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Title: Porous materials for energy conversion and storage applications
Author: McCarron, Liam
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 2020
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In recent years the field of organic electronics has seen rapid development, with both academic and industrial relevance. Many organic electronic technologies rely on the self assembly of the active materials to form appropriate channels/phases to either pass or extract charges. The term ‘morphology’ is used to describe the self-assembled channels/phases in the active layer and is key to the performance of organic electronic devices. Porous building blocks can be used to direct the self-assembly of organic materials. The first chapter provides an introduction to the working principles and underlying physics of organic semiconductors, including an overview of band theory. This is followed by a discussion of recent technologies within the field, with a particular focus on bulk heterojunction solar cells. The second chapter describes the use of triptycene based materials for bulk heterojunction solar cells. The first part of this chapter details the use of triptycene and chemically modified triptycenes as additives in PTB7:fullerene solar cells. Building on from the additive work, the second part of this chapter describes the synthesis and characterisation of a new library of benzothiadiazole and thiophene derived triptycene, p-type ‘donor’ materials. The optoelectronic properties of these materials were studied, primarily by Uv-Vis spectroscopy and cyclic voltammetry, and the solid state packing of the materials (and intermediates) were investigated by single crystal X-ray diffractometry. Many of the synthesised materials were successfully incorporated into solar cell devices. In chapter 3, two ‘V’ shaped Trögers base dyes were synthesised and characterised for use in dye-sensitised solar cells. The Trögers base moiety has been utilised as a building block in several materials for optoelectronic applications. By utilising the ‘V’ shape, it could be possible to engineer rigid di-anchored dyes for dye sensitised solar cells. Finally, chapter 4 describes the synthesis and characterisation of triptycene based cathode materials for lithium ion batteries. The cathode materials were studied by single crystal X ray diffractometry and incorporated into lithium ion batteries. In this chapter a first attempt at synthesising tris-flavins around the triptycene framework is described.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QD Chemistry