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

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，而且问题很大，需要许多技术来做出贡献。由于太阳能丰富，且电力作为能源的便利性，太阳能光伏发电有望发挥重要作用，但目前它们仅占世界能源供应的一小部分（例如在美国约占 0.02%）。太阳能电池利用率非常有限的主要原因是目前的太阳能电池比化石燃料发电贵得多。有机半导体有可能通过提供成本更低的太阳能电池来解决这个问题。有机半导体是π共轭分子和聚合物，可以通过低成本/大容量沉积技术（例如旋涂、卷对卷加工以及喷墨和丝网印刷）从溶液中进行加工。共轭聚合物是一类重要的有机半导体，可用于制造重量轻、高度便携、极其时尚且非常畅销的柔性薄膜器件。采用有机太阳能电池的一个主要障碍是其效率低（固态器件为 5-7%）。该提案描述了一种三管齐下的方法，其中每种方法都有可能提高太阳能电池的效率。该提案旨在建立 V. Rotello 教授（麻省大学）、I.D.W. 教授之间的新合作。 Samuel（圣安德鲁斯）和 G. Cooke 博士（格拉斯哥）。我们计划的协同作用为大幅提高光伏效率提供了潜力。这三种方法总结如下： 1．将生产具有定制能级和光物理性质的新型黄素基电子受体。2．新的量子点将与黄素衍生物具有互补的能级。将研究由这些系统制造的图案化异质结的光伏特性。3．部分将被纳入黄素和纳米粒子系统中，以促进自组装和增强电荷分离。原型光伏电池将由这些系统制造。

项目成果

Synthesis and properties of pteridine-2,4-dione-functionalised oligothiophenes

蝶啶-2,4-二酮功能化低聚噻吩的合成与性能

• DOI: 10.1039/c5ra22402k
• 发表时间: 2016
• 期刊: RSC Advances
• 影响因子: 3.9
• 作者: Wiles A

Charge carrier mobility of the organic photovoltaic materials PTB7 and PC71BM and its influence on device performance

• DOI: 10.1016/j.orgel.2015.03.013
• 发表时间: 2015-07-01
• 期刊: ORGANIC ELECTRONICS
• 影响因子: 3.2
• 作者: Ebenhoch, Bernd;Thomson, Stuart A. J.;Samuel, Ifor D. W.
• 通讯作者: Samuel, Ifor D. W.

Engineering the nanoscale morphology of a quantum dot-fullerene assembly via complementary hydrogen bonding interactions.

• DOI: 10.1021/la4007372
• 发表时间: 2013-03
• 期刊: Langmuir : the ACS journal of surfaces and colloids
• 作者: V. Nandwana;Luis A Serrano;K. M. Solntsev;Bernd Ebenhoch;Qian Liu;G. Y. Tonga;I. Samuel;G. Cooke;V. Rotello

Organic solar cells as high-speed data detectors for visible light communication

• DOI: 10.1364/optica.2.000607
• 发表时间: 2015-07
• 作者: Shuyu Zhang;D. Tsonev;S. Videv;Sanjay S. Ghosh;G. Turnbull;I. Samuel;H. Haas

Solution-processed boron subphthalocyanine derivatives as acceptors for organic bulk-heterojunction solar cells

• DOI: 10.1039/c5ta00715a
• 发表时间: 2015-01-01
• 期刊: JOURNAL OF MATERIALS CHEMISTRY A
• 影响因子: 11.9
• 作者: Ebenhoch, Bernd;Prasetya, Nor B. A.;Samuel, Ifor D. W.
• 通讯作者: Samuel, Ifor D. W.