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稳定的矿太阳能电池的分子聚合策略具有低泄漏率

Qixin Zhuang¹, Zhiyuan Xu¹, Haiyun Li¹

¹College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China.

Science advances

|May 7, 2025

概括

在矿太阳能电池 (PSC) 中添加聚合物N,N'-bis(烯) 囊胺 (PBAC) 增强了稳定性并减少了泄漏. 这种创新提高了效率和耐用性,为商业化铺平了道路.

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:

矿太阳能电池 (PSC) 的商业化受到泄漏和稳定性不佳的阻碍.
矿膜中的缺陷导致性能降低和环境问题.

研究的目的:

制定一种策略,以减轻泄漏,并提高公共服务公司的运营稳定性.
研究聚合物N,N extprime-bis(acryloyl) cystamine (PBAC) 在提高矿膜质量和设备性能方面的作用.

主要方法:

将N,N extprime-bis(acryloyl) cystamine (BAC) 纳入矿前体溶液中.
在薄膜化过程中,聚合物PBAC在粒边界的现场形成.
在各种压力条件下对PBAC修改PSC的性能和稳定性测试.

主要成果:

修改PBAC可以使缺陷无效,并显著减少泄漏 (在水浸浸中~72%).
经PBAC修改的PSC实现了高功率转换效率:25.53% (0.1厘米2) 和24.03% (1.0厘米2).
设备表现出极好的稳定性,在连续运行1500小时后保持96%的效率,在热暴露2000小时后保持81%的效率.

结论:

在现场形成PBAC是提高PSC稳定性和减少泄漏的有效策略.
开发的方法为高性能和耐用的矿太阳能电池的商业化提供了一个有前途的途径.

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P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...