Disodium edetate as a promising interfacial material for inverted organic solar cells and the device performance optimization

Xiaodong Li; Wenjun Zhang; Xueyan Wang; Feng Gao; Junfeng Fang

doi:10.1021/am5044278

Disodium edetate as a promising interfacial material for inverted organic solar cells and the device performance optimization

Xiaodong Li, Wenjun Zhang, Xueyan Wang, Feng Gao^*, Junfeng Fang

^*Corresponding author for this work

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

25 Scopus citations

Abstract

Disodium edetate (EDTA-Na), a popular hexadentate ligand in analytical chemistry, was successfully introduced in organic solar cells (OSCs) as cathode interfacial layer. The inverted OSCs with EDTA-Na showed superior performance both in power conversion efficiency and devices stability compared with conventional devices. Interestingly, we found that the performance of devices with EDTA-Na could be optimized through external bias treatment. After optimization, the efficiency of inverted OSCs with device structure of ITO/EDTA-Na/polymer thieno[3,4-b]thiophene/benzodithiophene (PTB7):PC₇₁BM/MoO₃/Al was significantly increased to 8.33% from an initial value of 6.75%. This work introduces a new class of interlayer materials, small molecule electrolytes, for organic solar cells.

Original language	English
Pages (from-to)	20569-20573
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	23
DOIs	https://doi.org/10.1021/am5044278
State	Published - 10 Dec 2014
Externally published	Yes

Keywords

external bias
interlayer
organic solar cells
small molecule electrolytes

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10.1021/am5044278

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title = "Disodium edetate as a promising interfacial material for inverted organic solar cells and the device performance optimization",

abstract = "Disodium edetate (EDTA-Na), a popular hexadentate ligand in analytical chemistry, was successfully introduced in organic solar cells (OSCs) as cathode interfacial layer. The inverted OSCs with EDTA-Na showed superior performance both in power conversion efficiency and devices stability compared with conventional devices. Interestingly, we found that the performance of devices with EDTA-Na could be optimized through external bias treatment. After optimization, the efficiency of inverted OSCs with device structure of ITO/EDTA-Na/polymer thieno[3,4-b]thiophene/benzodithiophene (PTB7):PC71BM/MoO3/Al was significantly increased to 8.33\% from an initial value of 6.75\%. This work introduces a new class of interlayer materials, small molecule electrolytes, for organic solar cells.",

keywords = "external bias, interlayer, organic solar cells, small molecule electrolytes",

author = "Xiaodong Li and Wenjun Zhang and Xueyan Wang and Feng Gao and Junfeng Fang",

note = "Publisher Copyright: {\textcopyright} 2014 American Chemical Society.",

year = "2014",

month = dec,

day = "10",

doi = "10.1021/am5044278",

language = "英语",

volume = "6",

pages = "20569--20573",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "23",

}

TY - JOUR

T1 - Disodium edetate as a promising interfacial material for inverted organic solar cells and the device performance optimization

AU - Li, Xiaodong

AU - Zhang, Wenjun

AU - Wang, Xueyan

AU - Gao, Feng

AU - Fang, Junfeng

PY - 2014/12/10

Y1 - 2014/12/10

N2 - Disodium edetate (EDTA-Na), a popular hexadentate ligand in analytical chemistry, was successfully introduced in organic solar cells (OSCs) as cathode interfacial layer. The inverted OSCs with EDTA-Na showed superior performance both in power conversion efficiency and devices stability compared with conventional devices. Interestingly, we found that the performance of devices with EDTA-Na could be optimized through external bias treatment. After optimization, the efficiency of inverted OSCs with device structure of ITO/EDTA-Na/polymer thieno[3,4-b]thiophene/benzodithiophene (PTB7):PC71BM/MoO3/Al was significantly increased to 8.33% from an initial value of 6.75%. This work introduces a new class of interlayer materials, small molecule electrolytes, for organic solar cells.

AB - Disodium edetate (EDTA-Na), a popular hexadentate ligand in analytical chemistry, was successfully introduced in organic solar cells (OSCs) as cathode interfacial layer. The inverted OSCs with EDTA-Na showed superior performance both in power conversion efficiency and devices stability compared with conventional devices. Interestingly, we found that the performance of devices with EDTA-Na could be optimized through external bias treatment. After optimization, the efficiency of inverted OSCs with device structure of ITO/EDTA-Na/polymer thieno[3,4-b]thiophene/benzodithiophene (PTB7):PC71BM/MoO3/Al was significantly increased to 8.33% from an initial value of 6.75%. This work introduces a new class of interlayer materials, small molecule electrolytes, for organic solar cells.

KW - external bias

KW - interlayer

KW - organic solar cells

KW - small molecule electrolytes

UR - https://www.scopus.com/pages/publications/84917706146

U2 - 10.1021/am5044278

DO - 10.1021/am5044278

M3 - 文章

AN - SCOPUS:84917706146

SN - 1944-8244

VL - 6

SP - 20569

EP - 20573

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 23

ER -

Disodium edetate as a promising interfacial material for inverted organic solar cells and the device performance optimization

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Keywords

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