利用氧化和光剂作为高效和稳定的反转聚合物太阳能电池的多功能电子传输层
Jinxiang Chen1, Meng Wang2, Ping Cai2
1Longyan New Material & Alternative Energy Industry Institute, Longyan University, Longyan 364012, China.
ACS applied materials & interfaces
|May 14, 2025
概括
研究人员开发了一种新的氧化/光剂双层电子输送层 (ETL) 用于有机太阳能电池 (OSC). 这种ZnO/CBS ETL提高了功率转换效率和光稳定性,在反转的OSC中达到18%以上的PCE.
科学领域:
- 材料科学 材料科学 材料科学
- 太阳能光伏发电是如何实现的
- 有机电子 有机电子
背景情况:
- 高性能有机太阳能电池 (OSC) 需要高效的电子传输层 (ETL).
- 传统的方法,如大量的氧化物 (ZnO) 兴奋剂具有局限性.
- 开发多功能ETL是推进OSC技术的关键.
研究的目的:
- 创建一个新的,高性能ETLOSC使用ZnO/光剂双层的OSCs.
- 为了研究表面修饰与2 2' - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (CBS) 对ZnOETL属性的影响.
- 提高OSC的光伏性能和光稳定性.
主要方法:
- 制造一个ZnO/CBS双层结构作为ETL.
- 描述ZnO/CBS ETL的电子特性 (工作功能,导电性).
- 使用具有不同活性层的新型ETL (PM6:eC9,PM6:L8-BO) 的OSC设备的制造和测试.
- 对设备性能 (功率转换效率 - PCE) 和在照明下稳定性的评估.
主要成果:
- ZnO/CBS双层表现出较低的工作功能,改善了电子提取.
- 光诱导的电子从CBS转移到ZnO增强了ZnO的导电性.
- 在CBS和活性层之间的双向电荷转移改善了电荷传输.
- 在反转的OSC中,获得的PCE为17.42% (PM6:eC9) 和18.16% (PM6:L8-BO).
- 证明了ZnO/CBS ETL的厚度不敏感性.
- 由于阻断紫外线和减少ZnO催化活性,增强光稳性.
结论:
- ZnO/CBS双层是一种高效的ETL,可提高OSC的性能和稳定性.
- 用CBS对ZnO的表面修改为先进ETL设计提供了一个有前途的策略.
- 这种方法显著提高了倒置OSC在实际应用中的潜力.
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