@inproceedings{3c13dda5a0be406e87b130cf715fc615,
title = "Flexo printed sol-gel derived vanadium oxide films as an interfacial hole-transporting layer for organic solar cells",
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.",
author = "Terho Kololuoma and Salima Alem and Jiangping Lu and Neil Graddage and Ye Tao",
year = "2015",
doi = "10.1117/12.2079270",
language = "English",
series = "Proceedings of SPIE",
publisher = "International Society for Optics and Photonics SPIE",
booktitle = "Oxide-based Materials and Devices VI",
address = "United States",
note = "SPIE Photonics West 2015 ; Conference date: 07-02-2015 Through 12-02-2015",
}
