Abstract
Optical properties of modulation-doped semiconductor quantum wires that are greatly different from those of the 2-D systems from which they are derived are reported. The nanostructures were fabricated from a high-mobility modulation-doped GaAs/AlGaAs single-quantum-well heterostructure. The 2-D electron density and mobility were n = 2.9 × 1011/cm2 and 1.4 × 106 cm2/V-s, respectively. Bandgap photoluminescence (PL) and PL excitation spectroscopies revealed properties of the conduction and valence band states that are not obtainable from transport or IR absorption measurements. The PL spectra and inelastic light scattering spectra are shown and discussed. The experiment demonstrated spatially separate confinement of electrons and holes in type-II multiple quantum wires.
Original language | English (US) |
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Pages | 36-37 |
Number of pages | 2 |
State | Published - 1990 |
Externally published | Yes |
Event | 17th International Conference on Quantum Electronics - IQEC '90 - Anaheim, CA, USA Duration: May 21 1990 → May 25 1990 |
Conference
Conference | 17th International Conference on Quantum Electronics - IQEC '90 |
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City | Anaheim, CA, USA |
Period | 5/21/90 → 5/25/90 |
All Science Journal Classification (ASJC) codes
- General Engineering