Nanowires for Integrated Multicolor Nanophotonics
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Duan X., 2003, Molecular Nanoelectronics, 199
1987, Heterojunction
Photoluminescence measurements were made on individual NWs using a home‐built microluminescence instrument.[5 17]The data recorded on GaN CdS CdSeS CdSe and InP NWs typically showed luminescence maxima of ≈370 ≈510 ≈600 ≈700 and ≈820 nm respectively which are consistent with the bulk semiconductor bandgaps. The emission from InP NWs is blue‐shifted due to quantum confinement and other factors.[5 17]
Transport measurements were made on GaN CdS CdSeS CdSe and InP NWs in FET geometry with a back gate as described previously.[5‐8]In all cases positive gate voltage increases the conductance and negative gate voltages decrease the conductance of the NWs which is consistent with n‐type doping. The carrier mobility of each material is estimated from the transconductance with values: GaN 150–650 cm2 V−1 s; CdS CdSSe and CdSe 100–400 cm2 V−1 s; and InP 400–4000 cm2 V−1 s.
Madelung O., 1987, LANDOLT‐BORNSTEIN New Series:
Electrons are injected efficiently into the SiNW (from n‐GaN NW) at the initial diode turn‐on voltage of 1 V. Measurements in which the spectrometer detection range was extended to 1000 nm showed no evidence for bandgap emission from the SiNWs above the ≈1 V threshold.