添加剂提高宽带隙钙钛矿太阳电池的性能

李卓芯; 冯旭铮; 陈香港; 刘雪朋; 戴松元; 蔡墨朗

doi:10.19912/j.0254-0096.tynxb.2023-1386

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (4) : 30-35. DOI: 10.19912/j.0254-0096.tynxb.2023-1386

添加剂提高宽带隙钙钛矿太阳电池的性能

李卓芯, 冯旭铮, 陈香港, 刘雪朋, 戴松元, 蔡墨朗

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ADDITIVE IMPROVES PERFORMANCE OF WIDE BANDGAP PEROVSKITE SOLAR CELLS

Li Zhuoxin, Feng Xuzheng, Chen Xianggang, Liu Xuepeng, Dai Songyuan, Cai Molang

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摘要

该文研究聚对苯乙烯磺酸钠（PSS）对宽带隙钙钛矿薄膜及电池的影响。研究发现PSS添加剂可改善宽带隙钙钛矿薄膜的形貌,提升结晶度并减少缺陷态密度,这有利于抑制混合卤素宽带隙钙钛矿薄膜的相分离问题。J-V测试结果表明钝化后的宽带隙钙钛矿太阳电池性能得到明显提升。在掺有PSS的宽带隙钙钛矿太阳电池中,开路电压最高可达1.23 V,效率最高可达20.54%,并且相分离被抑制后的封装钙钛矿太阳电池稳定性显著改善,在一个太阳连续光照500 h后,电池效率仍可保持在初始效率的81.9%（氮气环境,温度40 ℃）。

Abstract

The effects of polysodium p-styrene sulfonate（PSS） on wide-bandgap perovskite films and devices are studied in this paper. The research of this paper shows that use of a polypodium PSS passivator can effectively improve the morphology, increase the crystallinity, and reduce the defect density of perovskite films, which are beneficial to inhibit the phase segregation of mixed-halide wide-bandgap perovskite films. Finally, the J-V test results show that the performance of the optimized wide-bandgap perovskite solar cell is significantly improved. In the wide bandgap perovskite solar cell with PSS, the open circuit voltage is up to 1.23 V, and the efficiency is up to 20.54%. Moreover, the stability of the encapsulated device is significantly improved after phase segregation being inhibited, and the efficiency remains 81.9% of the initial efficiency under continuous illumination for 500 h （N₂ environment, 40 ℃）.

导出引用

李卓芯, 冯旭铮, 陈香港, 刘雪朋, 戴松元, 蔡墨朗. 添加剂提高宽带隙钙钛矿太阳电池的性能[J]. 太阳能学报. 2024, 45(4): 30-35 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1386

Li Zhuoxin, Feng Xuzheng, Chen Xianggang, Liu Xuepeng, Dai Songyuan, Cai Molang. ADDITIVE IMPROVES PERFORMANCE OF WIDE BANDGAP PEROVSKITE SOLAR CELLS[J]. Acta Energiae Solaris Sinica. 2024, 45(4): 30-35 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1386

中图分类号： TM914.4

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