Essays about: "Si3N4"

Showing result 1 - 5 of 7 essays containing the word Si3N4.

1. 1. Enhancing Sensing in Nanoscale: Investigation of Smart Nanomechanical Cantilever Array

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Hiruy Michael Weldegiorgish; [2022]
   Keywords : Cantilever; AFM; Biosensor; Piezoresistive sensor; Piezoelectric actuator; Kantilever; AFM; Biosensor; Piezo -resistorer; Piezo-elektiska pådrivare;

   Abstract : In this report, a novel smart nanocantilever with self-deflection sensor using embedded piezo-resistor and self-actuation using integrated piezo-electric actuator is proposed, designed and simulated to enable highly sensitive label free biosensor and ultra-short cantilever probe for AFM applications. The smart nanocantilever comprises of a triangular Si3N4 nanocantilever (10µm long, 400nm width and 100nm thickness) connected to a multi-layer support structure (Si3N4 (100nm)/PZT (100nm)) having n-type silicon piezo resistor (7µm long ,2µm width and 20nm thickness) embedded in the Si3N4 layer in both the support structure and nanocantilever. READ MORE

3. 2. A study of the photochromic effect in oxygen containing rare-earth metal hydride thin films and multilayer structures

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : Sigurbjörn Már Aðalsteinsson; [2020]
   Keywords : ;

   Abstract : In this work, we have studied the photochromic response of several oxygen containing rare-earth hydride thin films (REHO, RE = Y, Nd, Gd, and Dy). Their chemical composition was characterized by an iterative multi-method approach based on ion beams, while the photochromic effect was measured by means of optical spectrometry. READ MORE

4. 3. GaSb nanowire transistors with process induced strain

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

   Author : Edvin Winqvist; [2017]
   Keywords : GaSb; gallium; antimonide; nanowire; transistor; strain; physics; thesis; Physics and Astronomy;

   Abstract : With the constant downscaling of Si transistors reaching its limits, other alternatives have been actively researched the past decades. Group III-V semiconductors are excellent materials with generally high carrier mobilities that can replace Si in transistors. READ MORE

5. 4. Heat transport in nano materials subject to high intensity nano focused X-rays

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

   Author : Harald Wallander; [2016]
   Keywords : x-rays; nanowire; nanomaterial; InP; synchrotron; nanomax; nanofocus; heat transport; COMSOL; heating; Physics and Astronomy;

   Abstract : The thesis aims to investigate the amount and distribution of heat in nano materials irradiated by highly focused X-ray beams, like those that will be produced by MAX IV. The beam used in the study had a flux of 10e11 photons per second and a diameter of 100 nm. READ MORE

6. 5. IR optical properties in thin films of diamond

   University essay from Institutionen för teknikvetenskaper

   Author : Anna Petersson; [2011]
   Keywords : diamond; thin films;

   Abstract : In the past decades new interest in diamond and possible applications of diamond has emerged. In this master thesis, optical properties of thin films of diamond were investigated for the possible use as an Internal Reflection Element (IRE) in Attenuated Total Reflection Fourier Infra Red (ATR-FTIR) spectroscopy. READ MORE