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.

继续我们的富有成果的合作，该项目的目的是通过合成化学组与实验物理组之间的合作建立详细的联系，即光伏活性分子的结构与太阳能电池的电流特性之间的详细联系。跨学科的重新搜索着重于分子结构对层分子堆叠，抽象和传输特性的影响，以及D-A杂音界面的电荷载体和激子动力学。作为模型系统，已经选择了基于先前协作的结果的寡硫酸 - 苯衍生物，因为它们允许系统的结构和电光特性进行系统的变化。迄今为止的研究集中在具有硫苯骨架长度的变化的材料上，并结合了烷基侧链的变化。基于这些结果，将在蒸发原始膜和与C60的蒸发膜以及完整的P-I-N太阳能电池中进行专门设计，合成和表征。预计，利用系统多样性和新型的寡硫代苯衍生物的结果，可以更好地理解对小分子有机光伏中的基本过程，从而支持具有更高效率的更有指导性的研究设备。