Energy Structure of the Long-Wavelength Absorption Spectra Edge and Its Relationship to the Urbach Energy Eu and the Optical Band Gap Eg of C60 Films with Thicknesses of 5000 and ~1000 nm. Ukr. J. Phys. [Internet]. 2026 Sep. 7 [cited 2026 Sep. 11];71(9):705. Available from: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2023937