eprintid: 19610
rev_number: 15
userid: 2401
dir: disk0/00/01/96/10
datestamp: 2013-09-27 00:29:29
lastmod: 2016-11-15 14:14:51
status_changed: 2013-09-27 00:29:29
type: thesis_degree
metadata_visibility: show
contact_email: sowens@me.com
item_issues_count: 0
eprint_status: archive
creators_name: Owens, Steven G.
creators_email: sgo7@pitt.edu
creators_id: SGO7
title: EXPLORATION OF THIOPHENE-BASED DONOR-DONOR AND DONOR-ACCEPTOR CONJUGATED OLIGOMERS
ispublished: unpub
divisions: sch_as_chemistry
full_text_status: public
keywords: thiophene D-A D-D "donor-acceptor" "donor-donor" "conjugated oligomer" "electronic materials" OPV PSC "organic photovoltaic" "polymer solar cell"
abstract: Conjugated polymers are one of the leading technologies in electronic materials research. In this work we investigate thiophene-based donor-donor (D-D) and donor-acceptor (D-A) conjugated oligomers for future application towards polymer solar cells (PSCs).
Beginning from computational studies, our group targets specific monomers that show promise in both bandgap and solar cell efficiency. For this research, we have found a novel alkyl-nitrothiophene (2-bromo-5-cyano-3-hexyl-4-nitrothiophene, NT) monomer as well as a unique D-D combination of propylenedioxythiophene (ProDOT) and isothianapthene (ITN). In both of these cases, we found that we can tune the tetramer bandgap (in both D-D and D-A systems) simply by changing the order of monomers (rather than changing the identity of the monomers). Horner-Wadsworth-Emmons (HWE) was chosen to provide the ability to individually couple monomers, allowing us to synthesize sequenced oligomers.
The synthesis of the novel alkyl-NT monomer was successful and progress towards additional monomers necessary for HWE coupling was made. A test Stille coupling towards the synthesis of the ProDOT-ITN oligomer was also attempted.
date: 2013-09-26
date_type: published
pages: 34
institution: University of Pittsburgh
refereed: TRUE
etdcommittee_type: committee_chair
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_name: Hutchison, Geoffrey R.
etdcommittee_name: Meyer, Tara Y.
etdcommittee_name: Millstone, Jill
etdcommittee_email: geoffh@pitt.edu
etdcommittee_email: tmeyer@pitt.edu
etdcommittee_email: jem210@pitt.edu
etdcommittee_id: GEOFFH
etdcommittee_id: TMEYER
etdcommittee_id: JEM210
etd_defense_date: 2013-08-12
etd_approval_date: 2013-09-26
etd_submission_date: 2013-08-15
etd_release_date: 2013-09-26
etd_access_restriction: 1_year
etd_patent_pending: FALSE
thesis_type: thesis
degree: MS
citation:   Owens, Steven G.  (2013) EXPLORATION OF THIOPHENE-BASED DONOR-DONOR AND DONOR-ACCEPTOR CONJUGATED OLIGOMERS.  Master's Thesis, University of Pittsburgh.    (Unpublished)  
document_url: http://d-scholarship-dev.library.pitt.edu/19610/1/SGO_MS_Thesis.pdf