Optical absorption edge and Urbach's rule in mixed single crystals of (GaxIn1−x)2Se3 in the indium rich region

The Long-Wavelength Edge of Photographic Sensitivity and of the Electronic Absorption of Solids

F. Urbach · Physical Review · 1953 · 5.9K citations

Natural Sciences, Materials Science, Optical Materials +14

Temperature dependence of the energy gap in semiconductors

Y. P. Varshni · Physica · 1967 · 5.3K citations

Natural Sciences, Materials Science, Physics +16

Intensity of Optical Absorption by Excitons

R. J. Elliott · Physical Review · 1957 · 2.1K citations

Natural Sciences, Physics, Condensed Matter Physics +16

Disorder and the Optical-Absorption Edge of Hydrogenated Amorphous Silicon

George D. Cody, T. Tiedje, B. Abeles et al. · Physical Review Letters · 1981 · 1.2K citations

Natural Sciences, Materials Science, Physics +17

Toward a Unified Theory of Urbach's Rule and Exponential Absorption Edges

John D. Dow, David Redfield · Physical review. B, Solid state · 1972 · 739 citations

Natural Sciences, Materials Science, Physics +12