Enhanced performance with bismuth ferrite perovskite in ZnO nanorod solid state solar cells
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.
|Authors||Loh, L, Briscoe, J and Dunn, S|
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.
|Journal citation||6 (12), pp. 7072-7078|
|Publisher||Royal Society of Chemistry|
|Digital Object Identifier (DOI)||doi:10.1039/c4nr00911h|
|20 May 2014|
|Publication process dates|
|Deposited||16 Jan 2019|
|Accepted||01 Apr 2014|
|Accepted author manuscript|
Enhanced Performance with Heterogeneous Structured Bismuth Ferrite-ZnO Nanorod Array Solid State Solar Cell.docx
CC BY 4.0
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