首页|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

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

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

perovskite solar cellscrystal growthwide band gap semiconductorspassivation1,1'-sulfonylbis(2-methyl-1 H-imidazole)

戴峣、王鹏阳、赵颖、张晓丹

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南开大学光电子薄膜器件与技术研究所,可再生能源转换与存储中心,太阳能研究中心,天津 300350

天津市光电薄膜器件与技术重点实验室,天津 300350

物质绿色创造和制造海河实验室,天津 300192

教育部薄膜光电技术工程研究中心,天津 300350

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钙钛矿太阳电池 晶体生长 宽带隙半导体 钝化 1,1'-磺酰基双(2-甲基-1H-咪唑)

国家自然科学基金高等教育学科创新海外人才引进项目海河可持续化学转化实验室项目中央高校基本科研业务费专项南开大学项目

62274099B16027

2024

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

太阳能学报
中国可再生能源学会

太阳能学报

CSTPCD北大核心
影响因子：0.392
ISSN：0254-0096
年,卷(期)：2024.45(4)
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