Electronic properties of three- and low-dimensional semiconducting materials with Pb halide and Sn halide units
Year: 1996
Type: article
Abstract: Band-structure calculations, semiempirical as well as ab initio , have been applied to study the electronic band gap of the new exotic natural low-dimensional MX systems (where M = Pb or Sn and X = I, Br or Cl). Moreover, variational calculations are employed to calculate the excitonic binding energies, whose amplification is due not only to the quantum confinement of the excitons but also to a dielectric enhancement effect. A single set of semiempirical parameters is sought to describe the materials; comparison of the calculations with experimental data shows this to be successful in the case of the PbI- and PbBr-containing compounds. .
Authors: I B Koutselas, L Ducasse, G C Papavassiliou
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1978513690