Life-time-relevant interaction of materials and printing process parameters

材料和打印工艺参数与寿命相关的相互作用

• 批准号: 511600061
• 负责人: Professor Dr.-Ing. Arved C. Hübler
• 金额: --
• 依托单位: Institut für Print- und Medientechnik
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/511600061?language=en
• 关键词: Life; time; relevant; interaction; materials

The two main tasks to be solved in the P2 project are (I) the fabrication of solar cells by means printing processes and (II) the investigation of the mechanisms involved in the formation of layers, with particular emphasis on durability aspects. Printing is carried out using the standard processes of gravure printing, flexographic printing, screen printing and inkjet printing. In an iterative test procedure, proof prints are first produced and evaluated with regard to layer formation, and then characterized and further analyzed in particular by the partner projects. In a second stage, promising systems are produced in roll-to-roll printing (R2R) and characterized accordingly. PEN/PET films are used as substrate, for the active layer the materials PM6, PTB7-Th, PffBT4T-2OD as well as ITIC, Y6, Y7, but also block co-oligomers are initially in the foreground. The electrodes as well as the charge transfer layers will be designed with adapted standard materials. In parallel to the regular multilayer printing, a new approach is being developed in which the layers are printed on two film sheets and then laminated together in the active layer. This approach promises the possibility to specifically influence the morphology of the active layer in the lamination process. Macroscopic examination, including in situ, is planned to study the layer formation in the printing process and the printing results. Further analyses of the morphology and function of the printed solar cells will be carried out by the partner projects and taken into account in a close iterative process during the development of the printing processes. In addition to the fluid mechanics during ink transfer and the drying process, special attention will be given to the ink formulation. The project is also closely linked to the development of the block co-oligomers. The ink formulation and the sample preparation in the various printing processes also serve in particular to elucidate the intrinsic mechanisms that lead to a reduction in the lifespan and to a degradation of the solar cells.

P2项目要解决的两个主要任务是(I)通过印刷工艺制造太阳能电池和(Ii)研究形成层的机制，特别强调耐用性方面。使用凹版印刷、柔性版印刷、丝网印刷和喷墨印刷等标准工艺进行印刷。在迭代测试程序中，首先制作打样照片，并就层形成进行评估，然后由伙伴项目进行表征和进一步分析，特别是由伙伴项目进行。在第二阶段，在卷筒到卷筒印刷(R2R)中产生有希望的系统，并相应地进行表征。以PEN/PET薄膜为基材，以PM6、PtB7-Th、PffBT4T-20d以及ITIC、Y6、Y7等材料为有源层，并初步确定了嵌段共低聚物的前景。电极和电荷传输层将采用适当的标准材料设计。与常规的多层打印并行，正在开发一种新的方法，在该方法中，层被打印在两个薄膜片材上，然后在有源层中被层叠在一起。这种方法保证了在层压过程中具体影响有源层的形态的可能性。计划进行包括现场在内的宏观检查，以研究印刷过程中的层形成和印刷结果。伙伴项目将对印刷太阳能电池的形态和功能进行进一步的分析，并在制定印刷工艺的过程中密切迭代地加以考虑。除了油墨转移和干燥过程中的流体力学外，还将特别关注油墨配方。该项目还与嵌段共聚低聚物的开发密切相关。各种印刷过程中的油墨配方和样品制备也特别有助于阐明导致太阳能电池寿命缩短和退化的内在机制。