Cathode modification in planar hetero-junction perovskite solar cells through a small-molecule zwitterionic carboxylate

Liping Zhu; Xiaodong Li; Changjian Song; Xiaohui Liu; Ying Chiao Wang; Wenjun Zhang; Junfeng Fang

doi:10.1016/j.orgel.2017.06.006

Cathode modification in planar hetero-junction perovskite solar cells through a small-molecule zwitterionic carboxylate

Liping Zhu
, Xiaodong Li
, Changjian Song
, Xiaohui Liu
, Ying Chiao Wang
, Wenjun Zhang
, Junfeng Fang^*

^*Corresponding author for this work

Chinese Academy of Sciences

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

22 Scopus citations

Abstract

A new carboxylate functionalized small molecule non-conjugated zwitterion, HDAC was proposed for its feasible one-step synthetic procedure. It can be used as an efficient interlayer to improve the fullerene/cathode interface of inverted planar heterojunction perovskite solar cells. A HDAC modified device could increase the power conversion efficiency from 15% to 17%. The main increase of the performance parameter lies on the increase of fill factor from around 72% to 80%, which could be attributed to the formation of interface dipole and elimination of potential barrier at the interface of electron transporting layer and cathode. This work brings up a simple design principle for efficient interfacial materials in perovskite solar cells.

Original language	English
Pages (from-to)	204-210
Number of pages	7
Journal	Organic Electronics
Volume	48
DOIs	https://doi.org/10.1016/j.orgel.2017.06.006
State	Published - Sep 2017
Externally published	Yes

Keywords

Fill factor
Interface modification
Perovskite solar cells
Zwitterionic carboxylate

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10.1016/j.orgel.2017.06.006

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title = "Cathode modification in planar hetero-junction perovskite solar cells through a small-molecule zwitterionic carboxylate",

abstract = "A new carboxylate functionalized small molecule non-conjugated zwitterion, HDAC was proposed for its feasible one-step synthetic procedure. It can be used as an efficient interlayer to improve the fullerene/cathode interface of inverted planar heterojunction perovskite solar cells. A HDAC modified device could increase the power conversion efficiency from 15\% to 17\%. The main increase of the performance parameter lies on the increase of fill factor from around 72\% to 80\%, which could be attributed to the formation of interface dipole and elimination of potential barrier at the interface of electron transporting layer and cathode. This work brings up a simple design principle for efficient interfacial materials in perovskite solar cells.",

keywords = "Fill factor, Interface modification, Perovskite solar cells, Zwitterionic carboxylate",

author = "Liping Zhu and Xiaodong Li and Changjian Song and Xiaohui Liu and Wang, \{Ying Chiao\} and Wenjun Zhang and Junfeng Fang",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = sep,

doi = "10.1016/j.orgel.2017.06.006",

language = "英语",

volume = "48",

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journal = "Organic Electronics",

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T1 - Cathode modification in planar hetero-junction perovskite solar cells through a small-molecule zwitterionic carboxylate

AU - Zhu, Liping

AU - Li, Xiaodong

AU - Song, Changjian

AU - Liu, Xiaohui

AU - Wang, Ying Chiao

AU - Zhang, Wenjun

AU - Fang, Junfeng

PY - 2017/9

Y1 - 2017/9

N2 - A new carboxylate functionalized small molecule non-conjugated zwitterion, HDAC was proposed for its feasible one-step synthetic procedure. It can be used as an efficient interlayer to improve the fullerene/cathode interface of inverted planar heterojunction perovskite solar cells. A HDAC modified device could increase the power conversion efficiency from 15% to 17%. The main increase of the performance parameter lies on the increase of fill factor from around 72% to 80%, which could be attributed to the formation of interface dipole and elimination of potential barrier at the interface of electron transporting layer and cathode. This work brings up a simple design principle for efficient interfacial materials in perovskite solar cells.

AB - A new carboxylate functionalized small molecule non-conjugated zwitterion, HDAC was proposed for its feasible one-step synthetic procedure. It can be used as an efficient interlayer to improve the fullerene/cathode interface of inverted planar heterojunction perovskite solar cells. A HDAC modified device could increase the power conversion efficiency from 15% to 17%. The main increase of the performance parameter lies on the increase of fill factor from around 72% to 80%, which could be attributed to the formation of interface dipole and elimination of potential barrier at the interface of electron transporting layer and cathode. This work brings up a simple design principle for efficient interfacial materials in perovskite solar cells.

KW - Fill factor

KW - Interface modification

KW - Perovskite solar cells

KW - Zwitterionic carboxylate

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U2 - 10.1016/j.orgel.2017.06.006

DO - 10.1016/j.orgel.2017.06.006

M3 - 文章

AN - SCOPUS:85020417066

SN - 1566-1199

VL - 48

SP - 204

EP - 210

JO - Organic Electronics

JF - Organic Electronics

ER -

Cathode modification in planar hetero-junction perovskite solar cells through a small-molecule zwitterionic carboxylate

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Keywords

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