ABSTRACT:

Compositionally step-graded InGaAs/GaAs(0 0 1) buffers with overshooting (OS) layers were evaluated by several characterization techniques for higher efficiency metamorphic III–V multijunction solar cells. By high-resolution X-ray diffraction, we found that fully relaxed or tensile strained top layers can be obtained by choosing appropriate OS layer thickness. Moreover, from real-time structural analysis using in situ X-ray reciprocal space mapping (in situ RSM), it was proved that the top layer is almost strained to the OS layers, and it is independent of the thicknesses of the OS layers. Dislocations in the vicinity of the OS layers were observed by transmission electron microscopy, and the validity of results of in situ RSM was confirmed from the viewpoint of misfit dislocation behavior. Finally, by photoluminescence measurements, we showed that tensile strained top layers may be suitable for the improvement of minority-carrier lifetime.


Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here


PROJECT TITLE :Cost-Optimal Caching for D2D Networks With User Mobility: Modeling, Analysis, and Computational Approaches - 2018ABSTRACT:Caching well-liked files at the user equipments (UEs) provides an efficient way to alleviate
PROJECT TITLE :Design, Analysis, and Implementation of ARPKI: An Attack-Resilient Public-Key Infrastructure - 2018ABSTRACT:This Transport Layer Security (TLS) Public-Key Infrastructure (PKI) is based on a weakest-link security
PROJECT TITLE :TSCA: A Temporal-Spatial Real-Time Charging Scheduling Algorithm for On-Demand Architecture in Wireless Rechargeable Sensor Networks - 2018ABSTRACT:The collaborative charging issue in Wireless Rechargeable Sensor
PROJECT TITLE :Enhanced Model and Real-Time Simulation Architecture for Modular Multilevel Converter - 2017ABSTRACT:This paper presents i) identical model of the [*fr1]-bridge modular multilevel converter (HB-MMC) that is suitable
PROJECT TITLE :Decentralized Voltage Regulation for PV Generation Plants Using Real-Time Pricing Strategy - 2017ABSTRACT:Photovoltaic (PV) generation may cause a voltage rise at the interconnection purpose due to reverse power

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry