eprintid: 20008
rev_number: 15
userid: 2554
dir: disk0/00/02/00/08
datestamp: 2014-01-27 17:41:32
lastmod: 2019-01-27 06:15:02
status_changed: 2014-01-27 17:41:31
type: thesis_degree
succeeds: 20006
metadata_visibility: show
contact_email: RobinFSloan@gmail.com
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item_issues_id: duplicate_title_19711
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item_issues_description: Duplicate title to <span class="person_name">Sloan, Robin</span> <a href="http://d-scholarship.pitt.edu/cgi/users/home?screen=EPrint::View&amp;eprintid=19713"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.</xhtml:em></a> Master's Thesis, University of Pittsburgh.
item_issues_description: Duplicate title to <span class="person_name">Sloan, Robin</span> <a href="http://d-scholarship.pitt.edu/cgi/users/home?screen=EPrint::View&amp;eprintid=19711"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.</xhtml:em></a> Master's Thesis, University of Pittsburgh.
item_issues_description: Duplicate title to <span class="person_name">Sloan, Robin</span> <a href="http://d-scholarship.pitt.edu/cgi/users/home?screen=EPrint::View&amp;eprintid=19718"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.</xhtml:em></a> Master's Thesis, University of Pittsburgh.
item_issues_description: ETD 20008 is using versioning.
item_issues_description: Duplicate title to <span class="person_name">Sloan, Robin</span> <a href="http://d-scholarship.pitt.edu/cgi/users/home?screen=EPrint::View&amp;eprintid=20003"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.</xhtml:em></a> Master's Thesis, University of Pittsburgh.
item_issues_description: Duplicate title to <span class="person_name">Sloan, Robin</span> <a href="http://d-scholarship.pitt.edu/cgi/users/home?screen=EPrint::View&amp;eprintid=19719"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.</xhtml:em></a> Master's Thesis, University of Pittsburgh.
item_issues_description: Duplicate title to <span class="person_name">Sloan, Robin</span> <a href="http://d-scholarship.pitt.edu/cgi/users/home?screen=EPrint::View&amp;eprintid=20006"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.</xhtml:em></a> Master's Thesis, University of Pittsburgh.
item_issues_timestamp: 2013-08-22 06:20:39
item_issues_timestamp: 2013-08-23 06:19:41
item_issues_timestamp: 2013-08-23 06:19:41
item_issues_timestamp: 2013-09-11 17:54:57
item_issues_timestamp: 2013-11-15 07:21:53
item_issues_timestamp: 2013-11-16 07:20:55
item_issues_timestamp: 2013-11-16 07:20:55
item_issues_status: autoresolved
item_issues_status: autoresolved
item_issues_status: autoresolved
item_issues_status: discovered
item_issues_status: autoresolved
item_issues_status: autoresolved
item_issues_status: autoresolved
item_issues_count: 1
eprint_status: archive
creators_name: Sloan, Robin
creators_email: RFS20@pitt.edu
creators_id: RFS20
title: Lanthanide Sensitization in II-VI Semiconductor Nanoparticles
ispublished: unpub
divisions: sch_as_chemistry
full_text_status: public
keywords: Nanoparticles, doped nanoparticles, lanthanides, luminescent nanoparticle
abstract: As nanotechnology continues to find its way into medical treatments, it is important to understand how to develop a bright imaging agent that will be more robust than current organic fluorophores. Key characteristics of inorganic lanthanide based materials, which are superior to current organic reporters, are their resistance to photobleaching, narrow emission bands, and long luminescent lifetimes; however their small radiative rate requires that they be sensitized. There are also multiple lanthanides that emit in the visible and near infrared region, allowing multiplex assays to be developed. Based on a model proposed by Mukherjee, et al.,1 lanthanide emission is expected to show a dependence on the bandgap of the host nanoparticle material. The goal of this study was to examine this prediction. This study uses absorbance to determine the size and band gap of the host nanoparticles and uses XPS, EDS, and ICP to determine the dopant concentration. Using these measurements, the integrated time-gated luminescence is compared to the dopant percentage and bandgap of the nanoparticles. In agreement with the model, large bandgap materials are able to sensitize the terbium more efficiently, yielding brighter luminescence which is ideal for an imaging agent.
date: 2014-01-27
date_type: published
pages: 65
institution: University of Pittsburgh
refereed: TRUE
etdcommittee_type: committee_chair
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_name: Waldeck, David
etdcommittee_name: Saxena, Sunil
etdcommittee_name: Liu, Haitao
etdcommittee_email: dave@pitt.edu
etdcommittee_email: sksaxena@pitt.edu
etdcommittee_email: hliu@pitt.edu
etdcommittee_id: DAVE
etdcommittee_id: SKSAXENA
etdcommittee_id: HLIU
etd_defense_date: 2011-12-08
etd_approval_date: 2014-01-27
etd_submission_date: 2013-08-21
etd_release_date: 2014-01-27
etd_access_restriction: 5_year
etd_patent_pending: FALSE
thesis_type: thesis
degree: MS
citation:   Sloan, Robin  (2014) Lanthanide Sensitization in II-VI Semiconductor Nanoparticles.  Master's Thesis, University of Pittsburgh.    (Unpublished)  
document_url: http://d-scholarship-dev.library.pitt.edu/20008/1/Robin_Sloan_MS_Thesis_2013_1.pdf