W/n-GaAs/In device
n Type Doping of Vapor–Liquid–Solid Grown GaAs Nanowires
... on n -GaAs is known to be challenging specially at low annealing temperatures due to the already mentioned Fermi level pinning and high density of surface states ...high-doped n-GaAs ...given ...
6
Characterization and Analysis of Multi-Quantum Well Solar Cells.
... with GaAs to form binary and ternary compounds that are electrically important [117, ...to n-GaAs ...the GaAs to form a very highly doped n-type surface that aids in reducing the ...
197
Electroluminescence on off ratio control off n−i−n GaAs/AlGaAs based resonant tunneling structures
... heterostructure device layouts of RTDs are rather simple, certain requirements must be achieved in order to produce high quality devices, ...purely n-doped RTDs, light emission occurs via ...
6
Characterisation of temperature dependent parameters of multi quantum well (MQW) Ti/Au/n AlGaAs/n GaAs/n AlGaAs Schottky diodes
... Schottky diodes are the basic building component in many semiconductor devices (field effect transistors, solar cells, photodetectors, Gunn diodes, microwave diodes, etc...) and integrated circuits, hence the intense ...
18
Finite Element Study of the Second Order (X²) Nonlinear Process of Second Harmonic Generation in Optical Waveguides
... Fig 6.18 Numerical simulation of various assumed loss values in a non-QPM GaAs device and b QPM GaAs device Fig 6.19 The effect of increased input power on efficiency of generated power [r] ...
282
Dilute nitride and GaAs n i p i solar cells
... GaInNAs n-i-p-i solar cell was taken using the same experimental condi- tions, and it is shown in Figure ...the device will collect carriers at the top layers (short wavelengths) while most of the carries ...
5
Electrical characteristics of silicon-doped GaAs lateral p-n junctions
... States for the band-tail has been shown to have either a Gaussian or exponential dépendance on energy [46-53]. The conduction band-tail DOS has been modelled by a Gaussian distribution, possessing a characteristic (mean) ...
185
Observation of hybrid Tamm plasmon exciton polaritons with GaAs quantum wells and a MoSe2 monolayer
... microcavity device: it consists of an AlAs/AlGaAs distributed Bragg reflector (DBR) (30 pairs), which is characterized spectrally by its stop band ranging from 710 to 790 nm ...embedded GaAs QWs (details can ...
6
Surface reactions of halogens and hydrocarbons on Si and GaAs: Application to ion-assisted device processing
... tio n is perform ...o n ion irrad iatio n b u t rem ains non-zero at all coverages which still display a p state ...iatio n times both the a and P states are com pletely rem ...show n ...
331
Continuous wave terahertz radiation from an InAs/GaAs quantum dot photomixer device
... For further clarification of the ultrafast behaviour of the structure, the antenna was driven using a mode-locked Ti:Sapphire laser operating at 780 nm wavelength, with pulses of 150 fs duration at a repetition rate of ...
5
Effects of rapid thermal annealing on device characteristics of InGaAs/GaAs quantum dot infrared photodetectors
... the GaAs barriers of our QDIP structure were grown at a low temperature of 550 ° C 共650 ° C is normally used to obtain good quality GaAs兲 to ensure the quality of dot formation, defects are inevitably ...
9
Optically controlled analogue to digital converters
... u n d er m ore ideal conditions than is possible in the case of the A uston sw ...u n d e r an alm ost constant bias voltage, ensuring that it is fully depleted at all ...the device will be operating ...
202
Optical and Mechanical Investigation of InAs /GaAs Quantum Dots Solar Cells and InAs Nanowires for the Application of Photovoltaic Device
... important parameters that determines the carrier escape process is the depth of quantum confinement (barrier height), which is from electrons or holes energy levels with respect to the GaAs band edge. This thesis ...
113
Fabrication and characterization of planar dipole antenna integrated with gaas based schottky diode for on chip electronic device application
... The “New IT Reform Strategy” is put in motion as a national strategy with an aim of realizing “a society in which everyone can feel the benefit of IT whenever and wherever,” namely, a ubiquitous network society. The ...
11
Self-consistent solutions to the intersubband rate equations in quantum cascade lasers: Analysis of a GaAs/AlxGa1-xAs device
... a device to reach a population inversion and works well in, for example, mid-infrared de- vices where the energy gaps are relatively large and phonon absorption less ...
8
Electrical Properties of a Ga0.952In0.048N0.016As0.984 p-i-n Schottky Barrier Diode
... of GaAs (Erol et ...and n-type GaAs diode is important for the current conduction mechanism on the metal-semiconductor (MS) interface (Kacha et ...metal/n-type GaAs such as ideality ...
8
Growth and Characterisation of GaAs/AlGaAs Core-shell Nanowires for Optoelectronic Device Applications
... The sidewalls of GaAs nanowires were found to transform to {110} facets at high temperature as a result of surface atom migration. The rate of the facet transformation was found to be controlled by temperature and ...
12
Submonolayer InGaAs/GaAs quantum dot solar cells
... The energy crisis and environmental issues require urgent development of renewable energies. Considerable attention has been paid to solar energy, which is abundant, inexhaustible, and clean [1]. To make solar energy ...
6
Optical and Mechanical Characterization of InAs/GaAs Quantum Dot Solar Cells
... State of the art triple junction solar cells have achieved in excess of 43% efficiency. In order to extend this beyond a multijunction-only design, novel approaches to photon conversion must be sought and realized. Two ...
162
Materials integration for high-performance photovoltaics by wafer bonding
... The fundamental efficiency limit for state of the art triple-junction photovoltaic devices is being approached. By allowing integration of non-lattice-matched materials in monolithic structures, wafer bonding enables ...
303