Fabrication and Characterization of Planar-Structure Perovskite Solar Cells

Author

Guoduan Liu, University of KentuckyFollow

Date Available

4-26-2019

Year of Publication

2019

Degree Name

Master of Science in Electrical Engineering (MSEE)

Document Type

Master's Thesis

College

Engineering

Department/School/Program

Electrical and Computer Engineering

First Advisor

Dr. Zhi David Chen

Abstract

Currently organic-inorganic hybrid perovskite solar cells (PSCs) is one kind of promising photovoltaic technology due to low production cost, easy fabrication method and high power conversion efficiency.

Charge transport layers are found to be critical for device performance and stability. A traditional electron transport layer (ETL), such as TiO₂ (Titanium dioxide), is not very efficient for charge extraction at the interface. Compared with TiO₂, SnO₂ (Tin (IV) Oxide) possesses several advantages such as higher mobility and better energy level alignment. In addition, PSCs with planar structure can be processed at lower temperature compared to PSCs with other structures.

In this thesis, planar-structure perovskite solar cells with SnO₂ as the electron transport layer are fabricated. The one-step spin-coating method is employed for the fabrication. Several issues are studied such as annealing the samples in ambient air or glovebox, different concentration of solution used for the samples, the impact of using filter for solutions on samples. Finally, a reproducible fabrication procedure for planer-structure perovskite solar cells with an average power conversion efficiency of 16.8%, and a maximum power conversion efficiency of 18.1% is provided.

Digital Object Identifier (DOI)

https://doi.org/10.13023/etd.2019.140

Recommended Citation

Liu, Guoduan, "Fabrication and Characterization of Planar-Structure Perovskite Solar Cells" (2019). Theses and Dissertations--Electrical and Computer Engineering. 137.
https://uknowledge.uky.edu/ece_etds/137