Related Experiment Video
Updated: Aug 6, 2025

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
Fuel-dependent, shape-selective, distinct blue and green photoluminescence from α-Bi2 O3 and β-Bi2 O3 synthesised
Aamir Bashir1, Sriraj S Mestry1, Pargam Vashishtha2,3,4
1Department of Chemical Engineering, School of Chemical and Civil Engineering, Manipal University Jaipur, Jaipur, India.
Abstract:
In the current study, α-Bi2 O3 and β-Bi2 O3 were synthesised using a one-step, novel, solid-solid combustion technique. The reaction rate was increased with the use of microwaves (molecular heating) compared to direct or indirect heating. A strong relationship was observed between the fuel, polymorphic structure, shape and optical properties of the synthesised Bi2 O3 . Photoluminescence studies reveal that two major visible emissions are observed for all samples. The two emissions are distinct with a broad peak in blue and a narrow peak in green. The intensity of the green characteristic emission depends strongly on the heating method used for synthesis and is more intense for microwave-synthesised samples.
Related Concept Videos
Photoluminescence: Applications
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Nuclear Transmutation

