Thesis
Truxene based materials for organic electronics
- Creator
- Rights statement
- Awarding institution
- University of Strathclyde
- Date of award
- 2018
- Thesis identifier
- T15030
- Person Identifier (Local)
- 201365248
- Qualification Level
- Qualification Name
- Department, School or Faculty
- Abstract
- Organic electronics has become a major area of research interest over the last 20–30 years. As society moves away from a reliance on fossil fuels, “cleaner energy” sources are being developed to complement existing avenues for energy, with one such source being organic photovoltaics. Additionally, as technology becomes more ubiquitous in everyday life, consumer expectations have driven advancements to improve the resolution and lifetime of devices while reducing their energy consumption. One way this has manifested itself is with the advent of organic light emitting diode (OLED) displays. In both of these examples, conjugated organic molecules can provide the fundamental function of these organic semiconductor based devices. This thesis describes the synthesis and characterisation of several truxene based materials, which have potential application as interlayers within these devices. Initially, the influence of alkyl chain length was examined on a series of tricarboxylic acids. No significant change was observed in the optical and electrochemical properties; however the thermal properties and crystallographic packing were affected. While these molecules were found to be unsuitable for vacuum deposition, one of the intermediate materials (2.3) demonstrated templating ability. When included in organic photovoltaic devices, the performance was improved by the presence of this truxene interlayer. Following a short screen of reaction conditions, a hexaester (4.4) was prepared in high yields on a multigram scale. As a result of the extended conjugation present, this material exhibited a high PLQY in addition to strong π-π stacking in the crystal structure. Finally, two molecules with cyano containing functionalities were synthesised. These materials both exhibited pseudo-reversible oxidations, and one (5.2) a pseudo-reversible reduction. Additionally, solvatochromism was observed for compound 5.3.
- Advisor / supervisor
- Skabara, Peter
- Ulijn, R., (Rein)
- Resource Type
- Note
- This thesis was previously held under moratorium from 26th October 2018 until 26th October 2023.
- DOI
- Date Created
- 2018
- Former identifier
- 9912678493102996
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