Synthesis of New Vat Dyes for Organic Electronics Applications
用于有机电子应用的新型还原染料的合成
基本信息
- 批准号:575247-2022
- 负责人:
- 金额:$ 1.82万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Alliance Grants
- 财政年份:2022
- 资助国家:加拿大
- 起止时间:2022-01-01 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Vat dyes possessing a pi-conjugated structure are drawing considerable attention as potential building blocks for the preparation of highly efficient semiconducting materials for various organic electronic applications. One of the biggest advantages of these dyes is their optical properties in the visible range, making them attractive for both organic solar cells (OSCs) and dye-sensitized solar cells (DSSCs), and for organic light-emitting diode (OLED) applications. In addition, their large carbon-rich, rigid pi-conjugated structure allows for excellent charge transport properties that could be exploited in organic field-effect transistors (OFETs) and battery applications. Other noteworthy advantages are their very low cost when bought in bulk owing to the few, inexpensive synthetic steps required to prepare them, their high environmental, thermal and chemical stability, and the possibility of performing chemical trans- formation to change their properties. Recently, many researchers have explored the chemistry of vat dyes to eventually introduce them as the active component in organic electronic applications. In fact, most of the vat dyes possess a large pi-conjugated system that provides efficient light absorption in the low energy region of the visible spectrum, making them very interesting building blocks for the preparation of light-harvesting semiconductors for OSCs. Moreover, small molecules and polymers based on vat dyes packed very efficiently with a maximum p overlap in the thin-film state, which is highly beneficial to charge transport properties. This is particularly critical for the development of OFETs, whose efficiency strongly depends on the thin-film morphology. Finally, vat dye-based molecules can be made highly emissive by simple derivatization, which makes them interesting candidates for organic light-emitting diode (OLED) applications. In this project, we propose to prepare organic semiconductors made from vat orange 1, a very common and low-cost vat dye, and tests them in organic electronics devices. While the synthesis and basic physical characterization will be achieved in Prof. Morin's lab, all the testing in electronic devices, mostly field-effect transistors (OFETs), will be performed in Prof. Weitz lab in Germany.
具有π共轭结构的还原染料作为制备用于各种有机电子应用的高效半导体材料的潜在构建单元引起了相当大的关注。这些染料的最大优点之一是它们在可见光范围内的光学性质,使它们对有机太阳能电池(OSC)和染料敏化太阳能电池(DSSC)以及有机发光二极管(OLED)应用都具有吸引力。此外,它们的大的富碳刚性π共轭结构允许优异的电荷传输特性,可以在有机场效应晶体管(OFFET)和电池应用中利用。其他值得注意的优点是,由于制备它们所需的合成步骤少,成本低,它们的环境、热和化学稳定性高,并且可以进行化学转化以改变它们的性质。近年来,许多研究人员对还原染料的化学性质进行了探索,最终将其作为有机电子应用中的活性组分。事实上,大多数还原染料具有大的π共轭体系,其在可见光谱的低能量区域中提供有效的光吸收,使它们成为制备用于OSC的光捕获半导体的非常有趣的构建块。此外,基于还原染料的小分子和聚合物在薄膜状态下以最大p重叠非常有效地堆积,这对电荷传输性能非常有益。这对于OFFEX的发展尤其重要,OFFEX的效率在很大程度上取决于薄膜的形态。最后,还原染料为基础的分子可以通过简单的衍生化,这使得它们成为有机发光二极管(OLED)应用的有趣的候选人。在本项目中,我们建议制备由还原橙子1(一种非常常见且低成本的还原染料)制成的有机半导体,并在有机电子设备中对其进行测试。虽然合成和基本的物理特性将在Morin教授的实验室完成,但电子器件的所有测试,主要是场效应晶体管(OFFET),将在德国的Weitz教授实验室进行。
项目成果
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