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Type: Journal article
Title: Single-walled carbon nanotubes enhance the efficiency and stability of mesoscopic perovskite solar cells
Author: Batmunkh, M.
Shearer, C.
Bat-Erdene, M.
Biggs, M.
Shapter, J.
Citation: ACS Applied Materials and Interfaces, 2017; 9(23):19945-19954
Publisher: American Chemical Society
Issue Date: 2017
ISSN: 1944-8244
Statement of
Munkhbayar Batmunkh, Cameron J. Shearer, Munkhjargal Bat-Erdene, Mark J. Biggs and Joseph G. Shapter
Abstract: Carbon nanotubes are 1D nanocarbons with excellent properties and have been extensively used in various electronic and optoelectronic device applications including solar cells. Herein, we report a significant enhancement in the efficiency and stability of perovskite solar cells (PSCs) by employing single-walled carbon nanotubes (SWCNTs) in the mesoporous photoelectrode. It was found that SWCNTs provide both rapid electron transfer and advantageously shifts the conduction band minimum of the TiO2 photoelectrode and thus enhances all photovoltaic parameters of PSCs. The TiO2-SWCNTs photoelectrode based PSC device exhibited a power conversion efficiency (PCE) of up to 16.11%, while the device fabricated without SWCNTs displayed an efficiency of 13.53%. More importantly, we found that the SWCNTs in the TiO2 nanoparticles (TiO2 NPs) based photoelectrode suppress the hysteresis behavior and significantly enhance both the light and long-term storage stability of the PSC devices. The present work provides important guidance for future investigations in utilizing carbonaceous materials for solar cells.
Keywords: TiO2 photoelectrode; carbon nanotubes; device performance; device stability; perovskite solar cells
Rights: © 2017 American Chemical Society
RMID: 0030072268
DOI: 10.1021/acsami.7b04894
Grant ID:
Appears in Collections:Chemical Engineering publications

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