Keywords and Phrases
Laser-raster reduction; Photothermal; Graphene oxide; Copper nanoparticles
"Fabrication and printing of nanoparticles is an essential step in the manufacturing of low cost- high efficiency electronic devices. High material costs of noble metal particles necessitates the investigation for a potential substituent. Conventional methods of manufacturing are time consuming and uneconomical, thus intense research is being done to employ new methods for cost, time and space effective manufacturing process.
The first part of the thesis presents the fabrication of Copper nanoparticles. As an economical substituent for noble metal nanoparticles, Copper nanoparticles satisfy various properties as conductive inks, simultaneously suffering from the vital problem of oxidation. The acceleration effects of GO on photothermal laser-raster reduction of CuO nanoparticles are reported for the first time ever in this study. Transient emission studies revealed the dynamics of the reduction and the relationship between the emission signal and degree of reactions thereby providing novel approaches to detect and control thermal processing.
The second part of the thesis focuses on establishing and characterizing a direct write Aerosol jet printing system. A number of process parameters influence the deposition phenomenon, they are flow rate of carrier gas, stage speed, and distance of deposition head from substrate and nature of the substrate. In this study, the effect of these parameters on the deposition of ink is observed. The study provides an operability window and locates the regime for printing of thin silver lines in one pass"--Abstract, page iv.
Liou, Frank W.
Kinzel, Edward C.
Mechanical and Aerospace Engineering
M.S. in Mechanical Engineering
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- Photothermal laser-raster reduction of copper oxide by graphene oxide
x, 45 pages
© 2016 Mahati Guntupalli, All rights reserved.
Thesis - Open Access
Electronic OCLC #
Guntupalli, Mahati, "Laser sintering and aerosol printing of conductive nanoparticles" (2016). Masters Theses. 7852.