Magnetic Alignment of Photoconductive Perylene Bisimides
Aligned materials are very important for developing small organic molecules for the use in electronics. Aligning materials makes devices like OPVs work more efficiently and allows for flexible devices. We are using low molecular weight gelators to form worm-like micelles and gel fibres that are photoresponsive. We have already used shear alignment and have preliminary work of magnetically aligned samples showing they align perpendicular to the field. Magnetic alignment is advantageous as it allows the structures to be aligned in different directions. We find there is a great improvement on performance and directional dependence of the photocurrent produced in aligned samples. We will use SANS to probe both the worm-like micelles and gel fibres under a large magnetic field. The strength of the magnetic field required to create an aligned system will be investigated along with the effect of the increased exposure to the field on the alignment over time. We will then compare to previous SANS data to see if the field has effected the structures. We will investigate whether the structures stay aligned after being removed from the field, and if they de-align, how long this process takes.
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Emily R. Draper; ADAMS Dave; HONECKER Dirk and SCHWEINS Ralf. (2018). Magnetic Alignment of Photoconductive Perylene Bisimides. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1523
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