Issue 42, 2019

Flame assisted chemical vapour deposition NiO hole transport layers for mesoporous carbon perovskite cells

Abstract

Flame assisted chemical vapour deposition was utilised to directly deposit polycrystalline mesoporous NiO to enhance charge transport within carbon perovskite solar cells (C-PSC). This versatile technique is highly suited for deposition of large area thin films along with the ability to use simple, stable aqueous salts. The combination of low cost methods of screen printing and FACVD to produce the C-PSC make this an attractive route towards commercialisation. The effects of deposition parameters on the morphology, crystallinity and density of the deposited NiO are discussed, along with the importance of use of a low propane, ‘lean flame’ on both the NiO and underlying F-doped tin oxide electrode. The thickness of the NiO layer was found to be critical in optimising the C-PSC efficiency. Addition of the NiO layer resulted in an increased short circuit current density (17.30 mA cm−2 to 20.28 mA cm−2). At an estimated NiO thickness of 17 nm the average cell efficiency (10.73%) surpassed that of the control sample (9.08%) so confirming the promise of this technique.

Graphical abstract: Flame assisted chemical vapour deposition NiO hole transport layers for mesoporous carbon perovskite cells

Supplementary files

Article information

Article type
Paper
Submitted
19 Jul 2019
Accepted
11 Aug 2019
First published
15 Oct 2019
This article is Open Access
Creative Commons BY license

J. Mater. Chem. C, 2019,7, 13235-13242

Flame assisted chemical vapour deposition NiO hole transport layers for mesoporous carbon perovskite cells

H. M. Yates, S. M. P. Meroni, D. Raptis, J. L. Hodgkinson and T. M. Watson, J. Mater. Chem. C, 2019, 7, 13235 DOI: 10.1039/C9TC03922H

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