Thienopyrazine-based low-bandgap poly(heteroaryleneethynylene)s for photovoltaic devices

Raja Shahid Ashraf; Munazza Shahid; Elisabeth Klemm; Maher Al-Ibrahim; Steffi Sensfuss

doi:10.1002/marc.200600314

Thienopyrazine-based low-bandgap poly(heteroaryleneethynylene)s for photovoltaic devices

Raja Shahid Ashraf^*, Munazza Shahid, Elisabeth Klemm, Maher Al-Ibrahim, Steffi Sensfuss

^*Corresponding author for this work

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

169 Scopus citations

Abstract

Low-bandgap π-conjugated polymers that consist of alkyl thiophene/alkoxy phenylene and 2,3-diphenylthieno[3,4-b]pyrazine units have been prepared in high yields by a Sonogashira polycondensation. The copolymers are characterized by NMR, IR, UV, GPC, and elemental analysis. Thin films of the polymers P1, P2, and P3 exhibit an optical bandgap of ≈1.57-1.60 eV. Under simulated AM 1.5 conditions P2/PCBM devices on polyester foil provide a short circuit current of I_SC = 10.72 mA · cm^-2, an open circuit voltage of V_∝ = 0.67 V, and a power conversion efficiency of 2.37%.

Original language	English (US)
Pages (from-to)	1454-1459
Number of pages	6
Journal	Macromolecular Rapid Communications
Volume	27
Issue number	17
DOIs	https://doi.org/10.1002/marc.200600314
State	Published - Sep 4 2006
Externally published	Yes

Keywords

Conjugated polymers
Low bandgap polymers
Organic solar cells
Photophysics
Thienopyrazine

ASJC Scopus subject areas

Materials Chemistry
Polymers and Plastics
Organic Chemistry

UN SDGs

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

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10.1002/marc.200600314

Cite this

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title = "Thienopyrazine-based low-bandgap poly(heteroaryleneethynylene)s for photovoltaic devices",

abstract = "Low-bandgap π-conjugated polymers that consist of alkyl thiophene/alkoxy phenylene and 2,3-diphenylthieno[3,4-b]pyrazine units have been prepared in high yields by a Sonogashira polycondensation. The copolymers are characterized by NMR, IR, UV, GPC, and elemental analysis. Thin films of the polymers P1, P2, and P3 exhibit an optical bandgap of ≈1.57-1.60 eV. Under simulated AM 1.5 conditions P2/PCBM devices on polyester foil provide a short circuit current of ISC = 10.72 mA · cm-2, an open circuit voltage of V∝ = 0.67 V, and a power conversion efficiency of 2.37%.",

keywords = "Conjugated polymers, Low bandgap polymers, Organic solar cells, Photophysics, Thienopyrazine",

author = "Ashraf, {Raja Shahid} and Munazza Shahid and Elisabeth Klemm and Maher Al-Ibrahim and Steffi Sensfuss",

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T1 - Thienopyrazine-based low-bandgap poly(heteroaryleneethynylene)s for photovoltaic devices

AU - Ashraf, Raja Shahid

AU - Shahid, Munazza

AU - Klemm, Elisabeth

AU - Al-Ibrahim, Maher

AU - Sensfuss, Steffi

PY - 2006/9/4

Y1 - 2006/9/4

N2 - Low-bandgap π-conjugated polymers that consist of alkyl thiophene/alkoxy phenylene and 2,3-diphenylthieno[3,4-b]pyrazine units have been prepared in high yields by a Sonogashira polycondensation. The copolymers are characterized by NMR, IR, UV, GPC, and elemental analysis. Thin films of the polymers P1, P2, and P3 exhibit an optical bandgap of ≈1.57-1.60 eV. Under simulated AM 1.5 conditions P2/PCBM devices on polyester foil provide a short circuit current of ISC = 10.72 mA · cm-2, an open circuit voltage of V∝ = 0.67 V, and a power conversion efficiency of 2.37%.

AB - Low-bandgap π-conjugated polymers that consist of alkyl thiophene/alkoxy phenylene and 2,3-diphenylthieno[3,4-b]pyrazine units have been prepared in high yields by a Sonogashira polycondensation. The copolymers are characterized by NMR, IR, UV, GPC, and elemental analysis. Thin films of the polymers P1, P2, and P3 exhibit an optical bandgap of ≈1.57-1.60 eV. Under simulated AM 1.5 conditions P2/PCBM devices on polyester foil provide a short circuit current of ISC = 10.72 mA · cm-2, an open circuit voltage of V∝ = 0.67 V, and a power conversion efficiency of 2.37%.

KW - Conjugated polymers

KW - Low bandgap polymers

KW - Organic solar cells

KW - Photophysics

KW - Thienopyrazine

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Thienopyrazine-based low-bandgap poly(heteroaryleneethynylene)s for photovoltaic devices

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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