Efficient Planar Perovskite Solar Cells with Reduced Hysteresis and Enhanced Open Circuit Voltage by Using PW12-TiO2as Electron Transport Layer

Chun Huang; Canjun Liu; Yunxiang Di; Wenzhang Li; Fangyang Liu; Liangxing Jiang; Jie Li; Xiaojing Hao; Haitao Huang

doi:10.1021/acsami.6b00846

Efficient Planar Perovskite Solar Cells with Reduced Hysteresis and Enhanced Open Circuit Voltage by Using PW₁₂-TiO₂as Electron Transport Layer

Chun Huang, Canjun Liu, Yunxiang Di, Wenzhang Li, Fangyang Liu, Liangxing Jiang, Jie Li, Xiaojing Hao, Haitao Huang

Research output: Journal article publication › Journal article › Academic research › peer-review

41 Citations (Scopus)

Abstract

An electron transport layer is essential for effective operation of planar perovskite solar cells. In this Article, PW12-TiO2composite was used as the electron transport layer for the planar perovskite solar cell in the device structure of fluorine-doped tin oxide (FTO)-glass/PW12-TiO2/perovskite/spiro-OMeTAD/Au. A proper downward shift of the conduction band minimum (CBM) enhanced electron extraction from the perovskite layer to the PW12-TiO2composite layer. Consequently, the common hysteresis effect in TiO2-based planar perovskite solar cells was significantly reduced and the open circuit voltage was greatly increased to about 1.1 V. Perovskite solar cells using the PW12-TiO2compact layer showed an efficiency of 15.45%. This work can contribute to the studies on the electron transport layer and interface engineering for the further development of perovskite solar cells.

Original language	English
Pages (from-to)	8520-8526
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	13
DOIs	https://doi.org/10.1021/acsami.6b00846
Publication status	Published - 20 Apr 2016

Keywords

composite
electron extraction
electron transport layer
interface
planar perovskite solar cells

ASJC Scopus subject areas

General Materials Science

More information

10.1021/acsami.6b00846

Cite this

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title = "Efficient Planar Perovskite Solar Cells with Reduced Hysteresis and Enhanced Open Circuit Voltage by Using PW12-TiO2as Electron Transport Layer",

abstract = "An electron transport layer is essential for effective operation of planar perovskite solar cells. In this Article, PW12-TiO2composite was used as the electron transport layer for the planar perovskite solar cell in the device structure of fluorine-doped tin oxide (FTO)-glass/PW12-TiO2/perovskite/spiro-OMeTAD/Au. A proper downward shift of the conduction band minimum (CBM) enhanced electron extraction from the perovskite layer to the PW12-TiO2composite layer. Consequently, the common hysteresis effect in TiO2-based planar perovskite solar cells was significantly reduced and the open circuit voltage was greatly increased to about 1.1 V. Perovskite solar cells using the PW12-TiO2compact layer showed an efficiency of 15.45%. This work can contribute to the studies on the electron transport layer and interface engineering for the further development of perovskite solar cells.",

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Efficient Planar Perovskite Solar Cells with Reduced Hysteresis and Enhanced Open Circuit Voltage by Using PW₁₂-TiO₂as Electron Transport Layer. / Huang, Chun; Liu, Canjun; Di, Yunxiang et al.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 13, 20.04.2016, p. 8520-8526.

Research output: Journal article publication › Journal article › Academic research › peer-review

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AU - Li, Wenzhang

AU - Liu, Fangyang

AU - Jiang, Liangxing

AU - Li, Jie

AU - Hao, Xiaojing

AU - Huang, Haitao

PY - 2016/4/20

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N2 - An electron transport layer is essential for effective operation of planar perovskite solar cells. In this Article, PW12-TiO2composite was used as the electron transport layer for the planar perovskite solar cell in the device structure of fluorine-doped tin oxide (FTO)-glass/PW12-TiO2/perovskite/spiro-OMeTAD/Au. A proper downward shift of the conduction band minimum (CBM) enhanced electron extraction from the perovskite layer to the PW12-TiO2composite layer. Consequently, the common hysteresis effect in TiO2-based planar perovskite solar cells was significantly reduced and the open circuit voltage was greatly increased to about 1.1 V. Perovskite solar cells using the PW12-TiO2compact layer showed an efficiency of 15.45%. This work can contribute to the studies on the electron transport layer and interface engineering for the further development of perovskite solar cells.

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