Y. Xu et al., DIRECT MEASUREMENT OF DOPING DENSITY AND BARRIER LOWERING EFFECT WITHBIAS IN QUANTUM-WELLS, Electronics Letters, 31(4), 1995, pp. 320-321
An experimental method for determining the doping density in thin-shee
t semiconductor material such as quantum wells (QWs) is demonstrated i
n GaAs/AlGaAs multiquantum-well infra-red photodetectors. The results
agree very well with the conventional Hall measurement method. Barrier
lowering effect with bias in QWs is determined experimentally.