活层溶液的工程表面张力,在水面上形成统一的膜,用于大面积的灵活有机光伏模块
Kai Feng1, Xianmin Zhou1, Yerun Gao1
1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China.
Angewandte Chemie (International ed. in English)
|February 13, 2025
概括
研究人员开发了一种使用马兰戈尼力制造大面积有机光伏 (OPV) 膜的新方法. 这种技术利用油调整表面张力,使高效且可扩展的OPV模块制造成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 通过溶液处理为有机光伏 (OPV) 制造均,薄的活性层薄膜的可扩展制造仍然是一个重大挑战.
- 在大面积的OPV模块中实现高功率转换效率 (PCE) 需要精确控制膜形态和均性.
研究的目的:
- 为OPV模块制造大面积,均的活性层薄膜开发一种新的方法.
- 研究由工程表面张力驱动的马兰戈尼力在薄膜形成中的作用.
- 为了证明这种方法在生产高效的OPV设备和模块方面的有效性.
主要方法:
- 使用油作为添加剂,设计了活性层溶液的表面张力,将其从34.8降至20.6mN/m.
- 利用由溶液和水之间的表面张力差异产生的马兰戈尼力,自发形成大面积 (高达700厘米) 的薄膜.
- 将形成的薄膜转移到电荷传输层上,以制造OPV设备和模块.
主要成果:
- 在活性层薄膜中实现了高PCE:PM6:BTP-eC9的17.4±0.3%,D18:N3的17.9±0.7%,PM6:QM-1.0的16.4±0.3%.
- 通过使用Marangoni强力辅助涂层 (MAC) 方法,成功制造了大面积 (32.5厘米2) 的OPV模块,PCE为14.3%.
- 通过使用油进行表面张力工程,展示了MAC方法的首次应用,用于高效的OPV模块制造.
结论:
- 马兰戈尼强力辅助涂层 (MAC) 方法,结合使用油的表面张力工程,为制造大面积,均活性层膜提供了有效的途径.
- 这种方法显著提高了可扩展和高效的有机光伏模块生产潜力.
- 单个设备和大面积模块的高性能证明了MAC方法是未来OPV应用的有希望的技术.
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