Loading...
Low-temperature carbon-based counter electrodes for hole transport free perovskite solar cells fabricated in ambient conditions
Onwubiko, Iheanyi
Onwubiko, Iheanyi
Citations
Altmetric:
Files
Loading...
Thesis
Adobe PDF, 1.97 MB
Authors
Other Names
Location
Time Period
Advisors
Original Date
Digitization Date
Issue Date
2017-05
Type
Thesis
Genre
Keywords
Subjects (LCSH)
Electronic dissertation
Electronic dissertations
Electronic dissertations
Citation
Abstract
Perovskite solar cells are the much talked about and researched devices in the
photovoltaic community. Most high-efficiency solar cells are prepared using an expensive hole
transport layer which is unstable in ambient atmosphere, and an energy consuming method of
depositing the cathode to complete the cell. Herein, following recommendations from literature,
carbon-based nanomaterials are utilized in the fabrication of Perovskite solar cells, and its effects
on the efficiency, fill factor, open circuit voltage, short circuit density, and hysteresis is analyzed.
The Perovskite solar cells and carbon counter electrodes fabricated at low temperature (~100
degrees Celsius) and in room temperature conditions. Multi-walled carbon nanotubes based
devices exhibited an efficiency of ~7%. This endeavor further buttresses the fact that carbon
nanomaterials - especially MWCNTs are promising candidates for the future of low cost, high
performance and scalable production of Perovskite solar cells. Thus, expensive hole transport
materials and complex vacuum deposition of cathodes to complete the cells might be eliminated.
The difference factors of average efficiencies from the different scan directions appear to show
that hysteresis effect is minimal in the MWCNT based devices.
Table of Contents
Description
Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering
Publisher
Wichita State University
Journal
Book Title
Series
Digital Collection
Finding Aid URL
Use and Reproduction
Copyright 2017 by Iheanyi Onwubiko
All Rights Reserved