Investigation on performance enhancement of bulk heterojunction organic solar cells

Meng Chan Su; Li Xin Yi; Yang Wang; Yu Meng Shi; Chun Jun Liang

Investigation on performance enhancement of bulk heterojunction organic solar cells

Meng Chan Su^*, Li Xin Yi, Yang Wang, Yu Meng Shi, Chun Jun Liang

^*Corresponding author for this work

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

4 Scopus citations

Abstract

Four organic solar cells with the different structures were fabricated. The structures are Device l ITO/LiF/PEDOT:PSS/MEH-PPV/C₆₀/Al, Device 2 ITO/PEDOT:PSS/MEH-PPV/C₆₀/Al, Device 3 ITO/LiF/PEDOT:PSS/MEH-PPV:C₆₀/C₆₀/Al and Device 4 ITO/PEDOT:PSS/MEH-PPV:C₆₀/C₆₀/Al. Then we compared the current-voltage (I-V) characteristics of these devices and found that the insertion of a thin LiF layer between the ITO electrode and the PEDOT:PSS layer resulted in much improved device performance. The short-circuit current density (J_SC) and fill factor (FF) of Device 1 were enhanced by 74% and 31%, respectively as compared to those of Device 2. The short-circuit current density (J_SC) of Device 3 is about 1.4 times as large as that of Device 4. The increased solar cell performance mostly can be attributed to the fact that the hole transport to the anode can be effectively suppressed by a thin LiF layer, and the thin LiF layer between the ITO electrode and the PEDOT: PSS layer can form better interface properties. Hence, such change in structure of solar cells improves the performance of the organic solar cells effectively.

Original language	English (US)
Pages (from-to)	740-744
Number of pages	5
Journal	Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Volume	28
Issue number	4
State	Published - Apr 2008
Externally published	Yes

Keywords

Bulk heterojunctions
Fill factor (FF)
LiF
Open-circuit voltage (V)
Organic solar cell
Short-circuit current density (J)

ASJC Scopus subject areas

Instrumentation
Spectroscopy

Cite this

@article{66d6ae5bc12a4fb2a88f4ddae0440fa8,

title = "Investigation on performance enhancement of bulk heterojunction organic solar cells",

abstract = "Four organic solar cells with the different structures were fabricated. The structures are Device l ITO/LiF/PEDOT:PSS/MEH-PPV/C60/Al, Device 2 ITO/PEDOT:PSS/MEH-PPV/C60/Al, Device 3 ITO/LiF/PEDOT:PSS/MEH-PPV:C60/C60/Al and Device 4 ITO/PEDOT:PSS/MEH-PPV:C60/C60/Al. Then we compared the current-voltage (I-V) characteristics of these devices and found that the insertion of a thin LiF layer between the ITO electrode and the PEDOT:PSS layer resulted in much improved device performance. The short-circuit current density (JSC) and fill factor (FF) of Device 1 were enhanced by 74% and 31%, respectively as compared to those of Device 2. The short-circuit current density (JSC) of Device 3 is about 1.4 times as large as that of Device 4. The increased solar cell performance mostly can be attributed to the fact that the hole transport to the anode can be effectively suppressed by a thin LiF layer, and the thin LiF layer between the ITO electrode and the PEDOT: PSS layer can form better interface properties. Hence, such change in structure of solar cells improves the performance of the organic solar cells effectively.",

keywords = "Bulk heterojunctions, Fill factor (FF), LiF, Open-circuit voltage (V), Organic solar cell, Short-circuit current density (J)",

author = "Su, {Meng Chan} and Yi, {Li Xin} and Yang Wang and Shi, {Yu Meng} and Liang, {Chun Jun}",

year = "2008",

month = apr,

language = "English (US)",

volume = "28",

pages = "740--744",

journal = "Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis",

issn = "1000-0593",

publisher = "Science China Press",

number = "4",

}

TY - JOUR

T1 - Investigation on performance enhancement of bulk heterojunction organic solar cells

AU - Su, Meng Chan

AU - Yi, Li Xin

AU - Wang, Yang

AU - Shi, Yu Meng

AU - Liang, Chun Jun

PY - 2008/4

Y1 - 2008/4

N2 - Four organic solar cells with the different structures were fabricated. The structures are Device l ITO/LiF/PEDOT:PSS/MEH-PPV/C60/Al, Device 2 ITO/PEDOT:PSS/MEH-PPV/C60/Al, Device 3 ITO/LiF/PEDOT:PSS/MEH-PPV:C60/C60/Al and Device 4 ITO/PEDOT:PSS/MEH-PPV:C60/C60/Al. Then we compared the current-voltage (I-V) characteristics of these devices and found that the insertion of a thin LiF layer between the ITO electrode and the PEDOT:PSS layer resulted in much improved device performance. The short-circuit current density (JSC) and fill factor (FF) of Device 1 were enhanced by 74% and 31%, respectively as compared to those of Device 2. The short-circuit current density (JSC) of Device 3 is about 1.4 times as large as that of Device 4. The increased solar cell performance mostly can be attributed to the fact that the hole transport to the anode can be effectively suppressed by a thin LiF layer, and the thin LiF layer between the ITO electrode and the PEDOT: PSS layer can form better interface properties. Hence, such change in structure of solar cells improves the performance of the organic solar cells effectively.

AB - Four organic solar cells with the different structures were fabricated. The structures are Device l ITO/LiF/PEDOT:PSS/MEH-PPV/C60/Al, Device 2 ITO/PEDOT:PSS/MEH-PPV/C60/Al, Device 3 ITO/LiF/PEDOT:PSS/MEH-PPV:C60/C60/Al and Device 4 ITO/PEDOT:PSS/MEH-PPV:C60/C60/Al. Then we compared the current-voltage (I-V) characteristics of these devices and found that the insertion of a thin LiF layer between the ITO electrode and the PEDOT:PSS layer resulted in much improved device performance. The short-circuit current density (JSC) and fill factor (FF) of Device 1 were enhanced by 74% and 31%, respectively as compared to those of Device 2. The short-circuit current density (JSC) of Device 3 is about 1.4 times as large as that of Device 4. The increased solar cell performance mostly can be attributed to the fact that the hole transport to the anode can be effectively suppressed by a thin LiF layer, and the thin LiF layer between the ITO electrode and the PEDOT: PSS layer can form better interface properties. Hence, such change in structure of solar cells improves the performance of the organic solar cells effectively.

KW - Bulk heterojunctions

KW - Fill factor (FF)

KW - LiF

KW - Open-circuit voltage (V)

KW - Organic solar cell

KW - Short-circuit current density (J)

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M3 - Article

C2 - 18619287

AN - SCOPUS:43749101537

SN - 1000-0593

VL - 28

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EP - 744

JO - Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

JF - Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

IS - 4

ER -

Investigation on performance enhancement of bulk heterojunction organic solar cells

Abstract

Keywords

ASJC Scopus subject areas

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