Scalable Approaches to III-V Nanowires for Photodetection
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We have studied the indium and gallium incorporation during growth by chemical beam epitaxy of GaInAs, GaInP and GaInAsP alloys. TMIn, TEGa, cracked AsH3 and PH3 sources were used. The indium incorporation ratio remains nearly constant over the range of pa ...
This thesis deals with the monolithic integration of long wavelength (1.3-1.55 µm) p-i-n photodiodes with HEMT field effect transistors for the realization of wide bandwidth OEIC receivers for lightwave communication systems. Part of this work was carried ...
Identical GaAs/Al0.2Ga0.8As multiple-quantum-well (MQW) structures uniformly doped with Si at various concentrations ranging from 1x10(17) to 1X10(19) cm(-3) are grown by molecular-beam epitaxy to study the effects of the background Si-doping level on the ...
GaAs/AlxGa1-xAs multiple-quantum-well (MQW) structures with identical well thicknesses but with different Al contents x in the barrier (x almost-equal-to 0.1, 0.2, 0.45, and 1) were grown by molecular-beam epitaxy to study the impurity-induced disordering ...
We examine the room-temperature dispersive and non-dispersive cathodoluminescent (CL) signals produced by an n-InP/n(+)-InP homojunction as a function of excitation beam energy. The non-intentionally doped epilayer of the homojunction is thick enough (2.5 ...
In order to delay the occurrence of the 2D-3D growth mode transition in highly strained InxGa1-xAs epitaxial layers grown on GaAs (001) by molecular beam epitaxy, the mass transport at the surface should be reduced. This can be achieved by increasing the g ...
The local deposition of metal structures by thermal dissociation of trimethylaluminium, dimethylzinc and dimethylcadmium on GaAs surfaces heated by a CW krypton laser has been investigated. Piles of amorphous aluminium and zinc and crystalline structures o ...
We report the fabrication and characterization of lateral metal-semiconductor-metal (MSM) photodiodes on an InP substrate. The photoabsorbing layer is made of InGaAs covered by a thin InP Schottky barrier enhancement layer. Schottky contacts for the detect ...
The molecular-beam epitaxial growth conditions of (N + 1)(InAs)m/N(GaAs)n short period superlattices (SPSs) on GaAs substrates have been optimized. Hall electrical properties measured by the van der Pauw method were compared to low-temperature photolumines ...