Finite Element Simulation of Metal–Semiconductor–Metal Photodetector
ثبت نشده
چکیده
LLE Review, Volume 119 154 Introduction Low-temperature–grown GaAs (LT-GaAs), deposited by molecular beam epitaxy, has been known for its ultrashort, subpicosecond photocarrier lifetime and relatively high carrier mobility. Therefore, in recent years LT-GaAs has been the material of choice for the fabrication of photonic devices such as photoconductive switches,1,2 both of the metal–semiconductor–metal (MSM)3 and freestanding types,4 for the generation of subpicosecond electrical pulses for ultrafast device characterization,5 THz time-domain spectroscopy,6 antennas for the generation and detection of THz radiation,7 as well as for optical photomixers.8,9
منابع مشابه
Finite Element Modeling and Simulation of Photoconductive and Ballistic Semiconductor Nanodevices
This thesis presents models, simulation techniques, and simulation results for two types of semiconductor nanodevice; the metal-semiconductor-metal (MSM) photodetector, and the ballistic deflection transistor (BDT). Our simulation tools were developed using the commercial ComsolTM finite element analysis (FEA) field solver to obtain the numeric solutions. Finite element models have been develop...
متن کاملSingle Si nanowire (diameter ≤ 100 nm) based polarization sensitive near-infrared photodetector with ultra-high responsivity.
We report the fabrication and optical response of boron-doped single silicon nanowire-based metal-semiconductor-metal photodetector. Typical single nanowire devices with diameter of ∼80-100 nm and electrode spacing of ∼1 μm were made using electron-beam lithography from nanowires, grown by a metal-assisted chemical etching process. A high responsivity, of the order of 10(4) A W(-1), was observe...
متن کاملFast UV detection by Cu-doped ZnO nanorod arrays chemically deposited on PET substrate
Well-aligned Cu-doped ZnO nanorods were successfully synthesized on polyethylene terephthalate (PET) substrate using chemical bath deposition method. The structural and optical properties of Cu-doped ZnO nanorods were investigated using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and photoluminescence (PL) spectroscopy...
متن کاملApplication of Metal-Semiconductor-Metal Photodetector in High-Speed Optical Communication Systems
متن کامل
Experimental and Finite Element Simulation of Nano-indentation on Metal Matrix Composites: Hardness Prediction
The scientific importance of nanocomposites are being increased due to their improvedproperties. This paper is divided into two parts. First, Al-Al2O3 nanocomposite wasproduced by using ball milling technique followed by cold compaction and sintering.Microstructure and morphology studies were done through SEM, TEM, and EDX anal-ysis on the produced powder. The mechanical properties of the produ...
متن کامل