Sökning: "Ga doped ZnO"

Hittade 2 uppsatser innehållade orden Ga doped ZnO.

1. 1. Investigation on a change in response direction of Ga doped ZnO nanoparticles resistive sensors on exposure to NO

   Master-uppsats, Institutionen för fysik, kemi och biologi; Tekniska högskolan

   Författare :Chang Che Tsung; [2012]
   Nyckelord :ZnO; Ga doped ZnO; nanoparticles; gas sensors; NO; work function; Kelvin probe;

   Sammanfattning : Semiconductor-based gas sensors have been used for a wide range of applications over the last few decades. In this thesis, sensing properties of pure ZnO and Ga doped ZnO are investigated. There are three types of tested gas species, H2, O2 and NO, and three test temperatures, 300oC, 400oC and 500oC. LÄS MER

3. 2. ZnO nanoparticles : synthesis of Ga-doped ZnO, oxygen gas sensing and quantum chemical investigation

   Magister-uppsats, Institutionen för fysik, kemi och biologi

   Författare :Alexander Hagelin; [2011]
   Nyckelord :ZnO zinc oxide gallium Ga doped indium In O2 oxygen gas sensing quantum chemical quantum chemistry computational chemistry synthesis combustion EDOC electrochemistry wet chemical XRD SEM DOS HOMO LUMO nitrogen dioxide NO2 response Langmuir;

   Sammanfattning : Doped ZnO nanoparticles were synthesized by three different methods – electrochemical deposition under oxidizing conditions (EDOC) , combustion method and wet chemical synthesis – for investigating the oxygen gas sensing response. Ga-doped ZnO was mostly synthesized but also In-doped ZnO was made. LÄS MER