基于蒂奥芬的二维迪昂-雅各布斯基特太阳能电池,效率超过15%
Di Lu1, Guangwei Lv1, Zhiyuan Xu1
1The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
Journal of the American Chemical Society
|June 2, 2020
概括
研究人员开发了一种基于硫的新间隔器,用于二维 (2D) 矿太阳能电池 (PSC). 这一进步导致了二维迪昂-雅各布森 (DJ) 矿装置的记录效率和增强稳定性.
科学领域:
- 材料科学
- 太阳能发电
- 固态化学
背景情况:
- 二维 (2D) 矿比光伏应用中的3D对应物具有调节性质和更好的稳定性.
- 开发有效的有机隔离器对于提高二维矿太阳能电池的性能和耐用性至关重要.
- 在改善二维矿的结构和电子特性方面,芳香间隔器特别具有前景.
研究的目的:
- 在二维迪昂-雅各布斯基特 (DJ) 太阳能电池中合成和应用一种基于硫的新型体积较大的隔离剂,即2,5-硫甲基 (ThDMA).
- 研究ThDMA对二维矿薄膜的结构,光物理和稳定性的影响.
- 在二维DJ矿太阳能电池中实现创纪录的效率和改进的运行稳定性.
主要方法:
- 使用混合溶剂系统 (DMF/DMSO, 9:1) 的单步合成方法制造了高质量的二维DJ矿膜.
- 开发的ThDMA间隔器被纳入了 (ThDMA) ((MA) PbI3 (名义n=5) 的矿结构中.
- 通过效率测量来表征设备的性能,并在各种条件下评估稳定性 (惰性大气,光浸泡,热应力).
主要成果:
- 获得了高质量的二维DJ矿薄膜,其结晶性得到改善,垂直方向更好,运载器寿命更长.
- 优化的二维DJ矿太阳能电池实现了以芳香间隔器为基础的设备的15.75%的功率转换效率.
- 在N2存储1655小时后,未封装的装置保持了95%以上的初始效率.
- 与3D矿相比,观察到显著增强的光浸透和热稳定性 (80°C).
结论:
- 基于蒂奥芬的芳香间隔剂,如ThDMA,在开发高效和稳定的二维DJ矿太阳能电池方面是有效的.
- 开发的制造方法和材料设计为下一代矿光伏提供了有前途的途径.
- 进一步的设备工程和类似的芳香间隔器的探索可能会导致矿太阳能电池技术的更大进步.
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