解决有机太阳能电池的效率-机械权衡问题:通过键工程实现了20.4%的效率
Zihao Gao1, Qiaomei Chen1, Meng Duan1
1Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P.R. China.
Angewandte Chemie (International ed. in English)
|January 28, 2026
概括
研究人员开发了新的有机太阳能电池 (OSC),可以克服效率和耐用性之间的权衡. 通过使用共聚合和结合,这些先进的太阳能电池实现了高功率转换效率 (PCE) 和出色的机械强度.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物化学 聚合物化学
背景情况:
- 有机太阳能电池 (OSC) 通常面临的是功率转换效率 (PCE) 和机械强度之间的权衡.
- 高机械性往往需要无形聚合物,这可能会对光伏性能产生负面影响.
研究的目的:
- 解决有机太阳能电池 (OSC) 的效率-稳固性权衡问题.
- 开发新的捐赠聚合物,提高机械性能和光伏性能.
主要方法:
- 采用随机的共聚合物来结合以基替代的烯基单元.
- 引入基 (─OH) 和尿 (─OOCNHC6H13) 组以诱导键.
- 合成了PM6-H,PM6-OH和PM6-UR共聚物.
主要成果:
- 实现了超过46%的裂纹发作应变 (COS) 和高达20.4%的高PCE.
- 证明了优越的存储,热和光稳定性,T80是PM6基准值的两倍.
- 制造的柔性OSC具有18.22%的PCE,并在2200个曲周期后保留了~90%的PCE.
结论:
- 配合聚合与受控的结相互作用有效地克服了OSC的效率-稳固性权衡.
- 开发的聚合物为实际应用提供了高性能,机械耐用和稳定的OSC的途径.
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