Vacuum-free fabrication of organic solar cell on assembled glass substrates

Yang Hao-Chun; Zha Wusong; Weng Chia-Ning; Chen Chao-Hsuan; Zan Hsiao-Wen; Su Kuan-Wei; Luo Qun; Ma Chang-Qi; Chao Yu-Chiang; Meng Hsin-Fei

摘要

Vacuum-free fabrication is essential to realize large-scale production of organic solar cells. Blade-coating and printing are important solution-processing techniques to realize this idea. Preparation devices on large substrates is important for mass production; however, it is not easy to handle large substrates during fabrication procedures. In this work, we demonstrate a fabrication method for all-solution vacuum-free organic solar cells on an assembled glass substrates. Small pieces of glasses were assembled into a mosaic of larger total size for device fabrication. A gap-prefilling method was also developed to realize uniform thickness distribution. For the device with blade-coated ZnO electron transport layer, blade-coated active layer, spray-coated hole transport layer and spray-coated top electrode, power conversion efficiency of 4.19% is obtained. This showed that, by combining spray and blade coating, ultimate scale of the vacuum-free fabrication of OPV on glass substrate will not be limited by the substrate size itself, and can be scaled up to multi-meter by assembling the glasses into a mosaic.ABSTRACT Vacuum-free fabrication is essential to realize large-scale production of organic solar cells. Blade-coating and printing are important solution-processing techniques to realize this idea. Preparation devices on large substrates is important for mass production; however, it is not easy to handle large substrates during fabrication procedures. In this work, we demonstrate a fabrication method for all-solution vacuum-free organic solar cells on an assembled glass substrates. Small pieces of glasses were assembled into a mosaic of larger total size for device fabrication. A gap-prefilling method was also developed to realize uniform thickness distribution. For the device with blade-coated ZnO electron transport layer, blade-coated active layer, spray-coated hole transport layer and spray-coated top electrode, power conversion efficiency of 4.19% is obtained. This showed that, by combining spray and blade coating, ultimate scale of the vacuum-free fabrication of OPV on glass substrate will not be limited by the substrate size itself, and can be scaled up to multi-meter by assembling the glasses into a mosaic.

机译：自由真空制造对于实现有机太阳能电池的大规模生产是必不可少的。刀片涂层和印刷是实现这个想法的重要解决方案加工技术。大基板上的制备装置对于大规模生产很重要;然而，在制造过程中处理大基板并不容易。在这项工作中，我们展示了组装玻璃基板上的全溶液真空有机太阳能电池的制造方法。将小块玻璃组装成较大总尺寸的马赛克，用于器件制造。还开发了一种间隙预填充方法来实现均匀的厚度分布。对于具有叶片涂覆的ZnO电子传输层的装置，涂覆的有源层，喷涂空穴传输层和喷涂的顶电极，获得4.19％的功率转换效率。这表明，通过组合喷雾和叶片涂层，通过将玻璃基板上的OPV的无柱形制造的最终规模不受基板尺寸本身的限制，并且可以通过将眼镜组装成马赛克来缩放到多米。无效的真空制造对于实现有机太阳能电池的大规模生产是必不可少的。刀片涂层和印刷是实现这个想法的重要解决方案加工技术。大基板上的制备装置对于大规模生产很重要;然而，在制造过程中处理大基板并不容易。在这项工作中，我们展示了组装玻璃基板上的全溶液真空有机太阳能电池的制造方法。将小块玻璃组装成较大总尺寸的马赛克，用于器件制造。还开发了一种间隙预填充方法来实现均匀的厚度分布。对于具有叶片涂覆的ZnO电子传输层的装置，涂覆的有源层，喷涂空穴传输层和喷涂的顶电极，获得4.19％的功率转换效率。这表明，通过组合喷雾和叶片涂层，通过将玻璃基板上的OPV的无柱形制造的最终规模不受基板尺寸本身的限制，并且可以通过将眼镜组装成马赛克来缩放到多米。。

Vacuum-free fabrication of organic solar cell on assembled glass substrates

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