Application of UV-absorbing silver(i) luminescent down shifter for PTB7 organic solar cells for enhanced efficiency and stability

Moudam, O., Bristow, N., Chang, S.-W., Horie, M. and Kettle, J. (2015) Application of UV-absorbing silver(i) luminescent down shifter for PTB7 organic solar cells for enhanced efficiency and stability. RSC Advances, 5(16), pp. 12397-12402. (doi: 10.1039/C4RA14794D)

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Abstract

Presented in this work is the application of a new silver(I) complex [Ag(POP)(Bphen)](BF4) (denoted AgPOP) to provide a means for down-shifting incident ultraviolet (UV) light into the visible range for PTB7-based organic solar cells. The synthesis, material, and optical characterisation of the AgPOP with PTB7 are reported. This material was applied to the OPV light-incident surface without the need for a host polymer. The luminescent down shifting layer serves two purposes. Firstly it improves the photocurrent of the OPV, and thus the efficiency through enhancement of the UV spectral response of the device. This is corroborated by external quantum efficiency data showing enhanced performance at UV wavelengths. Secondly, the AgPOP layer reduces the effect of degradation that originates from UV exposure, which leads to enhanced lifetime.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kettle, Dr Jeff
Authors: Moudam, O., Bristow, N., Chang, S.-W., Horie, M., and Kettle, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:RSC Advances
Publisher:Royal Society of Chemistry
ISSN:2046-2069
ISSN (Online):2046-2069
Published Online:14 January 2015

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