Carbon nanotubes as an efficient hole collector for high voltage methylammonium lead bromide perovskite solar cells

Zhen Li; Pablo P. Boix; Guichuan Xing; Kunwu Fu; Sneha A. Kulkarni; Sudip K. Batabyal; Wenjing Xu; Anyuan Cao; Tze Chien Sum; Nripan Mathews; Lydia Helena Wong

doi:10.1039/c5nr06177f

Carbon nanotubes as an efficient hole collector for high voltage methylammonium lead bromide perovskite solar cells

Zhen Li, Pablo P. Boix, Guichuan Xing, Kunwu Fu, Sneha A. Kulkarni, Sudip K. Batabyal, Wenjing Xu, Anyuan Cao, Tze Chien Sum, Nripan Mathews, Lydia Helena Wong^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

99 Citations (Scopus)

Abstract

A high open circuit voltage (V_OC) close to 1.4 V under AM 1.5, 100 mW cm^-2 conditions is achieved when carbon nanotubes (CNTs) are used as a hole conductor in methyl ammonium lead bromide (MAPbBr₃) perovskite solar cells. Time-resolved photoluminescence and impedance spectroscopy investigations suggest that the observed high V_OC is a result of the better charge extraction and lower recombination of the CNT hole conductor. Tandem solar cells with all perovskite absorbers are demonstrated with a MAPbBr₃/CNT top cell and a MAPbI₃ bottom cell, achieving a V_OC of 2.24 V in series connection. The semitransparent and high voltage MAPbBr₃/CNT solar cells show great potential for applications in solar cell windows, tandem solar cells and solar driven water splitting.

Original language	English
Pages (from-to)	6352-6360
Number of pages	9
Journal	Nanoscale
Volume	8
Issue number	12
DOIs	https://doi.org/10.1039/c5nr06177f
Publication status	Published - Mar 28 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2016.

ASJC Scopus Subject Areas

General Materials Science

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title = "Carbon nanotubes as an efficient hole collector for high voltage methylammonium lead bromide perovskite solar cells",

abstract = "A high open circuit voltage (VOC) close to 1.4 V under AM 1.5, 100 mW cm-2 conditions is achieved when carbon nanotubes (CNTs) are used as a hole conductor in methyl ammonium lead bromide (MAPbBr3) perovskite solar cells. Time-resolved photoluminescence and impedance spectroscopy investigations suggest that the observed high VOC is a result of the better charge extraction and lower recombination of the CNT hole conductor. Tandem solar cells with all perovskite absorbers are demonstrated with a MAPbBr3/CNT top cell and a MAPbI3 bottom cell, achieving a VOC of 2.24 V in series connection. The semitransparent and high voltage MAPbBr3/CNT solar cells show great potential for applications in solar cell windows, tandem solar cells and solar driven water splitting.",

author = "Zhen Li and Boix, {Pablo P.} and Guichuan Xing and Kunwu Fu and Kulkarni, {Sneha A.} and Batabyal, {Sudip K.} and Wenjing Xu and Anyuan Cao and Sum, {Tze Chien} and Nripan Mathews and Wong, {Lydia Helena}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

month = mar,

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doi = "10.1039/c5nr06177f",

language = "English",

volume = "8",

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T1 - Carbon nanotubes as an efficient hole collector for high voltage methylammonium lead bromide perovskite solar cells

AU - Li, Zhen

AU - Boix, Pablo P.

AU - Xing, Guichuan

AU - Fu, Kunwu

AU - Kulkarni, Sneha A.

AU - Batabyal, Sudip K.

AU - Xu, Wenjing

AU - Cao, Anyuan

AU - Sum, Tze Chien

AU - Mathews, Nripan

AU - Wong, Lydia Helena

PY - 2016/3/28

Y1 - 2016/3/28

N2 - A high open circuit voltage (VOC) close to 1.4 V under AM 1.5, 100 mW cm-2 conditions is achieved when carbon nanotubes (CNTs) are used as a hole conductor in methyl ammonium lead bromide (MAPbBr3) perovskite solar cells. Time-resolved photoluminescence and impedance spectroscopy investigations suggest that the observed high VOC is a result of the better charge extraction and lower recombination of the CNT hole conductor. Tandem solar cells with all perovskite absorbers are demonstrated with a MAPbBr3/CNT top cell and a MAPbI3 bottom cell, achieving a VOC of 2.24 V in series connection. The semitransparent and high voltage MAPbBr3/CNT solar cells show great potential for applications in solar cell windows, tandem solar cells and solar driven water splitting.

AB - A high open circuit voltage (VOC) close to 1.4 V under AM 1.5, 100 mW cm-2 conditions is achieved when carbon nanotubes (CNTs) are used as a hole conductor in methyl ammonium lead bromide (MAPbBr3) perovskite solar cells. Time-resolved photoluminescence and impedance spectroscopy investigations suggest that the observed high VOC is a result of the better charge extraction and lower recombination of the CNT hole conductor. Tandem solar cells with all perovskite absorbers are demonstrated with a MAPbBr3/CNT top cell and a MAPbI3 bottom cell, achieving a VOC of 2.24 V in series connection. The semitransparent and high voltage MAPbBr3/CNT solar cells show great potential for applications in solar cell windows, tandem solar cells and solar driven water splitting.

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Carbon nanotubes as an efficient hole collector for high voltage methylammonium lead bromide perovskite solar cells

Abstract

Bibliographical note

ASJC Scopus Subject Areas

UN SDGs

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