Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Optical and Structural Properties of CuxS Quantum Dots Concerning H2O/Ethanol Solvent Ratio
KTH, School of Engineering Sciences (SCI).
2013 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Nanotechnology, one of the most interesting sciences today will no doubt have an enourmous impact on tomorrow's society and industry. One of the most interesting nanomaterial that has been discovered is the semiconductor quantum dot (QD). This material shows interesting novel properties such as a size-dependent band gap, which is an effect caused by the quantum confinement effect in all three dimensions. Due to this phenomenon the absorption spectrum can be tuned to the desired value by adjusting the size of the QD.

This thesis aims to investigate how the solvent ratio of H2O/Ethanol affects the optical and structural properties of copper sulfide QDs manufactured in a chemical synthesis way using modern microwave heating. The process of manufacturing QDs using chemical synthesis often involve a capping-agent to prevent the QDs from agglomerate into bigger structures. In this case one of the most common amino acids will be used and briefly investigated.

Due to the small size the characteristics of nanomaterials must be investigated with sophisticated instruments and the QD is not an exception. In this work, the transmission electron microscope (TEM), powder X-ray diffraction (XRD) and ultraviolet-visible (UV-vis) spectroscope are utilized to determine the size and stoichiometrics of the particles made in the synthesis.

Place, publisher, year, edition, pages
2013. , 22 p.
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-154249OAI: oai:DiVA.org:kth-154249DiVA: diva2:756167
Educational program
Master of Science in Engineering -Engineering Physics
Supervisors
Available from: 2014-10-16 Created: 2014-10-16 Last updated: 2014-10-16Bibliographically approved

Open Access in DiVA

Niklas Larson kandidatexam(3765 kB)818 downloads
File information
File name FULLTEXT01.pdfFile size 3765 kBChecksum SHA-512
809c020e26ba5ca515756b8f9c3ba440de50ce48e3ab8cede3591603a7dd93c8f1720fec1c5e3f69f98cb9197f7e706fe5ed0f5fb0666032eda8b97c3d050fa4
Type fulltextMimetype application/pdf

By organisation
School of Engineering Sciences (SCI)
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 818 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 168 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf