The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, we introduce a sample preparation technique for two-dimensional (2D) dopant concentration profiling in silicon based devices. Selective chemical etching will be shown in a series of tunneling field-effect transistors (FETs). It is experimentally proven that this method offers a high success rate and provides a simple route to Transmission Electron Microscopy (TEM) study of 2D dopant...
Solar cells consisting of extremely uniform and ordered large-area arrays of silicon micropillars are fabricated using metal-assisted chemical etching. Micropillar diameter, pitch, height, and core-shell doping profiles are optimized for light trapping and carrier collection.
A semiconductor laser with active layer consisting of a patterned quantum dot lattice demonstrates evidence of miniband formation resulting from inter-dot coupling. Excited state lasing is thought to result from a phonon bottleneck-like effect.
We report a top-down fabrication method that involves the combination of superionic-solid-state-stamping (S4) patterning with metal-assisted-chemical-etching (MacEtch), to produce silicon nanowire arrays with defined geometry and optical properties in a manufacturable fashion.
This study demonstrates the use of electronically coupled patterned quantum dots (QDs) fabricated using a wet-etching technique as the gain medium of a photonic device. This technique provides the unique ability to control both the spatial and spectral properties of QDs, while maintaining the high optical quality of the material necessary for photonics applications.
High aspect ratio (< 30:1) ferroelectric structures have potential applications in areas such as tunable photonic crystals, biosensors and miniaturized transducers. Mechanically unconstrained and free standing Pb(Zr0.52,Ti0.48)O3 (PZT) tubes (1??2 microns in diameter) were processed with pre-patterned porous silicon templates using a Liquid Source Misted Chemical Deposition (LSMCD) technique. After...
We investigated the effects of the etching processes using bromine and nitric-phosphoric acid solutions, as well as of Cu, in the bulk electrical conductivity of CdTe/CdS solar cells using conductive atomic force microscopy (C-AFM). Although the etching process can create a conductive layer on the surface of the CdTe, the layer is very shallow. In contrast, the addition of a thin layer of Cu to the...
This paper presents the design, fabrication and characterisation of a high performance 4H-SiC normally-off, trenched and implanted vertical junction field-effect transistor (VJFET). Devices with different trenched mesa widths were designed and their performance investigated. The fabricated VJFETs demonstrated a 3.9Omega resistance at VG=5 V (with negligible gate current) and JD=154 A/cm2, corresponding...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.