Alexandria Digital Research Library

Experimental and Computational Investigations of Organic and Hybrid Solar Cells

Author:
Eisenmenger, Nancy D.
Degree Grantor:
University of California, Santa Barbara. Materials
Degree Supervisor:
Michael L. Chabinyc
Place of Publication:
[Santa Barbara, Calif.]
Publisher:
University of California, Santa Barbara
Creation Date:
2014
Issued Date:
2014
Topics:
Engineering, Materials Science
Keywords:
Kinetic Monte Carlo
Dye sensitized solar cells
Organic solar cells
Bulk heterojunction solar cells
Organic photovoltaics
Dynamic Monte Carlo
Genres:
Dissertations, Academic and Online resources
Dissertation:
Ph.D.--University of California, Santa Barbara, 2014
Description:

Organic and hybrid solar cells are complex, nanostructured devices, for which an in-depth understanding is required to improve and optimize. Both types of solar cells take advantage of the strong optical absorption of organic chromophores to collect sunlight and have reached maximum efficiencies of around 12% as of the end of 2014. They both also rely on nanostructures and interfaces to balance energy and charge transport. Despite these underlying similarities, organic solar cells and dye sensitized solar cells present different challenges to optimization. We have applied experimental and computational techniques to help explore and understand factors that affect their efficiencies and describe and predict strategies for improving them. We made a comparative study of two isostructural donor molecules and studied the exciton and charge transport in a non-fullerene acceptor molecule in bulk heterojunction organic solar cells. We then wrote a kinetic Monte Carlo simulation to study energy transfer in donor-acceptor systems and applied it to study trapping kinetics in different morphologies, energy relay dyes in dye sensitized solar cells, and energy cascades in bilayer organic solar cells. Based on these simulations, we offer design suggestions for both types of solar cells.

Physical Description:
1 online resource (232 pages)
Format:
Text
Collection(s):
UCSB electronic theses and dissertations
ARK:
ark:/48907/f3qz283c
ISBN:
9781321567700
Catalog System Number:
990045118180203776
Rights:
Inc.icon only.dark In Copyright
Copyright Holder:
Nancy Eisenmenger
File Description
Access: Public access
Eisenmenger_ucsb_0035D_12403.pdf pdf (Portable Document Format)