eprintid: 19913
rev_number: 8
userid: 202
dir: disk0/00/01/99/13
datestamp: 2013-10-18 18:37:28
lastmod: 2016-11-15 14:15:34
status_changed: 2013-10-18 18:37:28
type: thesis_degree
metadata_visibility: show
contact_email: ndpeter@gmail.com
item_issues_count: 0
eprint_status: archive
creators_name: Bell, Peter
creators_email: ndpeter@gmail.com
title: SYNTHESIS OF p-PHENYLENE VINYLENE DENDRONS & THEIR
FUNCTIONALIZATION AND TESTING IN DYE-SENSITIZED SOLAR CELLS
ispublished: unpub
divisions: sch_as_chemistry
full_text_status: public
keywords: Phenylene Vinylene Dendrimers, Dye-Sentized Solar Cells, Linear Conjunction, Conjugated Dedrimers, Light-harvesting
abstract: The novel synthesis of p-phenylene vinylene dendrons utilizing a Horner-Wadsworth-Emmons based approach is described. The extended, linear π conjugation along all the dendron branches, a feature absent in most dendrimers used for light harvesting, was expected to lead to an efficient light-harvesting system by acting as a dendritic molecular wire between peripheral donor chromophores and a core acceptor. To that end, nickel porphyrins were added to the
periphery of the dendrons as preparation for inclusion in dye-sensitized solar cells. The prepared dendron-porphyrin conjugates proved to be poor dyes. This disappointing result is attributed to the use of nickel porphyrins which were found to undergo non-radiative decay, making them
unsuitable for light-harvesting applications. Changes to the system are proposed, from replacing the nickel with zinc within the porphyrins to the use of alternative chromophores, to better test the dendrons function as molecular wires.
date: 2013-10-18
date_type: published
pages: 260
institution: University of Pittsburgh
refereed: TRUE
etdcommittee_type: committee_chair
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_name: Chapman, Toby
etdcommittee_name: Waldeck, David
etdcommittee_name: Meyer, Tara
etdcommittee_name: Lee, Jung-Kun
etdcommittee_email: tchapman@pitt.edu
etdcommittee_email: dave@pitt.edu
etdcommittee_email: tmeyer@pitt.edu
etdcommittee_email: jul37@pitt.edu
etdcommittee_id: TCHAPMAN
etdcommittee_id: DAVE
etdcommittee_id: TMEYER
etdcommittee_id: JUL37
etd_defense_date: 2013-05-03
etd_approval_date: 2013-10-18
etd_submission_date: 2013-10-18
etd_release_date: 2013-10-18
etd_access_restriction: immediate
etd_patent_pending: FALSE
thesis_type: dissertation
degree: PhD
citation:   Bell, Peter  (2013) SYNTHESIS OF p-PHENYLENE VINYLENE DENDRONS & THEIR FUNCTIONALIZATION AND TESTING IN DYE-SENSITIZED SOLAR CELLS.  Doctoral Dissertation, University of Pittsburgh.    (Unpublished)  
document_url: http://d-scholarship-dev.library.pitt.edu/19913/1/P_Bell_-_Final_linked.pdf