Show simple item record

dc.contributor.advisorMarc A. Kastner.en_US
dc.contributor.authorToyama, Fumiaki, 1977-en_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Physics.en_US
dc.date.accessioned2005-09-27T17:31:48Z
dc.date.available2005-09-27T17:31:48Z
dc.date.copyright2004en_US
dc.date.issued2004en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/28653
dc.descriptionThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.en_US
dc.descriptionIncludes bibliographical references (p. 51-53).en_US
dc.description.abstractWe present results for optical measurements on charged CdSe nanocrystals. The injection of electrons into quantum confined states is confirmed by monitoring changes in the visible and infrared absorption spectra. Interestingly, the response is observed only in the nanocrystals that have been chemically treated with sodium biphenyl. Bleaching of the visible interband transition is observed upon electron injection into the nanocrystal films. It is expect that, with injected electrons in the 1S[e] state, more electrons are available to undergo the intraband transition and absorb more light in infrared region. However, the opposite effect is observed. The energy and cross section of the infrared absorption are consistent with a one-electron transition between the 1S[e] and 1P[e] states confined in the quantum dots.en_US
dc.description.statementofresponsibilityby Fumiaki Toyama.en_US
dc.format.extent53 p.en_US
dc.format.extent1539142 bytes
dc.format.extent1543513 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.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.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582
dc.subjectPhysics.en_US
dc.titleInterband and intraband optical studies of CdSe colloidal nanocrystal filmsen_US
dc.typeThesisen_US
dc.description.degreeS.M.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Dept. of Physics.en_US
dc.identifier.oclc58965956en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record