Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells

Terho Kololuoma, Salima Alem, Jiangping Lu, Neil Graddage, Ye Tao

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

3 Citations (Scopus)

Abstract

In this paper we report on the synthesis and development of vanadium oxide precursor flexographic ink for the printing of hole-transporting layers in organic solar cells. For the synthesis of vanadium oxide inks, a sol-gel methodology was utilized. By modifying the vanadium alkoxide precursor with a right type of coordinating ligands a stable and flexoprintable ink has been successfully developed. Flexo-printing afforded smooth and uniform vanadium oxide sol-gel films on top of PCDTBT:PC70BM films. The conversion of the synthesized sol-gel film into a corresponding vanadium oxide layer was followed by DSC/TGA and XPS analyses. The inks were used for the fabrication of inverted organic solar cells by flexo-printing. Power conversion efficiencies ranging between 3.5 % and 4.5 % were achieved, which are slightly lower than the reference cells using vacuum-deposited MoO3 as the hole-transporting layers.
Original languageEnglish
Title of host publicationOxide-based Materials and Devices VI
PublisherInternational Society for Optics and Photonics SPIE
DOIs
Publication statusPublished - 2015
MoE publication typeA4 Article in a conference publication
EventSPIE Photonics West 2015 - San Fracisco, United States
Duration: 7 Feb 201512 Feb 2015

Publication series

SeriesProceedings of SPIE
Volume9364
ISSN0277-786X

Conference

ConferenceSPIE Photonics West 2015
CountryUnited States
CitySan Fracisco
Period7/02/1512/02/15

Fingerprint

Vanadium
Oxide films
Sol-gels
Ink
Oxides
Printing
Conversion efficiency
X ray photoelectron spectroscopy
Organic solar cells
Vacuum
Ligands
Fabrication

Cite this

Kololuoma, T., Alem, S., Lu, J., Graddage, N., & Tao, Y. (2015). Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells. In Oxide-based Materials and Devices VI [93640K] International Society for Optics and Photonics SPIE. Proceedings of SPIE, Vol.. 9364 https://doi.org/10.1117/12.2079270
Kololuoma, Terho ; Alem, Salima ; Lu, Jiangping ; Graddage, Neil ; Tao, Ye. / Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells. Oxide-based Materials and Devices VI. International Society for Optics and Photonics SPIE, 2015. (Proceedings of SPIE, Vol. 9364).
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abstract = "In this paper we report on the synthesis and development of vanadium oxide precursor flexographic ink for the printing of hole-transporting layers in organic solar cells. For the synthesis of vanadium oxide inks, a sol-gel methodology was utilized. By modifying the vanadium alkoxide precursor with a right type of coordinating ligands a stable and flexoprintable ink has been successfully developed. Flexo-printing afforded smooth and uniform vanadium oxide sol-gel films on top of PCDTBT:PC70BM films. The conversion of the synthesized sol-gel film into a corresponding vanadium oxide layer was followed by DSC/TGA and XPS analyses. The inks were used for the fabrication of inverted organic solar cells by flexo-printing. Power conversion efficiencies ranging between 3.5 {\%} and 4.5 {\%} were achieved, which are slightly lower than the reference cells using vacuum-deposited MoO3 as the hole-transporting layers.",
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Kololuoma, T, Alem, S, Lu, J, Graddage, N & Tao, Y 2015, Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells. in Oxide-based Materials and Devices VI., 93640K, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 9364, SPIE Photonics West 2015, San Fracisco, United States, 7/02/15. https://doi.org/10.1117/12.2079270

Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells. / Kololuoma, Terho; Alem, Salima; Lu, Jiangping; Graddage, Neil; Tao, Ye.

Oxide-based Materials and Devices VI. International Society for Optics and Photonics SPIE, 2015. 93640K (Proceedings of SPIE, Vol. 9364).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AB - In this paper we report on the synthesis and development of vanadium oxide precursor flexographic ink for the printing of hole-transporting layers in organic solar cells. For the synthesis of vanadium oxide inks, a sol-gel methodology was utilized. By modifying the vanadium alkoxide precursor with a right type of coordinating ligands a stable and flexoprintable ink has been successfully developed. Flexo-printing afforded smooth and uniform vanadium oxide sol-gel films on top of PCDTBT:PC70BM films. The conversion of the synthesized sol-gel film into a corresponding vanadium oxide layer was followed by DSC/TGA and XPS analyses. The inks were used for the fabrication of inverted organic solar cells by flexo-printing. Power conversion efficiencies ranging between 3.5 % and 4.5 % were achieved, which are slightly lower than the reference cells using vacuum-deposited MoO3 as the hole-transporting layers.

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Kololuoma T, Alem S, Lu J, Graddage N, Tao Y. Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells. In Oxide-based Materials and Devices VI. International Society for Optics and Photonics SPIE. 2015. 93640K. (Proceedings of SPIE, Vol. 9364). https://doi.org/10.1117/12.2079270