基于硫化的洞运输层,用于矿太阳能电池
Bonkee Koo1, Wooyeon Kim1, Young Kim1
1Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
Small (Weinheim an der Bergstrasse, Germany)
|September 19, 2025
概括
无添加剂的硫化物 (CoxSy) 孔输送层 (HTL) 提高了矿太阳能电池 (PSC) 的性能和稳定性. 双层HTL实现了24.41%的功率转换效率,超过了传统方法.
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
- 无机化学 无机化学
背景情况:
- 矿太阳能电池 (PSC) 中的常规孔运输层 (HTL) 依赖于外部兴奋剂,这往往导致性能限制问题,如结构障碍和电荷捕获.
- 开发无兴奋剂的HTL对于提高PSC稳定性和效率至关重要.
研究的目的:
- 引入和研究硫化物 (CoxSy) 作为一种用于PSCs的新型无兴奋剂无无机HTL.
- 探索在CoxSy中受控静脉测量对带对齐和设备性能的影响.
- 为了提高孔运输和设备效率,使用CoxSy/spiro-OMeTAD双层HTL.
主要方法:
- 通过热注射方法合成相纯CoxSy (CoS,Co4S3,Co9S8),控制前体注射温度.
- 使用合成的CoxSy作为HTLs制造PSC.
- 具有单层和双层 (CoxSy/spiro-OMeTAD) HTL 的 PSC 的表征,评估功率转换效率 (PCE),开放电路电压 (Voc) 和稳定性.
主要成果:
- 经体积测量定义的CoxSy HTLs表现出不同的价值带位置,允许调节带与矿层对齐.
- 单层CoxSy HTL的PSC实现了高达18.65%的PCE和高达1.09V的Voc.
- 一个具有Co4S3/spiro-OMeTAD双层HTL的PSC显示了高PCE的24.41%.
- 基于CoxSy的PSC显示,与仅使用spiro-OMeTAD的设备相比,其热和运行稳定性得到了改善.
结论:
- 无兴奋剂的CoxSy材料是高性能PSC的有效无机HTL.
- 控制式固体测量和双层架构提供了优化频段对齐和电荷传输的途径.
- 该战略强调了未充分利用的非固态度材料在推进光伏技术方面的潜力.
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