Organic solar cells based on oligothiophene derivatives

基于低聚噻吩衍生物的有机太阳能电池

• 批准号: 66864498
• 负责人: Professor Dr. Peter Bäuerle
• 金额: --
• 依托单位: Clarendon Laboratory
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/66864498?language=en
• 关键词: Organic; solar; cells; based; oligothiophene

Continuing our fruitful collaboration, the objective of the project is to establish – by a collaboration between a synthetic chemistry group and an experimental physics group – a detailed link between the structure of the photovoltaic active molecules and the electro-optical properties of solar cells made from them. The interdisciplinary re-search focuses on the influence which changes in the molecule structure have on molecular stacking, absorption and transport properties of the layers, and the charge carrier and exciton dynamics at the D-A heterointerface. As model system, oligothio-phene derivatives have been chosen building on results of a previous collaboration, because they allow for systematic variations of their structural and electro-optical properties. The investigations so far focused on materials with variations of the length of the thiophene backbone combined with variations of the alkyl side chains. Based on these results further oligothiophenes will be specifically designed, synthesised and characterised in evaporated pristine films and blends with C60, as well as in complete p-i-n solar cells. Using the results from the systematically varied and novel oligothio-phene derivatives, a better understanding of the elementary processes in small-molecule organic photovoltaics is expected, supporting more directed research to-wards devices with higher efficiency.

继续我们富有成效的合作，该项目的目标是通过合成化学小组和实验物理小组之间的合作，建立光伏活性分子的结构与由它们制成的太阳能电池的电光特性之间的详细联系。跨学科的研究集中在分子结构的变化对分子堆叠，层的吸收和输运性质，以及在D-A异质界面的电荷载流子和激子动力学的影响。作为模型系统，oligothiophene衍生物已被选定为建立在以前的合作的结果，因为它们允许其结构和电光特性的系统变化。到目前为止，研究集中在噻吩主链长度变化与烷基侧链变化相结合的材料上。基于这些结果，进一步的低聚噻吩将被专门设计，合成和表征在蒸发的原始膜和与C60的共混物，以及在完整的p-i-n太阳能电池。利用这些系统多样的新型低聚噻吩衍生物的研究结果，有望更好地理解小分子有机光催化剂中的基本过程，支持更有针对性的研究，以获得更高效率的器件。