Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells

Thumbnail image of item number 1 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Thumbnail image of item number 2 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Thumbnail image of item number 3 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Thumbnail image of item number 4 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Showing 1-4 of 93 pages in this thesis.

PDF Version Also Available for Download.

Description

The details of dye sensitized solar cells was explained and phenothiazine and porphyrin based dyes were synthesized for use in DSSCs. DSSCs offer a unique and cost effective method of renewable energy. DSSCs are characterized through various tests, with the overall efficiency, η, bearing the greatest importance. Incident photon to current conversion efficiency, or IPCE, is also another important characterization of DSSCs. Effect of positioning of the cyanoacrylic acid anchoring group on ring periphery of phenothiazine dye on the performance of dye sensitized solar cells (DSSCs) is reported. The performances of the cells are found to be prominent for solar … continued below

Creation Information

Hart, Aaron S. December 2013.

Context

This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided by the UNT Libraries to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 909 times, with 5 in the last month. More information about this thesis can be viewed below.

Who

People and organizations associated with either the creation of this thesis or its content.

Author

Chairs

Publisher

Rights Holder

For guidance see Citations, Rights, Re-Use.

  • Hart, Aaron S.

Provided By

UNT Libraries

The UNT Libraries serve the university and community by providing access to physical and online collections, fostering information literacy, supporting academic research, and much, much more.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this thesis. Follow the links below to find similar items on the Digital Library.

Degree Information

Description

The details of dye sensitized solar cells was explained and phenothiazine and porphyrin based dyes were synthesized for use in DSSCs. DSSCs offer a unique and cost effective method of renewable energy. DSSCs are characterized through various tests, with the overall efficiency, η, bearing the greatest importance. Incident photon to current conversion efficiency, or IPCE, is also another important characterization of DSSCs. Effect of positioning of the cyanoacrylic acid anchoring group on ring periphery of phenothiazine dye on the performance of dye sensitized solar cells (DSSCs) is reported. The performances of the cells are found to be prominent for solar cells made out of Type-1 dyes compared to Type-2 dyes. This trend has been rationalized based on spectral, electrochemical, computational and electrochemical impedance spectroscopy results. Free-base and zinc porphyrins bearing a carboxyl anchoring group at the para, meta, or ortho positions of one of the meso-phenyl rings were synthesized for DSSCs. Photoelectrochemical studies were performed after immobilization of porphyrins onto nanocrystalline TiO2. The performance of DSSCs with the porphyrin anchoring at the para or meta position were found to greatly exceed those in the ortho position. Additionally, zinc porphyrin derivatives outperformed the free-base porphyrin analogs, including better dye regeneration efficiency for the zinc porphyrin derivatives and for the meta and para derivatives through electrochemical impedance spectroscopy studies. The overall structure-performance trends observed for the present porphyrin DSSCs have been rationalized based on spectral, electrochemical, electrochemical impedance spectroscopy and transient spectroscopy results.

Language

Item Type

Identifier

Unique identifying numbers for this thesis in the Digital Library or other systems.

Collections

This thesis is part of the following collection of related materials.

UNT Theses and Dissertations

Theses and dissertations represent a wealth of scholarly and artistic content created by masters and doctoral students in the degree-seeking process. Some ETDs in this collection are restricted to use by the UNT community.

About | Browse this Collection

What responsibilities do I have when using this thesis?

Digital Files

When

Dates and time periods associated with this thesis.

Creation Date

  • December 2013

Added to The UNT Digital Library

  • Nov. 8, 2014, 11:56 a.m.

Description Last Updated

  • April 28, 2020, 1 p.m.

Usage Statistics

When was this thesis last used?

Yesterday: 0
Past 30 days: 5
Total Uses: 909
More Statistics

Interact With This Thesis

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Thumbnail image of item number 2 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Thumbnail image of item number 3 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.
Thumbnail image of item number 4 in: 'Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Hart, Aaron S. Substitution Effects of Phenothiazine and Porphyrin Dyes in Dye-sensitized Solar Cells, thesis, December 2013; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc407837/: accessed May 26, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .

Back to Top of Screen