Electron and hole ionization coefficients in (100) oriented Ga0.33In0.67As0.70P0.30

Abstract
The impact ionization coefficients for electrons and holes in (100) oriented Ga0.33In0.67As0.70P0.30 whose band gap is 0.92 eV have been obtained from photomultiplication measurements on a Zn diffused p+n abrupt junction having a donor concentration of 2×1016 cm3. It has been shown that the ionization coefficient for electrons is larger than that for holes by a factor of 1.5 over the electric field range from 3.3×105 to 4.3×105 V/cm.