Synthesis, characterization, and biotemplated assembly of indium nitride and indium gallium nitride nanoparticles

A low-temperature, ambient pressure solution synthesis of colloidal InN nanoparticles is presented. This synthesis utilizes a previously dismissed precursor and results in individual, non-aggregated nanoparticles with long-term solubility and stability in organic solvents. These nanoparticles are wurtzite phase with a measured bandgap as low as 0.79 eV and average size of 6.2 nm. Based on this synthesis, indium-rich InGaN nanoparticles were synthesized and characterized. Chemical, structural, and optical analysis indicated up to 10% gallium incorporation before encountering the miscibility gap. Using CdSe nanoparticles as a model system, M13 bacteriophage-mediated, two-dimensional nanoparticle assembly was examined as a route for scaleable, large-area nanoparticle films. The method uses close-packed, self-assembly of M13 on layer-by-layer deposited polyelectrolyte surfaces and was able to assemble aminated nanoparticles with strong specificity.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Materials Science and Engineering.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2010

Author dc:creator

• Hsieh, Jennifer Chia-Jen

Advisor dc:contributor.advisor

• Angela M. Belcher.

• Materials Science and Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/59706

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/59706