The study of GaAsInGaAs δ-doping resonant interband tunneling diode

The δ-doping InGaAsGaAs quantum well resonant interband tunneling diode by low pressure metal organic chemical vapor deposition has been successfully grown. The full width at half maximum of the doping profile analyzed by capacitance-voltage measurement is small. Two kinds of δ-doping resonant interband tunneling diodes were simulated in this study. One was the δn+ -i-δp+ resonant interband tunneling structure and the other was the δn+ -i-δp+ -i-δn+ single barrier resonant interband tunneling structure. The simulated current-voltage characteristics exhibited the expected N-shaped negative differential resistance. The calculated peak-to-valley current ratio (PVCR) values of δn+ -i-δp+ and δn+ -i-δp+ -i-δp+ structures are 6 and 5.6, respectively. The calculated PVCR value is larger than experimental PVCR values for the δn+ -i-δp+ structure. The PVCR values of this study are better than the published data of other authors.