阳离子结合相互作用提高了用于高性能矿太阳能电池的化物的稳定性
Qi Huang1,2, Qiangqiang Zhao2, Bingqian Zhang2
1College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
ACS applied materials & interfaces
|May 7, 2024
概括
引入N,N'-二尿素 (DPU) 稳定矿太阳能电池,通过减少化物损失和抑制迁移. 这提高了功率转换效率和设备稳定性.
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.
- 太阳能光伏发电是如何实现的
背景情况:
- 有机-无机混合矿太阳能电池 (HPSCs) 由于离子Pb-I键,在接口处遭受化物损失.
- 这种损失会产生空缺缺陷,导致非辐射重组,并阻碍功率转换效率 (PCE) 和稳定性.
- 化物迁移也会降低设备在运行过程中的性能.
研究的目的:
- 为了提高化物在矿膜接口上的强度.
- 开发一种使用阳离子结合效应稳定矿膜的策略.
- 提高HPSC的PCE和运行稳定性.
主要方法:
- 使用了一种涉及离子结合效应的策略.
- 引入了N,N欧米诺-二尿素 (DPU),具有Y形结构和高阴离子结合常量.
- DPU充当键捐赠体,以稳定化离子.
主要成果:
- 在矿膜制备过程中,DPU有效地减少了酸的损失.
- 在设备工作条件下,DPU抑制了化物迁移.
- 矿膜质量得到改善,非辐射重组被抑制,导致PCE从23.65%增加到25.01%,并提高了稳定性.
结论:
- DPU是稳定矿太阳能电池的高效添加剂.
- 离子结合策略显著提高了HPSC的性能和寿命.
- DPU改造为推进矿太阳能电池技术提供了一个有前途的途径.
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