Effect of annealing on the structural and optical properties of laser ablated nanostructured barium tungstate thin films

Physical analysis of aspirin in different phases and states using density functional theory

“…Higher wavelength (nm) values absorb more light with low transmittance. The optical energy gap Eg and absorption coefficient (α) are calculated from UV–Vis data to plot Tauc's relation, (αhν) 2 = A (hν-E g ) [ 47 ]. The optical band gap shows 4.5 and 2.5 eV for the neutral and anion states, respectively.…”