Co-solvent effects on the microstructure-related photovoltaic properties of organic solar cells

Fu Chiao Wu; Teng Liang You; Yi Hao Li; Horng Long Cheng

doi:10.1016/j.egypro.2012.07.011

Co-solvent effects on the microstructure-related photovoltaic properties of organic solar cells

Fu Chiao Wu, Teng Liang You, Yi Hao Li, Horng Long Cheng

Department of Photonics

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The current study aims to discover the key factors affecting the photovoltaic performance of poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C ₆₁-butyric acid methyl ester (PCBM) bulk heterojunction solar cells. A low-boiling-point (BP) solvent (chloroform, CF) was mixed with a high-BP solvent (1,2,4-trichlorobenzene, TCB) to dissolve the P3HT:PCBM blends. Moreover, the volume fraction of CF in the CF:TCB co-solvents was varied to fabricate blending films with different microstructures. The results indicate that the disordered P3HT chains enhanced the absorbance and improved the p-n interface of the blending films, thus enhancing the output current, voltage, and hence, the power conversion efficiency of the solar cells despite the formation of small crystalline P3HT domains that limit charge transport.

Original language	English
Pages (from-to)	76-81
Number of pages	6
Journal	Energy Procedia
Volume	25
DOIs	https://doi.org/10.1016/j.egypro.2012.07.011
Publication status	Published - 2012 Jan 1
Event	PV Asia Pacific Conference, PVAP 2011 - Singapore, Singapore Duration: 2011 Nov 2 → 2011 Nov 4

All Science Journal Classification (ASJC) codes

General Energy

UN SDGs

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

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10.1016/j.egypro.2012.07.011

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title = "Co-solvent effects on the microstructure-related photovoltaic properties of organic solar cells",

abstract = "The current study aims to discover the key factors affecting the photovoltaic performance of poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C 61-butyric acid methyl ester (PCBM) bulk heterojunction solar cells. A low-boiling-point (BP) solvent (chloroform, CF) was mixed with a high-BP solvent (1,2,4-trichlorobenzene, TCB) to dissolve the P3HT:PCBM blends. Moreover, the volume fraction of CF in the CF:TCB co-solvents was varied to fabricate blending films with different microstructures. The results indicate that the disordered P3HT chains enhanced the absorbance and improved the p-n interface of the blending films, thus enhancing the output current, voltage, and hence, the power conversion efficiency of the solar cells despite the formation of small crystalline P3HT domains that limit charge transport.",

author = "Wu, {Fu Chiao} and You, {Teng Liang} and Li, {Yi Hao} and Cheng, {Horng Long}",

year = "2012",

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doi = "10.1016/j.egypro.2012.07.011",

language = "English",

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journal = "Energy Procedia",

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publisher = "Elsevier Limited",

note = "PV Asia Pacific Conference, PVAP 2011 ; Conference date: 02-11-2011 Through 04-11-2011",

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T1 - Co-solvent effects on the microstructure-related photovoltaic properties of organic solar cells

AU - Wu, Fu Chiao

AU - You, Teng Liang

AU - Li, Yi Hao

AU - Cheng, Horng Long

PY - 2012/1/1

Y1 - 2012/1/1

N2 - The current study aims to discover the key factors affecting the photovoltaic performance of poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C 61-butyric acid methyl ester (PCBM) bulk heterojunction solar cells. A low-boiling-point (BP) solvent (chloroform, CF) was mixed with a high-BP solvent (1,2,4-trichlorobenzene, TCB) to dissolve the P3HT:PCBM blends. Moreover, the volume fraction of CF in the CF:TCB co-solvents was varied to fabricate blending films with different microstructures. The results indicate that the disordered P3HT chains enhanced the absorbance and improved the p-n interface of the blending films, thus enhancing the output current, voltage, and hence, the power conversion efficiency of the solar cells despite the formation of small crystalline P3HT domains that limit charge transport.

AB - The current study aims to discover the key factors affecting the photovoltaic performance of poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C 61-butyric acid methyl ester (PCBM) bulk heterojunction solar cells. A low-boiling-point (BP) solvent (chloroform, CF) was mixed with a high-BP solvent (1,2,4-trichlorobenzene, TCB) to dissolve the P3HT:PCBM blends. Moreover, the volume fraction of CF in the CF:TCB co-solvents was varied to fabricate blending films with different microstructures. The results indicate that the disordered P3HT chains enhanced the absorbance and improved the p-n interface of the blending films, thus enhancing the output current, voltage, and hence, the power conversion efficiency of the solar cells despite the formation of small crystalline P3HT domains that limit charge transport.

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DO - 10.1016/j.egypro.2012.07.011

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VL - 25

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JO - Energy Procedia

JF - Energy Procedia

T2 - PV Asia Pacific Conference, PVAP 2011

Y2 - 2 November 2011 through 4 November 2011

ER -

Co-solvent effects on the microstructure-related photovoltaic properties of organic solar cells

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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