Investigating the Causes of the Limited Electrical & Photo-Stability of Organic Optoelectronic and Photovoltaic Devices Fabricated by Wet-coating

调查电力有限的原因

• 批准号: RGPIN-2019-04653
• 负责人: Aziz, Hany
• 金额: $ 2.84万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751559
• 关键词: Investigating; Causes; Limited; Electrical; Photo

The promise of low-cost fabrication via "wet" processes, such as inkjet printing, blade-coating and spin-coating, in manufacturing flat panel displays, solid state lighting, solar cells and sensors, has long been one of the main motivations behind the pursuit of organic semiconductors in optoelectronic and photovoltaic devices. Despite the significant progress in the last two decades, evident, for example, in the increasing dominance of organic light emitting devices (OLED) in the display market, the vast majority of these new products are still fabricated by conventional (and costly) "dry" vacuum-deposition methods. A primary reason is the significantly limited stability of devices made by wet-coating processes in comparison to their vacuum-deposited counterparts even when the same materials are utilized. The lower stability leads to a rapid decrease in device performance with time, rendering the devices unsuitable for most commercial applications.     The proposed research aims to uncover the factors behind this phenomenon and to develop approaches to control them, thus make it produce organic optoelectronic and photovoltaic devices with long service life at a much lower cost using these processes, hence cheaper products. The research will utilize a number of advanced experimental techniques pioneered by the applicant and will build on findings from his previous work in this area. Six graduate students will participate in this research. The research results will be critical for future development of durable, yet cheaper, organic light emitting devices and solar cells, which will be pursued in collaboration with Canadian industrial partners. It will, therefore, provide those partners with a competitive edge in an emerging technology of tremendous potential for next generation optoelectronics and energy harvesting devices. The research will also allow training of a new "breed" of Canadian researchers who will acquire expertise in an emerging technology that has the potential to enable new products and market opportunities.

在制造平板显示器、固态照明、太阳能电池和传感器时，通过“湿”工艺（例如喷墨印刷、刮刀涂层和旋涂）实现低成本制造的承诺长期以来一直是其背后的主要动机之一尽管有机半导体在过去二十年取得了重大进展，例如有机发光器件（OLED）在显示器市场中的主导地位日益增强，但其中绝大多数都是新的。产品仍然采用传统（且成本高昂）的“干式”真空沉积方法制造，主要原因是即使使用相同的材​​料，与真空沉积对相比，湿式涂层工艺制造的器件的稳定性也明显有限。较低的稳定性导致器件性能随着时间的推移而迅速下降，使得器件不适合大多数商业应用。​本研究旨在揭示这种现象背后的因素并开发控制它们的方法，从而使其产生有机光电和器件。使用这些工艺以低得多的成本提供长使用寿命的光伏器件，因此该研究将利用申请人首创的许多先进实验技术，并将以他之前在该领域的工作成果为基础。参与这项研究。研究结果对于未来开发耐用且更便宜的有机发光器件和太阳能电池至关重要，因此，它将为这些合作伙伴提供具有竞争力的产品。具有下一代巨大潜力的新兴技术的优势该研究还将培训一批新的加拿大研究人员，他们将获得新兴技术的专业知识，从而有可能创造新产品和市场机会。