Electrically Sorted Single-Walled Carbon Nanotubes-Based Electron Transporting Layers for Perovskite Solar Cells

Bati, A, Yu, L, Tawfik, S, Spencer, M, Shaw, P, Batmunkh, M and Shapter, J 2019, 'Electrically Sorted Single-Walled Carbon Nanotubes-Based Electron Transporting Layers for Perovskite Solar Cells', iScience, vol. 14, pp. 100-112.


Document type: Journal Article
Collection: Journal Articles

Title Electrically Sorted Single-Walled Carbon Nanotubes-Based Electron Transporting Layers for Perovskite Solar Cells
Author(s) Bati, A
Yu, L
Tawfik, S
Spencer, M
Shaw, P
Batmunkh, M
Shapter, J
Year 2019
Journal name iScience
Volume number 14
Start page 100
End page 112
Total pages 13
Publisher Elsevier
Abstract Incorporation of as prepared single-walled carbon nanotubes (SWCNTs) into the electron transporting layer (ETL) is an effective strategy to enhance the photovoltaic performance of perovskite solar cells (PSCs). However, the fundamental role of the SWCNT electrical types in the PSCs is not well understood. Herein, we prepared semiconducting (s-) and metallic (m-) SWCNT families and integrated them into TiO2 photoelectrodes of the PSCs. Based on experimental and theoretical studies, we found that the electrical type of the nanotubes plays an important role in the devices. In particular, the mixture of s-SWCNTs and m-SWCNTs (2:1 w/w)-based PSCs exhibited a remarkable efficiency of up to 19.35%, which was significantly higher than that of the best control cell (17.04%). In this class of PSCs, semiconducting properties of s-SWCNTs play a critical role in extracting and transporting electrons, whereas m-SWCNTs provide high conductance throughout the electrode.
Subject Structural Chemistry and Spectroscopy
DOI - identifier 10.1016/j.isci.2019.03.015
Copyright notice © 2019 The author(s). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
ISSN 2589-0042
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