu3+ phosphors self-assembled of nanoparticles

Two Penta-REIII Encapsulated Tetravacant Dawson Selenotungstates and Nanoscale Derivatives and Their Luminescence Properties

“…This evolution can be explained from the intrinsic morphology change of these nanomaterials (Figure S7). In addition, the PL decay time curves of all the 1@CTA nanomaterials at varying times and temperatures have been also collected (Figure c,d) and conform to the second-order exponential function (Table S1). It can be remarkably observed from Table S1 that the average lifetimes of all the 1@CTA nanomaterials at varying times and temperatures are shorter than that of 1 and are very close to that of 2 .…”

Synthesis Conditions on the Nature of GdBO3 Phase Formed

“…Observed variation in morphologies was explained based on the Ostwald ripening process. [12] Mono-dispersed, mono-concave, microsphere/micro-flower/nano-sheet of GdBO 3 :Eu were prepared by Zhu et al [14] It was observed in this study that samples prepared by hydrothermal method exhibited improved red to orange emission intensity ratio as compared to the sample prepared by solid state reaction. GdBO 3 particles co-doped with Yb 3 + and Tb 3 + , prepared by sol-gel assisted Pechini method, [16] showed both up and down conversion emission depending upon excitation wavelength.…”

“…Vaterite form of GdBO 3 , both in bulk and nano‐size dimensions, was prepared in different morphologies . As luminescence from Eu 3+ species is very sensitive to local environment and morphological changes, it is generally used as a probe in many of the above mentioned studies to monitor structural changes.…”

“…observed morphology dependent luminescent properties from GdBO 3 :Eu sample having cake like and olive like morphologies. Observed variation in morphologies was explained based on the Ostwald ripening process . Mono‐dispersed, mono‐concave, micro‐sphere/micro‐flower/nano‐sheet of GdBO 3 :Eu were prepared by Zhu et al .…”

“…Vaterite form of GdBO 3 , both in bulk and nano-size dimensions, was prepared in different morphologies. [12][13][14][15][16] As luminescence from Eu 3 + species is very sensitive to local environment and morphological changes, it is generally used as a probe in many of the above mentioned studies to monitor structural changes. For example, Leng et al [12,13] observed morphology dependent luminescent properties from GdBO 3 :Eu sample having cake like and olive like morphologies.…”