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蒸汽辅助的方法存储紧 (CH₃NH₃) ₃Bi₂I₉薄膜为木基平面岩太阳能电池

Zihao Gao^1,2, Xinjie Wang^1,2, Zhen Sun^1,2

¹State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.

|March 6, 2025

概括

一种两步蒸汽辅助的方法提高了基于木的矿 (MBI) 膜质量,用于太阳能电池. 这种方法提高了MBI太阳能电池的性能和稳定性,提供了一个有希望的无毒替代品.

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
纳米技术纳米技术

背景情况:

基于石的矿衍生物,特别是 (CH3NH3) 3Bi2I9 (MBI),由于其固有的稳定性,被探索为光电设备的无毒吸光材料.
目前基于MBI的矿太阳能电池 (PSC) 患有低于最佳的薄膜质量,阻碍了它们的性能,而不是基于的同行.
改善MBI膜形态对于提高这些环保太阳能电池的效率和商业可行性至关重要.

研究的目的:

通过不同的方法来研究和比较MBI膜的晶体结构和形态特性.
确定一种制备技术,产生高质量的MBI薄膜,适用于高效的矿太阳能电池.
评估使用优化方法制造的基于MBI的PSC的光伏性能和长期稳定性.

主要方法:

对MBI薄膜制备技术的比较分析,重点是溶液和两步蒸汽辅助方法.
使用BiI3种子层在两步蒸汽辅助方法中诱导MBI晶核.
基于MBI的矿太阳能电池 (PSC) 的制造和表征,使用不同制备方法的薄膜.

主要成果:

两步蒸汽辅助方法成功地产生了连续和密集的MBI膜,归因于BiI3诱导的核化.
通过蒸汽辅助方法制备的MBI薄膜与使用溶液方法制备的MBI薄膜相比,对PSC制造具有更高的适用性.
优化的基于MBI的PSC实现了1.13%的功率转换效率,并在存储60天后保持了99%的性能.

结论:

蒸汽辅助沉积是提高MBI膜质量的有效策略.
这种方法显著提高了基于斯木的平面PSC的性能和稳定性.
这些发现突显了MBI作为光伏应用中的稳定,无毒替代品的潜力.

关键词:

(CH3NH3) 3Bi2I9 薄膜是一种薄膜.种子层是一种种子层.蒸汽辅助方法是一种蒸汽辅助方法.

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