Sökning: "Copper nanoparticles"

Visar resultat 11 - 13 av 13 uppsatser innehållade orden Copper nanoparticles.

1. 11. Optical Properties of Silica-Copper Oxide Thin Films Prepared by Spin Coating

   Kandidat-uppsats, Tillämpad optik

   Författare :Niklas Mårtensson; [2011]
   Nyckelord :ellipsometry; solar selective absorber; spin coating; thin films; copper oxide nanoparticles; optical modeling; sol-gel;

   Sammanfattning : Optical properties of copper oxide nanoparticles in a silica matrix thin film have been investigated. Films were prepared on Si substrates from a sol-gel by spin coating. Four samples with different thicknesses, from 14,5-109 nm, were fabricated. Optical properties were measured with Variable Angle Spectroscopic Ellipsometry. LÄS MER

3. 12. Experimental studies of nucleation and growth of nanoparticles using a pulsed hollow cathode discharge

   Master-uppsats, KTH/Rymd- och plasmafysik

   Författare :Asparuh Stanev; [2011]
   Nyckelord :;

   Sammanfattning : The properties of the nanoparticles are highly eected by their size. In order to apply nanoparticles commercially it is desirable to synthesize them with a narrow size distribution and at high productivity. We synthesized copper nanoparticles (grains) using a plasma generated by a hollow cathode with a pulsed voltage. LÄS MER

4. 13. SBA-15 SiOx as Mesoreactor for Copper Nanoparticles

   Master-uppsats, Nanostrukturerade material; Institutionen för fysik, kemi och biologi

   Författare :Hao-Tso Tsai; [2009]
   Nyckelord :Copper nanoparticles; mesoporous silica; mesoreactor; SBA-15;

   Sammanfattning : The work presented in this thesis has been focus on developing the idea of mesoreactor based on mesoporous silica SBA-15. SBA-15 is a mesoporous material with highly ordered pore structure and tailorable pore sizes with narrow sizes distribution. LÄS MER