Spiro-OMeTAD versus PTAA for single-walled carbon nanotubes electrode in perovskite solar cells

Poly(triarylamine) (PTAA)-wrapped single-walled carbon nanotubes (SWCNTs) functioned in a dual role as an efficient hole-transporting layer and electrode in perovskite solar cells (PSCs). Thanks to the well-matched energy level, increased hole-transporting mobility, and hydrophobicity rendered by do...

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Bibliographic Details
Published in:	Carbon (New York) Vol. 205; pp. 321 - 327
Main Authors:	Zhang, Bo-Wen, Lin, Hao-Sheng, Qiu, Xi-Yang, Shui, Qing-Jun, Zheng, Yong-Jia, Almesfer, Mohamad, Kauppinen, Esko I., Matsuo, Yutaka, Maruyama, Shigeo
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 05-03-2023
Subjects:	Dual-role electrode Hole-transporting layer Perovskite solar cells Poly(triarylamine) Single-walled carbon nanotubes Poly(triarylamine) Dual-role electrode Single-walled carbon nanotubes Perovskite solar cells Hole-transporting layer
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Summary:	Poly(triarylamine) (PTAA)-wrapped single-walled carbon nanotubes (SWCNTs) functioned in a dual role as an efficient hole-transporting layer and electrode in perovskite solar cells (PSCs). Thanks to the well-matched energy level, increased hole-transporting mobility, and hydrophobicity rendered by dopant-free PTAA, this dual-role SWCNTs electrode applied-PSCs using dopant-free PTAA achieved a better efficiency and stability than reference standards using LiTFSI-doped Spiro-OMeTAD. This dopant-free PTAA-applied SWCNTs electrode is expected to not only give a solution for efficiently using the SWCNTs electrode in PSCs, but also unveil the mechanism of the interaction between the hole-transporting layer and SWCNTs. [Display omitted]
ISSN:	0008-6223 1873-3891
DOI:	10.1016/j.carbon.2023.01.011