An Ultrathin Ferroelectric Perovskite Oxide Layer for High-Performance Hole Transport Material Free Carbon Based Halide Perovskite Solar Cells

Yinglong Yang; Zhenghao Liu; Wai Kit Ng; Lihua Zhang; Hua Zhang; Xiangyue Meng; Yang Bai; Shuang Xiao; Teng Zhang; Chen Hu; Kam Sing Wong; Shihe Yang

doi:10.1002/adfm.201806506

An Ultrathin Ferroelectric Perovskite Oxide Layer for High-Performance Hole Transport Material Free Carbon Based Halide Perovskite Solar Cells

Yinglong Yang
, Zhenghao Liu
, Wai Kit Ng
, Lihua Zhang
, Hua Zhang
, Xiangyue Meng
, Yang Bai
, Shuang Xiao
, Teng Zhang
, Chen Hu
, Kam Sing Wong
, Shihe Yang^*

^*Corresponding author for this work

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

125 Citations (Scopus)

Abstract

The hole transport material (HTM) free carbon based perovskite solar cells (C-PSCs) are promising for its manufactural simplicity, but they currently suffer from low power conversion efficiencies (PCE) largely because of the voltage loss. Here, a new strategy to increase the PCE by incorporating an ultrathin ferroelectric oxide PbTiO₃ layer between the electron transport material and the halide perovskite is reported. The resulting C-PSCs have achieved PCEs up to 16.37%, which is the highest record for HTM-free C-PSCs to date, mainly ascribable to the ferroelectric layer enhanced open circuit voltage. Detail measurements and analysis show an enhanced built-in potential in the C-PSCs as well as suppression of the non-radiative recombination due to the ferroelectric PbTiO₃ layer incorporation, accounting for the boosted V_OC and photovoltaic performance.

Original language	English
Article number	1806506
Journal	Advanced Functional Materials
Volume	29
Issue number	1
DOIs	https://doi.org/10.1002/adfm.201806506
Publication status	Published - 4 Jan 2019
Externally published	Yes

Keywords

PbTiO
carbon
ferroelectricity
hole transport material free
perovskite solar cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/adfm.201806506

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title = "An Ultrathin Ferroelectric Perovskite Oxide Layer for High-Performance Hole Transport Material Free Carbon Based Halide Perovskite Solar Cells",

abstract = "The hole transport material (HTM) free carbon based perovskite solar cells (C-PSCs) are promising for its manufactural simplicity, but they currently suffer from low power conversion efficiencies (PCE) largely because of the voltage loss. Here, a new strategy to increase the PCE by incorporating an ultrathin ferroelectric oxide PbTiO3 layer between the electron transport material and the halide perovskite is reported. The resulting C-PSCs have achieved PCEs up to 16.37\%, which is the highest record for HTM-free C-PSCs to date, mainly ascribable to the ferroelectric layer enhanced open circuit voltage. Detail measurements and analysis show an enhanced built-in potential in the C-PSCs as well as suppression of the non-radiative recombination due to the ferroelectric PbTiO3 layer incorporation, accounting for the boosted VOC and photovoltaic performance.",

keywords = "PbTiO, carbon, ferroelectricity, hole transport material free, perovskite solar cells",

author = "Yinglong Yang and Zhenghao Liu and Ng, \{Wai Kit\} and Lihua Zhang and Hua Zhang and Xiangyue Meng and Yang Bai and Shuang Xiao and Teng Zhang and Chen Hu and Wong, \{Kam Sing\} and Shihe Yang",

note = "Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2019",

month = jan,

day = "4",

doi = "10.1002/adfm.201806506",

language = "English",

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AU - Yang, Yinglong

AU - Liu, Zhenghao

AU - Ng, Wai Kit

AU - Zhang, Lihua

AU - Zhang, Hua

AU - Meng, Xiangyue

AU - Bai, Yang

AU - Xiao, Shuang

AU - Zhang, Teng

AU - Hu, Chen

AU - Wong, Kam Sing

AU - Yang, Shihe

PY - 2019/1/4

Y1 - 2019/1/4

N2 - The hole transport material (HTM) free carbon based perovskite solar cells (C-PSCs) are promising for its manufactural simplicity, but they currently suffer from low power conversion efficiencies (PCE) largely because of the voltage loss. Here, a new strategy to increase the PCE by incorporating an ultrathin ferroelectric oxide PbTiO3 layer between the electron transport material and the halide perovskite is reported. The resulting C-PSCs have achieved PCEs up to 16.37%, which is the highest record for HTM-free C-PSCs to date, mainly ascribable to the ferroelectric layer enhanced open circuit voltage. Detail measurements and analysis show an enhanced built-in potential in the C-PSCs as well as suppression of the non-radiative recombination due to the ferroelectric PbTiO3 layer incorporation, accounting for the boosted VOC and photovoltaic performance.

AB - The hole transport material (HTM) free carbon based perovskite solar cells (C-PSCs) are promising for its manufactural simplicity, but they currently suffer from low power conversion efficiencies (PCE) largely because of the voltage loss. Here, a new strategy to increase the PCE by incorporating an ultrathin ferroelectric oxide PbTiO3 layer between the electron transport material and the halide perovskite is reported. The resulting C-PSCs have achieved PCEs up to 16.37%, which is the highest record for HTM-free C-PSCs to date, mainly ascribable to the ferroelectric layer enhanced open circuit voltage. Detail measurements and analysis show an enhanced built-in potential in the C-PSCs as well as suppression of the non-radiative recombination due to the ferroelectric PbTiO3 layer incorporation, accounting for the boosted VOC and photovoltaic performance.

KW - PbTiO

KW - carbon

KW - ferroelectricity

KW - hole transport material free

KW - perovskite solar cells

UR - https://www.scopus.com/pages/publications/85056484780

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DO - 10.1002/adfm.201806506

M3 - Article

AN - SCOPUS:85056484780

SN - 1616-301X

VL - 29

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 1

M1 - 1806506

ER -

An Ultrathin Ferroelectric Perovskite Oxide Layer for High-Performance Hole Transport Material Free Carbon Based Halide Perovskite Solar Cells

Abstract

Keywords

UN SDGs

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