Enhanced performance with bismuth ferrite perovskite in ZnO nanorod solid state solar cells

Journal article


Loh, L, Briscoe, J and Dunn, S (2014). Enhanced performance with bismuth ferrite perovskite in ZnO nanorod solid state solar cells. Nanoscale. 6 (12), pp. 7072-7078.
AuthorsLoh, L, Briscoe, J and Dunn, S
Abstract

This paper reports for the first time the use of perovskite bismuth ferrite (BiFeO3 or BFO) on ZnO-based solid state solar cells using only chemical solution methods for materials synthesis. As ZnO has poor chemical stability in acidic and corrosive environments, a buffer method using aminosilane ((3-aminopropyltriethoxysilane or H2N(CH2)3Si(OC2H5)3)) coating was used to provide a protective coating on the ZnO nanorods. The aminosilane layer was removed after BFO coating. The solid state solar cells, sensitized by N719, used CuSCN as the hole conductor and were tested under 100 mW cm−2, AM 1.5G simulated sunlight. The photovoltaic performance showed current density improvement from 0.64 mA cm−2 to 1.4 mA cm−2 and efficiencies from 0.1% to 0.38% when comparing between ZnO and ZnO/BFO solar cells. The observed ca. 400% improved performance is shown to result from BFO's role as an electron blocking layer.

Year2014
JournalNanoscale
Journal citation6 (12), pp. 7072-7078
PublisherRoyal Society of Chemistry
Digital Object Identifier (DOI)doi:10.1039/c4nr00911h
Publication dates
Print20 May 2014
Publication process dates
Deposited16 Jan 2019
Accepted01 Apr 2014
Accepted author manuscript
License
CC BY 4.0
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https://openresearch.lsbu.ac.uk/item/8782v

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