基于A-D-A型活性层材料的高效率高稳定性有机叠层太阳能电池研究

如何进一步提高光电转换效率和稳定性是有机太阳能电池走向产业化的关键问题。叠层结构器件是获得高效率有机太阳能电池的一个有效途径。本项目拟以制备高效率(>20%)和高稳定性(>10年)的有机叠层太阳电池为目标，通过材料和器件协同优化，设计优化光谱互补的、低开压损失的、基于A-D-A结构的高效前后子电池活性层材料，发展新型全溶液处理中间连接层材料；深入研究前后子电池活性层材料，中间连接层材料对叠层器件各项参数，包括稳定性等的影响制约因素；探索提高叠层器件效率和稳定性的有效途径；揭示高效高稳定有机叠层器件的工作机制；最终获得高效率高稳定的叠层光伏材料体系和器件。

To further improve the power conversion efficiencies(PCEs) and stability is the fundamental issue for the commercialization of organic solar cells. Tandem device is one of the effective strategies to address the above issue. In the proposal, our goal is to get organic solar cells with high PCEs over 20% and good stability with T80 over 10 years. We will design and optimize A-D-A type active layers of the front and rear cells with good complimentary absorptions and low voltage loss. Meanwhile, we also develop all solution processed interconnecting layers. The factors that limit the efficiencies and stabilities of tandem devices, including active layers in the subcells, interconnecting layers will be systematically investigated. We will explore the effective way to obtain high efficiency and good stability tandem device. Meanwhile, we will also study the working mechanism of those high efficiency and good stability tandem devices obtained in the proposal. Last, we will obtain tandem device with high efficiency and long life time and corresponding materials used therein.