辅助埋葬接口被动化向稳定和低再组合损失的矿光伏产品
Tinghao Li1,2,3, Can Wang1,3,4, Chongzhu Hu1,3
1CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China.
Small science
|April 11, 2025
概括
本研究介绍了一种使用苏胺 (SID) 的多层被动化 (MLP) 策略,以减少矿太阳能电池 (PSC) 的缺陷. 该MLP方法提高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:
- 矿太阳能电池 (PSC) 在散装矿和异质连接接口上存在缺陷.
- 目前的被动化策略通常集中在矿批量或接口上,对它们的相互连接进行有限的探索.
研究的目的:
- 引入和研究一种新型的多层被动化 (MLP) 策略,使用苏胺 (SID) 来同时被动化PSC中的矿批量和埋藏接口.
- 通过这种综合性被动化方法,提高PSC的性能和稳定性.
主要方法:
- 苏胺 (SID) 被加入到化前体溶液中,并沉积在一个锡氧化物 (SnO2) 膜上.
- 分析了SID与Pb2+ (路易斯基协调) 和化离子 (结) 的协调化学.
- 表面缺陷,如氧空隙和SnO2表面的基团被SID被动化.
主要成果:
- 该MLP策略有效地减少了矿层内的缺陷,并抑制了非辐射重组.
- SnO2接口的SID被动化促进了更好的载体分离和提取.
- 使用两步制造工艺,实现了24.47%的功率转换效率 (PCE).
- 未封装的设备表现出了显著的稳定性,在周围环境 (20°C,30%RH) 条件下7000小时后保留了82%的初始PCE.
结论:
- 开发的多层被动化 (MLP) 策略为同时解决矿散体和埋藏接口缺陷提供了一个有希望的方法.
- 这种集成的被动化方法显著提高了矿太阳能电池的功率转换效率和长期运行稳定性.
- 这些发现突出了MLP战略在推动PSC技术的商业可行性方面的潜力.
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