Raman spectroscopy
Niobium pentoxide
Materials science
Photoluminescence
Orthorhombic crystal system
Luminescence
Nanoparticle
Amorphous solid
Hexagonal phase
Pentoxide
Analytical Chemistry (journal)
Scanning electron microscope
Calcination
Sol-gel
Phase (matter)
Niobium
Chemical engineering
Nanotechnology
Crystallography
Crystal structure
Vanadium
Chemistry
Optics
Optoelectronics
Composite material
Metallurgy
Biochemistry
Physics
Catalysis
Organic chemistry
Engineering
Chromatography
