1,1'-磺酰基双（2-甲基-1H-咪唑）对宽带隙钙钛矿太阳电池性能的影响

戴峣; 王鹏阳; 赵颖; 张晓丹

doi:10.19912/j.0254-0096.tynxb.2023-1441

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (4) : 43-50. DOI: 10.19912/j.0254-0096.tynxb.2023-1441

1,1'-磺酰基双（2-甲基-1H-咪唑）对宽带隙钙钛矿太阳电池性能的影响

戴峣^1~4, 王鹏阳^1~4, 赵颖^1~4, 张晓丹^1~4

作者信息 +

INFLUENCE OF 1,1 '-SULFONYL BIS （2-METHYL-1H-IMIDAZOLE） ON PERFORMANCE OF WIDE-BAND GAP PEROVSKITE SOLAR CELLS

Dai Yao^1~4, Wang Pengyang^1~4, Zhao Ying^1~4, Zhang Xiaodan^1~4

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文章历史 +

摘要

对倒置结构,带隙为1.68 eV的钙钛矿太阳电池光吸收层掺杂1,1'-磺酰基双（2-甲基-1H-咪唑）,以改善钙钛矿薄膜质量,提高太阳电池性能。空间电荷限制电流（SCLC）测试结果表明,掺杂后的钙钛矿薄膜的缺陷密度明显降低;稳态光致发光光谱（PL）结果表明,掺杂后的钙钛矿薄膜的非辐射复合被显著抑制;最终太阳电池的开路电压达到1.17 V,光电转换效率达到21.42%,在氮气环境下储存1000 h后,未封装的太阳电池仍能保持初始效率的96%,稳定性显著提高。

Abstract

In this work, 1,1'-sulfonyl bis （2-methyl-1H-imidazole） was doped into the light absorption layer of inverted structure perovskite solar cells with a band gap of ~1.68 eV, resulting in improved film quality and device performance. Space charge limited current （SCLC） testing results reveal that the defect density of doped perovskite films decreases significantly, while the steady-state photoluminescence （PL） analysis demonstrates that non-radiative recombination is significantly inhibited. The open-circuit voltage reaches 1.17 V and the photoelectric conversion efficiency achieves 21.42%. The unpackaged device can still maintain 96% of the initial efficiency, and the stability is significantly improved after being stored in nitrogen environment for 1000 hours.

导出引用

戴峣, 王鹏阳, 赵颖, 张晓丹. 1,1'-磺酰基双（2-甲基-1H-咪唑）对宽带隙钙钛矿太阳电池性能的影响[J]. 太阳能学报. 2024, 45(4): 43-50 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1441

Dai Yao, Wang Pengyang, Zhao Ying, Zhang Xiaodan. INFLUENCE OF 1,1 '-SULFONYL BIS （2-METHYL-1H-IMIDAZOLE） ON PERFORMANCE OF WIDE-BAND GAP PEROVSKITE SOLAR CELLS[J]. Acta Energiae Solaris Sinica. 2024, 45(4): 43-50 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1441

中图分类号： TM914.4

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