MoS2-carbon nanotube heterostructure as efficient hole transporters and conductors in perovskite solar cells

Yang Qian, Seungju Seo, Il Jeon, Haosheng Lin, Shuhei Okawa, Yongjia Zheng, Ahmed Shawky, Anton Anisimov, Esko I. Kauppinen, Jing Kong, Rong Xiang, Yutaka Matsuo, Shigeo Maruyama

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

We demonstrate the excellent hole-transporting ability of molybdenum disulfide (MoS2) by applying one-dimensional (1D) and two-dimensional (2D) mixed MoS2-single-walled carbon nanotube (MoS2-SWCNT) heterostructures to perovskite solar cells. The CVD-synthesized MoS2-SWCNT functions as both the hole transport layer and anode at the same time. Compared with bare SWCNT, the wrapping of 1D/2D MoS2 around SWCNT improved the power conversion efficiency (PCE) by almost 20%, owing to the substantial enhancement of the fill factor. A PCE of 15.0% has been achieved after the application of 2,2′,7,7′-Tetrakis-9,9′-spirobifluorene (spiro-MeOTAD).

Original languageEnglish
Article number075009
Number of pages4
JournalAPPLIED PHYSICS EXPRESS
Volume13
Issue number7
DOIs
Publication statusPublished - 1 Jul 2020
MoE publication typeA1 Journal article-refereed

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