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多功能螺旋酸基外接口使V_oc达到矿太阳能电池理论极限的95%

Xinyu Hu^1,2, Ni Shen², Dezhong Zhang¹

¹State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, China.

Advanced materials (Deerfield Beach, Fla.)

|February 1, 2024

概括

研究人员开发了一种新型的exciplex接口,使用螺旋化酸分子来减少矿太阳能电池 (PSC) 中的电压损失. 这一突破提高了功率转换效率和稳定性,为更广泛的PSC应用铺平了道路.

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:

金属化物矿太阳能电池 (PSC) 在功率转换效率 (PCE) 中取得了显著进展.
然而,PSC中的开通电路电压 (VOC) 受到界面问题的显著限制,包括缺陷重组,能量频段错位和界面接触差.
解决这些局限性对于推进PSC技术至关重要.

研究的目的:

开发一种新的接口策略,以减轻矿太阳能电池 (PSC) 的开放电路电压 (VOC) 损失.
研究专门设计的exciplex接口在提高PSC性能和稳定性方面的有效性.

主要方法:

合成两个螺旋化酸分子以创建一个exciplex接口.
使用新型的exciplex接口与孔输送层一起制造PSC.
界面属性的表征,包括孔提取,缺陷被动化和能量水平对齐.

主要成果:

实现了1.26V的开放电路电压 (VOC) 的记录,用于具有1.61 eV带隙的矿太阳能电池,超过了理论极限的95%.
由于优化的接口,功率转换效率 (PCE) 从21.29%提高到24.12%.
观察到PSC的运营稳定性得到改善.

结论:

开发的exciplex接口有效地解决了PSC中VOC损失的长期挑战.
在接口工程中使用多功能分子的策略为提高PSC性能和稳定性提供了一个有希望的途径.
预计这一进展将加速矿太阳能电池技术的商业化和更广泛的应用.

关键词:

挥发性有机化合物的损失缺陷被动化缺陷被动化一个特殊的Exciplex.挖掘洞的方法挖掘洞的方法螺旋二二酸酸盐是什么?

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