• Login
    View Item 
    •   Home
    • Student Research & Publications
    • NSF Research Experiences for Undergraduates
    • 2011 NSF Research Experiences for Undergraduates posters and presentations
    • View Item
    •   Home
    • Student Research & Publications
    • NSF Research Experiences for Undergraduates
    • 2011 NSF Research Experiences for Undergraduates posters and presentations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Mines RepositoryCommunitiesPublication DateAuthorsTitlesSubjectsThis CollectionPublication DateAuthorsTitlesSubjects

    My Account

    Login

    Mines Links

    Arthur Lakes LibraryColorado School of Mines

    Statistics

    Display Statistics

    NMR analysis of passivated silicon quantum dots

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    remrsec-Poster-2011-REU-BLAIRE ...
    Size:
    3.043Mb
    Format:
    PDF
    Description:
    NMR analysis of passivated silicon ...
    Download
    Author
    Sorenson, Blaire
    Yang, Yongan
    Cheng, Jifang
    Williams, S. Kim R.
    Date
    2011-08
    Keywords
    REMRSEC
    
    Metadata
    Show full item record
    URI
    https://hdl.handle.net/11124/391; http://dx.doi.org/10.25676/11124/391
    Abstract
    The increased demand for energy calls for the development of new approaches towards renewable energy sources. Solar energy is one of the most abundant energy resources that can be converted to thermal, chemical and electrical energy. The demand to increase solar energy production to the terra watt level motivated our project, and our research focused on better efficiency of photovoltaics. Silicon is the most developed semi-conductor in the world and because it has been well studied, techniques to manipulate and control its properties have been well established. Plasma enhanced chemical vapor deposition was employed as our method of synthesis. Passivation using chemistries containing alkyl chains promote Si-C bonds close to the surface area. Functionalizing these quantum dots will prevent the unwanted oxide layer and also decrease electron hole recombination rates. Nuclear Magnetic Resonance (NMR)- 1H and 13C - was utilized as a characterization tool to quantify and determine the degree of passivation of the synthesized quantum dots. Passivated samples were subjected to proton and carbon experiments to obtain structural information of the product. The obtained spectras show passivation of the desired ligand occurred with minimal impurities and contamination. Conductivity and photoluminescence results will also be correlated with the NMR data.
    Rights
    Copyright of the original work is retained by the author.
    Collections
    2011 NSF Research Experiences for Undergraduates posters and presentations

    entitlement

     
    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.