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Title: Single-walled carbon nanotubes enhance the efficiency and stability of mesoscopic perovskite solar cells
Authors: Batmunkh, Munkhbayar
Shearer, C.J.
Bat-Erdene, Munkhjargal
Biggs, Mark J.
Shapter, J.G.
Keywords: Perovskite solar cells
TiO2 photoelectrode
Carbon nanotubes
Device performance
Device stability
Issue Date: 2017
Publisher: © American Chemical Society
Citation: BATMUNKH, M. ... et al, 2017. Single-walled carbon nanotubes enhance the efficiency and stability of mesoscopic perovskite solar cells. ACS Applied Materials & Interfaces, 9 (23), pp. 19945–19954.
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.
Description: This paper is closed access until 24th May 2018.
Sponsor: Munkhbayar Batmunkh acknowledges International Postgraduate Research Scholarship (IPRS) and Australian Postgraduate Award (APA) for financial support during his study in Australia. The support of the Australian Research Council Discovery Program (DP130101714, DP150101354, and DP160101301) is gratefully acknowledged.
Version: Accepted for publication
DOI: 10.1021/acsami.7b04894
URI: https://dspace.lboro.ac.uk/2134/25302
Publisher Link: http://dx.doi.org/10.1021/acsami.7b04894
ISSN: 1944-8244
Appears in Collections:Closed Access (Chemistry)

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