TY - JOUR

T1 - Measurement of electron capture probability in quantum well

AU - Maimon, S.

AU - Finkman, E.

AU - Schacham, S. E.

AU - Ritter, D.

AU - Bahir, G.

N1 - Funding Information:
This research was supported in part by the Israeli Ministry of Science.

PY - 1998/7/15

Y1 - 1998/7/15

N2 - A new method for measuring the capture probability of excited electrons into quantum wells is presented. Unlike previous techniques, this method is direct, and enables the determination of capture probability as a function of injected electron energy above the well. It is based on an HBT-like structure, with a quantum well as a base. The capture probability is the ratio between base and emitter currents. Two types of bases were studied, a highly p-doped and a low n-doped. The capture by the p+ well is much larger than by the n well, probably since the dominant capture mechanism is by electron-hole and electron-hole-plasmon in the former, while in the n doped well the capture is due to a polar optical phonon interaction.

AB - A new method for measuring the capture probability of excited electrons into quantum wells is presented. Unlike previous techniques, this method is direct, and enables the determination of capture probability as a function of injected electron energy above the well. It is based on an HBT-like structure, with a quantum well as a base. The capture probability is the ratio between base and emitter currents. Two types of bases were studied, a highly p-doped and a low n-doped. The capture by the p+ well is much larger than by the n well, probably since the dominant capture mechanism is by electron-hole and electron-hole-plasmon in the former, while in the n doped well the capture is due to a polar optical phonon interaction.

KW - Capture probability

KW - QWIP

KW - Quantum well

UR - http://www.scopus.com/inward/record.url?scp=0346308899&partnerID=8YFLogxK

U2 - 10.1016/S1386-9477(98)00049-6

DO - 10.1016/S1386-9477(98)00049-6

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AN - SCOPUS:0346308899

SN - 1386-9477

VL - 2

SP - 228

EP - 231

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-4

ER -