Solution processed graphene structures for perovskite solar cells

Batmunkh, M, Shearer, CJ, Biggs, MJ ORCID: https://orcid.org/0000-0002-2131-3677 and Shapter, JG, 2016. Solution processed graphene structures for perovskite solar cells. Journal of Materials Chemistry A, 4 (7), pp. 2605-2616. ISSN 2050-7488

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Abstract

Organometallic trihalide perovskite light absorber based solar cells have drawn increasing attention because of their recent rapid increase in power conversion efficiency (PCE). These photovoltaic cells have relied significantly on transparent conducting oxide (TCO) electrodes which are costly and brittle. Herein, solution processed transparent conductive graphene films (TCGFs) are utilized, for the first time, as an alternative to traditional TCO electrodes at the electron collecting layer in perovskite solar cells (PSCs). By investigating and optimizing the trade-off between transparency and sheet resistance (Rs) of the graphene films, a PCE of 0.62% is achieved. This PCE is further improved to 0.81% by incorporating graphene structures into both compact and mesoporous TiO2 layers of the solar cell. We anticipate that the present study will lead to further work to develop graphene-based transparent conductive electrodes for future solar cell devices.

Item Type:	Journal article
Publication Title:	Journal of Materials Chemistry A
Creators:	Batmunkh, M., Shearer, C.J., Biggs, M.J. and Shapter, J.G.
Publisher:	Royal Society of Chemistry
Date:	2016
Volume:	4
Number:	7
ISSN:	2050-7488
Identifiers:	Number Type 10.1039/c5ta08996d DOI
Divisions:	Schools > School of Science and Technology
Record created by:	Linda Sullivan
Date Added:	25 Apr 2018 08:56
Last Modified:	25 Apr 2018 08:56
URI:	https://irep.ntu.ac.uk/id/eprint/33320

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