A perylene diimide based polymer: A dual function interfacial material for efficient perovskite solar cells

Fanqi Meng; Kuan Liu; Shuixing Dai; Jiangjian Shi; Huiyin Zhang; Xin Xu; Dongmei Li; Xiaowei Zhan

doi:10.1039/c6qm00309e

A perylene diimide based polymer: A dual function interfacial material for efficient perovskite solar cells

Fanqi Meng, Kuan Liu, Shuixing Dai, Jiangjian Shi, Huiyin Zhang, Xin Xu, Dongmei Li, Xiaowei Zhan

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

51 Citations (Scopus)

Abstract

An n-type semiconducting copolymer of perylene diimide and dithienothiophene (PPDIDTT) is used as a dual function interfacial layer to modify the surface of perovskite films in inverted perovskite solar cells. The PPDIDTT layer can remarkably passivate the surface trap states of perovskite through the formation of a Lewis adduct between the under-coordinated Pb in perovskite and S in the dithienothiophene unit of PPDIDTT, and also shows efficient charge extraction and transfer properties. The PPDIDTT modified devices exhibit a maximum power conversion efficiency of 16.5%, superior to that of the control devices without PPDIDTT (15.3%). In addition, the device stability and hysteresis in J-V curves of the modified devices are also improved compared to those of the control devices.

Original language	English
Pages (from-to)	1079-1086
Number of pages	8
Journal	Materials Chemistry Frontiers
Volume	1
Issue number	6
DOIs	https://doi.org/10.1039/c6qm00309e
Publication status	Published - Jun 2017

ASJC Scopus subject areas

General Materials Science
Materials Chemistry

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10.1039/c6qm00309e

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title = "A perylene diimide based polymer: A dual function interfacial material for efficient perovskite solar cells",

abstract = "An n-type semiconducting copolymer of perylene diimide and dithienothiophene (PPDIDTT) is used as a dual function interfacial layer to modify the surface of perovskite films in inverted perovskite solar cells. The PPDIDTT layer can remarkably passivate the surface trap states of perovskite through the formation of a Lewis adduct between the under-coordinated Pb in perovskite and S in the dithienothiophene unit of PPDIDTT, and also shows efficient charge extraction and transfer properties. The PPDIDTT modified devices exhibit a maximum power conversion efficiency of 16.5%, superior to that of the control devices without PPDIDTT (15.3%). In addition, the device stability and hysteresis in J-V curves of the modified devices are also improved compared to those of the control devices.",

author = "Fanqi Meng and Kuan Liu and Shuixing Dai and Jiangjian Shi and Huiyin Zhang and Xin Xu and Dongmei Li and Xiaowei Zhan",

note = "Funding Information: We thank the National Natural Science Foundation of China (No. 21673011) for financial support. Publisher Copyright: {\textcopyright} 2018 the Partner Organisations.",

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T1 - A perylene diimide based polymer: A dual function interfacial material for efficient perovskite solar cells

AU - Meng, Fanqi

AU - Liu, Kuan

AU - Dai, Shuixing

AU - Shi, Jiangjian

AU - Zhang, Huiyin

AU - Xu, Xin

AU - Li, Dongmei

AU - Zhan, Xiaowei

PY - 2017/6

Y1 - 2017/6

N2 - An n-type semiconducting copolymer of perylene diimide and dithienothiophene (PPDIDTT) is used as a dual function interfacial layer to modify the surface of perovskite films in inverted perovskite solar cells. The PPDIDTT layer can remarkably passivate the surface trap states of perovskite through the formation of a Lewis adduct between the under-coordinated Pb in perovskite and S in the dithienothiophene unit of PPDIDTT, and also shows efficient charge extraction and transfer properties. The PPDIDTT modified devices exhibit a maximum power conversion efficiency of 16.5%, superior to that of the control devices without PPDIDTT (15.3%). In addition, the device stability and hysteresis in J-V curves of the modified devices are also improved compared to those of the control devices.

AB - An n-type semiconducting copolymer of perylene diimide and dithienothiophene (PPDIDTT) is used as a dual function interfacial layer to modify the surface of perovskite films in inverted perovskite solar cells. The PPDIDTT layer can remarkably passivate the surface trap states of perovskite through the formation of a Lewis adduct between the under-coordinated Pb in perovskite and S in the dithienothiophene unit of PPDIDTT, and also shows efficient charge extraction and transfer properties. The PPDIDTT modified devices exhibit a maximum power conversion efficiency of 16.5%, superior to that of the control devices without PPDIDTT (15.3%). In addition, the device stability and hysteresis in J-V curves of the modified devices are also improved compared to those of the control devices.

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JO - Materials Chemistry Frontiers

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A perylene diimide based polymer: A dual function interfacial material for efficient perovskite solar cells

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