提高矿太阳能电池的结晶和稳定性,使用在序列沉积中低温处理的A位点离子溶液
Tinghao Li1,2,3, Qiu Xiong1,3,4, Chongzhu Hu1,3
1CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Molecules (Basel, Switzerland)
|May 27, 2023
概括
研究人员开发了一种低温处理矿前体溶液的方法,提高了矿太阳能电池 (PSC) 结晶和效率. 这种方法提高了晶体质量,提高了功率转换效率 (PCE) 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:
- 矿太阳能电池 (PSC) 的两步顺序沉积是常见的,但由于扩散问题,通常会产生较差的晶体质量.
- 矿薄膜的低晶质对PSC的性能和稳定性产生负面影响.
研究的目的:
- 为了提高通过两步顺序沉积制造的矿膜的晶体质量和性能.
- 为了研究一种新的低温处理策略来调节矿结晶.
主要方法:
- 在两步顺序沉积方法中使用低温处理有机基前体溶液.
- 在初始沉积阶段,将有机和化 (PbI2) 膜之间的相互扩散降至最低.
- 在优化条件下对处理过的薄膜进行化,以获得具有改善晶体方向的均矿层.
主要成果:
- 通过改善晶体方向,实现了增强的矿膜质量.
- 在PSC设备中,功率转换效率 (PCE) 提高了:在0.1cm2时为24.10%,在1cm2时为21.56%.
- 显著提高了设备的稳定性,在特定的老化条件下在7000小时后保持95.8%和89.4%的初始PCE.
结论:
- 低温 (LT) 处理策略有效调节矿结晶,从而获得更优质的薄膜质量.
- 这种简单兼容的方法提供了一种有前途的方法来促进PCE并提高PSC的运营稳定性.
- 经过LT处理的策略为优化太阳能电池制造中的矿膜形成提供了一个新的途径.
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