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

Bo Wen Zhang, Hao Sheng Lin*, Xi Yang Qiu, Qing Jun Shui, Yong Jia Zheng, Mohamad Almesfer, Esko I. Kauppinen, Yutaka Matsuo, Shigeo Maruyama

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)321-327
Number of pages7
JournalCarbon
Volume205
DOIs
Publication statusPublished - 5 Mar 2023
MoE publication typeA1 Journal article-refereed

Keywords

  • Dual-role electrode
  • Hole-transporting layer
  • Perovskite solar cells
  • Poly(triarylamine)
  • Single-walled carbon nanotubes

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