Yuqi Wang

Publications79
h-index15
Citations791
Highly Influential Citations11
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Analysis of optical absorption in GaAs nanowire arrays
TLDR
The calculations reveal that the optical absorption is sensitive to the geometric parameters such as diameter, length, and filling ratio, and more efficient light absorption can be obtained in GaAs NWAs than in thin films with the same thickness due to the combined effects of intrinsic antireflection and efficient excitation of resonant modes.
Theoretical analysis and modeling of light trapping in high efficicency GaAs nanowire array solar cells
A rigorous analysis and design of efficient light trapping for Gallium arsenide nanowire array (NWA) solar cells is presented. The influence of the geometric parameters on the optical absorption of…
Resistivity minima and Kondo effect in ferromagnetic GaMnAs films
The temperature dependence of the resistivity of ferromagnetic GaMnAs, as-grown or low-temperature-annealed samples is measured from 2to290K. A resistivity minimum is observed with a corresponding…
On-Demand Fabrication of Si/SiO2 Nanowire Arrays by Nanosphere Lithography and Subsequent Thermal Oxidation
TLDR
To fabricate the geometry controllable Si/SiO2 nanowire (NW) arrays, two critical issues relating with the size control of polystyrene reduction and oxide thickness evolution are investigated.
Thermal activation and thermal transfer of localized excitons in InAs self-organized quantum dots
We have investigated the temperature dependence of photoluminescence (PL) properties of a number of InAs/GaAs heterostructures with InAs layer thickness ranging from 0.5 monolayer (ML) to 3 ML. The…
Current self-oscillation induced by a transverse magnetic field in a doped GaAs/AlAs superlattice
We investigate the influence of a transverse magnetic field on the current-voltage characteristics of a doped GaAs/AlAs superlattice at 1.6 K. The current transport regimes-stable electric field…
Dynamic dc voltage band observed within each current branch in the transition from static to dynamic electric-field domain formation in a doped GaAs/AlAs superlattice
A dynamic dc voltage band was found emerging from each sawtooth-like branch of the current-voltage characteristics of a doped GaAs/AlAs superlattice in the transition process from static to dynamic…
Origin of the high performance of perovskite solar cells with large grains
Due to excellent carrier transport characteristics, CH3NH3PbI3 film made of large single crystal grains is considered as a key to improve upon already remarkable perovskite solar cell (PSC)…
Optical simulations of P3HT/Si nanowire array hybrid solar cells
TLDR
An optical simulation of poly(3-hexylthiophene) (P3HT)/Si nanowire array (NWA) hybrid solar cells was investigated to evaluate the optical design requirements of the system by using finite-difference time-domain (FDTD) method and an optimum geometric structure with a coating P3HT thickness of 80 nm was proposed.
The role of Zn interstitials in cobalt-doped ZnO diluted magnetic semiconductors
Co-doped ZnO samples Zn1−xCoxO and CoyZn1−yO were prepared by the sol-gel and magnetron sputtering methods, respectively. Although the Co K-edge extended x-ray absorption fine structure spectra show…
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