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Single-walled carbon nanotubes enhance the efficiency and stability of mesoscopic perovskite solar cells

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journal contribution
posted on 08.06.2017, 13:33 by Munkhbayar Batmunkh, C.J. Shearer, Munkhjargal Bat-Erdene, Mark Biggs, J.G. Shapter
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.

Funding

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.

History

School

  • Science

Department

  • Chemistry

Published in

ACS Applied Materials & Interfaces

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.

Publisher

© American Chemical Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

24/05/2017

Publication date

2017

Notes

This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acsami.7b04894.

ISSN

1944-8244

eISSN

1944-8252

Language

en

Exports