Photoabsorption Cross Section for Silicon Doped with Indium
- 15 September 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 4 (6), 1873-1876
- https://doi.org/10.1103/physrevb.4.1873
Abstract
The photo-ionization cross section for indium as an acceptor in a silicon lattice has been deduced from optical transmission coupled with wide-range Hall-effect measurements. The normalized energy dependence observed in our samples agrees well with results previously reported, but the cross section we report has a maximum value of at eV. This is several times smaller than has traditionally been believed. The effective field ratio necessary to fit our data with a quantum-defect model agrees well with the local field predicted for a cavity in a dielectric medium. The general form of the energy dependence of the cross section accords with a quantum-defect model, but we do find that the behavior for energies above 0.4 eV is dependent on the doping and degree of compensation in the crystal.
Keywords
This publication has 7 references indexed in Scilit:
- The photon-ionization cross-section of indium acceptors in siliconSolid State Communications, 1971
- Application of the Quantum-Defect Method to Optical Transitions Involving Deep Effective-Mass-Like Impurities in SemiconductorsPhysical Review B, 1969
- Spectroscopic Investigation of Group-III Acceptor States in SiliconPhysical Review B, 1967
- Application of quantum defect techniques to photoionization of impurities in semiconductorsJournal of Physics and Chemistry of Solids, 1967
- On the photoionization of deep impurity centers in semiconductorsSolid State Communications, 1965
- Absorption spectra of impurities in silicon—IJournal of Physics and Chemistry of Solids, 1956
- Optical Properties of Indium-Doped SiliconPhysical Review B, 1955