Synergistic tailoring of flavins and quantum dots for solar cell applications

用于太阳能电池应用的黄素和量子点的协同定制

• 批准号: EP/I00243X/1
• 负责人: Ifor Samuel
• 金额: $ 87.09万
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI00243X%2F1
• 关键词: Synergistic; tailoring; flavins; quantum; dots; Synergistic; tailoring; flavins; quantum; dots

The development of renewable energy sources is an urgent problem and so large that many technologies will contribute. Solar photovoltaics can be expected to play a major role because of the abundance of solar energy, and the convenience of electricity as an energy source, but at present they contribute only a tiny fraction of the world's energy supply (e.g. ca. ~0.02% in the US). The major reason for the very limited uptake is that current solar cells are much more expensive than generating power from fossil fuels. Organic semiconductors have the potential to solve this problem by providing a route to much lower cost solar cells. Organic semiconductors are pi-conjugated molecules and polymers, that can be processed from solution via low cost/high volume deposition techniques such as spin-coating, roll-to-roll processing and ink-jet and screen printing. Conjugated polymers are an important class of organic semiconductor that can be used to make flexible thin film devices that are lightweight, highly portable, extremely fashionable and exceptionally marketable.A key barrier to the take-up of organic solar cells is that their efficiency is low (5-7% for solid state devices). This proposal describes a three-pronged approach, whereby each of these approaches has the potential to improve solar cell efficiency. The proposal aims to establish a new collaboration between Prof V. Rotello (UMass), Prof I.D.W. Samuel (St Andrews) and Dr G. Cooke (Glasgow). The synergy of our programme provides the potential for dramatic improvement in photovoltaic efficiency. The three approaches are summarised below:1. New flavin based electron acceptors will be produced with tailored energy levels and photophysical properties.2. New quantum dots will be produced with complementary energy levels to the flavin derivatives. The photovoltaic properties of patterned heterojunctions fabricated from these systems will be investigated.3. Moieties will be included into flavin and nanoparticle systems to facilitate self-assembly and enhanced charge separation. Prototype photovoltaic cells will be fabricated from these systems.

可再生能源的开发是一个紧迫的问题，如此大，以至于许多技术都会做出贡献。由于太阳能的丰富性以及电力作为能源的便利性，可以预期太阳能光伏发挥作用，但目前它们仅贡献了世界能源供应的一小部分（例如，在美国约0.02％）。吸收非常有限的主要原因是，当前的太阳能电池比从化石燃料中产生动力要昂贵得多。有机半导体有可能通过提供较低成本太阳能电池的途径来解决这一问题。有机半导体是PI结合的分子和聚合物，可以通过低成本/高量沉积技术从溶液中处理，例如自旋涂层，滚动到滚动处理，喷射喷气喷射和丝网印刷。共轭聚合物是一类重要的有机半导体类别，可用于制造轻巧，高度便携，非常时尚且极具销售的柔性薄膜设备。有机太阳能电池的关键障碍是，它们的效率很低（固态设备为5-7％）。该提案描述了一种三管齐下的方法，这些方法中的每一种都有提高太阳能电池效率的潜力。该提案旨在在I.D.W.教授（UMass）教授（UMass）之间建立新的合作。塞缪尔（St Andrews）和G. Cooke博士（格拉斯哥）。我们计划的协同作用为光伏效率的显着提高提供了潜力。这三种方法总结了下面：1。新的基于黄素的电子受体将以量身定制的能级和光物理特性生产。2。新的量子点将以互补的能量水平与黄素衍生物产生。将研究由这些系统制造的图案化异缘的光伏特性。3。部分将包括在黄素和纳米颗粒系统中，以促进自组装和增强的电荷分离。原型光伏电池将从这些系统中制造。