Transient Rayleigh scattering from single semiconductor nanowires

Transient Rayleigh scattering spectroscopy is a new pump-probe technique to study the dynamics and cooling of photo-excited carriers in single semiconductor nanowires. By studying the evolution of the transient Rayleigh spectrum in time after excitation, one can measure the time evolution of the den...

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Bibliographic Details
Main Authors: Montazeri Mohammad, Jackson, Howard E, Smith, Leigh M, Yarrison-Rice, Jan M, Jung-Hyun, Kang, Gao Qiang, Tan, Hark Hoe, Chennupati, Jagadish
Format: Conference Proceeding
Language:English
Subjects:
Acoustic emission
Carrier recombination
Carrier transport
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Cooling
DENSITY
EMISSION
ENERGY LOSSES
Evolution
EXCITATION
Holes (electron deficiencies)
Nanowires
Phonons
QUANTUM WIRES
RAYLEIGH SCATTERING
SEMICONDUCTOR MATERIALS
SOLID-STATE PLASMA
SPECTRA
SPECTROSCOPY
TRANSIENTS
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Summary:Transient Rayleigh scattering spectroscopy is a new pump-probe technique to study the dynamics and cooling of photo-excited carriers in single semiconductor nanowires. By studying the evolution of the transient Rayleigh spectrum in time after excitation, one can measure the time evolution of the density and temperature of photo-excited electron-hole plasma (EHP) as they equilibrate with lattice. This provides detailed information of dynamics and cooling of carriers including linear and bimolecular recombination properties, carrier transport characteristics, and the energy-loss rate of hot electron-hole plasma through the emission of LO and acoustic phonons.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4848467