First Advisor

Carl C. Wamser

Term of Graduation

Summer 2008

Date of Publication


Document Type


Degree Name

Doctor of Philosophy (Ph.D.) in Chemistry






Conducting polymers, Dye-sensitized solar cells, Optoelectronic devices -- Design and construction, Porphyrins, Academic theses



Physical Description

1 online resource (2, x, 139 pages)


Conductive nanostructured films of poly-tetrakis-5,10,15,20-(4-aminophenyl)porphyrin (TAPP) can be grown electrochemically or through interfacial oxidative polymerization. The poly-TAPP nanomorphology is sensitive to the electrochemical solvent, potentiometric method, and the aminophenyl porphyrin monomer utilized. To elucidate the molecular structure of poly-TAPP and to correlate structures with proposed polymerization and conductivity mechanisms, reflectance FT-IR and spectroelectrochemistry were used to detect the presence and electroactivity of dihydrophenazine and phenazine polymer linkages formed during the polymerization.

Poly-TAPP nanofiber films were evaluated for use in a bulk heterojunction solar cell (with PCBM) and in an inverse dye-sensitized TiO2 solar cell using the poly-TAPP nanoporous scaffold to control the interfacial contact region between donor (poly-TAPP) and acceptor (PCBM or TiO2) phases. Poly-TAPP/PCBM cells exhibited short-circuit current densities of 140 μA/cm 2 and open-circuit potential values up to 500 mV under simulated full-sun illumination. An inverse dye-sensitized solar cell was developed by incorporating TiO2 into a dye-coated nanoporous poly-TAPP electrode. These cells demonstrated short-circuit current densities up to 46 μA/cm 2 and open-circuit potential values of 232 mV under AM 1.5 solar illumination.


In Copyright. URI:

Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).


Click the upload file at the bottom of the page.If you are the rightful copyright holder of this dissertation or thesis and wish to have it removed from the Open Access Collection, please submit a request to and include clear identification of the work, preferably with URL.

Persistent Identifier

Included in

Chemistry Commons