Exciton and polaron properties in GaxIn1−xAs ternary mixed crystals

Energy Gaps, Optical Transitions, and Exciton Properties of ZnSe at High Pressures

“…Fundamentally, this is due to the fact that the free electron and proton masses are highly greater than the effective masses of the electron and hole, and that the dielectric constant diminishes the Coulomb interaction power in the atomic hydrogen more than in the exciton. 40 The exciton Bohr radius (a B D…”

“…Also, for generalizing the suggested relation for the exciton Bohr radius, we may construct an examination in which we calculate the exciton Bohr radius for other compound semiconductors. One should notice that in zinc-blende ZnSe, and in semiconducting materials in general, 40 the exciton possess for the most part a great radius which is bigger than the lattice constant. This can be attributed to the occurrence that a screening effect constructs smaller the Coulomb interaction between the electron and hole further.…”

“…Excitonic effects usually can be seen in the optical absorption and emission of semiconductor materials that have a direct energy gap. [37][38][39][40] At zero pressure, ZnSe crystallizes in zinc-blende structure. The understanding of mechanism of transitions becomes an interesting subject that has useful applications in technology.…”