HETEROSTRUCTURE BUFFER LAYERS

Epitaxy and growth of titanium buffer layers on

The structure and growth of thin films of titanium on α−Al2O3 at room temperature were investigated though in situ RHEED observations. Two different structures coexists at low coverage. One corresponds to the Ti(0001) ‖ Al2O3(0001), Ti[1100] ‖ Al2O3[2110] and Ti[1010] ‖ Al2O3[1100] epitaxy of the α phase of titanium reported before for thick films prepared at high temperature. The other structu...

Organic Solar Cells Performances Improvement Induced by Interface Buffer Layers

Improving the performance of cadmium telluride solar cell (CdTe) with different buffer layers

In this paper, the performance of the buffer layer of Cadmium Telluride (CdTe) thin film solar cell was optimized using SCAPS software. At first, five different buffer layers including CdS, In2S3, ZnO, ZnSe and ZnS with variable thicknesses from 10 to 100 nm have been replaced in the structure of the solar cell and it has been observed. As the thickness of the buffer layer is increased, the eff...

Vertical heterostructure of two-dimensional MoS₂ and WSe₂ with vertically aligned layers.

Two-dimensional (2D) layered materials consist of covalently bonded 2D atomic layers stacked by van der Waals interactions. Such anisotropic bonding nature gives rise to the orientation-dependent functionalities of the 2D layered materials. Different from most studies of 2D materials with their atomic layers parallel to substrate, we have recently developed layer vertically aligned 2D material ...

Buffer-Related Degradation Aspects of Single and Double-Heterostructure Quantum Well InAlN/GaN High-Electron-Mobility Transistors

Institute of Electrical Engineering, Slovak Academy of Sciences, Dubravska Cesta 9, 84104 Bratislava, Slovakia Advanced Materials and Device Analysis Group, Institute for Microelectronics, Vienna University of Technology, Gusshausstr. 27-29, 1040 Vienna, Austria Alcatel-Thales III–V Lab, Route de Nozay, 91460 Marcoussis, France Institute of Condensed Matter Physics, Ecole Polytechnique Federale...