Discotic liquid crystals photovoltaic applications
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Date
2008-07-28
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
International Conference on the Photochemical Conversion and Storage of Solar Energy
Abstract
Discotic liquid crystals, arranged into columnar stacks, have shown high mobility along the aromatic core of the liquid crystalline phase.1 This property has already been exploited in other photovoltaic devices2, however maintaining the quality of the liquid crystal mesophases can be quite challenging. The concept is to control the morphology and alignment of well characterised liquid crystals, and then to polymerise the side-chains of the liquid crystals along the column in order to solidify the structure of the liquid crystal (Figure 1). The resulting polymerised liquid crystals theoretically provides a structure more suitable to charge conduction by hindering rotational and translational fluctuations.3 The project will involve much structural analysis based on wide angle 2D x-ray4, small angle x-ray and neutron scattering5, allowing us to investigate both the intracolumnar, and intercolumnar, distances of these new materials, whilst the dynamics of the fluctuations within the columns will be investigated using quasielastic neutron scattering6. These materials should have greater stability and conductivity, which will be important for potential applications in photovoltaic and other organic electronics. The hope of this project is to develop a new approach organic semiconductor technology; integrating organic conducting polymers and liquid crystal conductors, which could pave a new way of producing solution deposed organic solar cells or LED lighting.
Description
Hardcopy held by ANSTO Library at DDC 621.48/7
Keywords
Liquid crystals, Photovoltaic effect, Morphology, Small angle scattering, Materials, Fluctuations, Light emitting diodes
Citation
Stride, J. A., & Ellis, T. K. (2017). Discotic liquid crystals photovoltaic applications. Paper presented to the 17th International Conference on Photochemical Conversion and Storage of Solar Energy 2008, Sunday 27 July - Friday 1 August 2008, Sydney Convention and Exhibition Centre, Australia, (pp. 90)