Chalcogen, Nonmetal, Monoclinic, Optics

• O-V
• Cu-O
• In-S-Tl
• K-Mo-O
• N-S
• phonons
• luminescence
• wavenumber of optical phonon
• values of luminescence
• optical absorption
• chalcogen
• nonmetal
• transitional
• non-disordered
• rare earth