Focussed Review of Utilization of Graphene-Based Materials in Electron Transport Layer in Halide Perovskite Solar Cells: Materials-Based Issues

Xinchen Dai, Pramod Koshy, Charles Christopher Sorrell, Jongchul Lim and Jae Sung Yun
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Xinchen Dai: School of Materials Science and Engineering, UNSW Sydney, Sydney 2052, Australia
Pramod Koshy: School of Materials Science and Engineering, UNSW Sydney, Sydney 2052, Australia
Charles Christopher Sorrell: School of Materials Science and Engineering, UNSW Sydney, Sydney 2052, Australia
Jongchul Lim: Graduate School of Energy Science and Technology, Chungnam National University, Daejeon 34134, Korea
Jae Sung Yun: Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, UNSW Sydney, Sydney 2052, Australia

Energies, 2020, vol. 13, issue 23, 1-24

Abstract: The present work applies a focal point of materials-related issues to review the major case studies of electron transport layers (ETLs) of metal halide perovskite solar cells (PSCs) that contain graphene-based materials (GBMs), including graphene (GR), graphene oxide (GO), reduced graphene oxide (RGO), and graphene quantum dots (GQDs). The coverage includes the principal components of ETLs, which are compact and mesoporous TiO 2 , SnO 2 , ZnO and the fullerene derivative PCBM. Basic considerations of solar cell design are provided and the effects of the different ETL materials on the power conversion efficiency (PCE) have been surveyed. The strategy of adding GBMs is based on a range of phenomenological outcomes, including enhanced electron transport, enhanced current density-voltage (J-V) characteristics and parameters, potential for band gap (E g ) tuning, and enhanced device stability (chemical and environmental). These characteristics are made complicated by the variable effects of GBM size, amount, morphology, and distribution on the nanostructure, the resultant performance, and the associated effects on the potential for charge recombination. A further complication is the uncertain nature of the interfaces between the ETL and perovskite as well as between phases within the ETL.

Keywords: perovskite solar cells (PSCs); electron transport layer (ETL); graphene-based materials (GBMs) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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