Preparation and Properties of Perovskite Photovoltaic Cell Encapsulation Materials

doi:10.12422/j.issn.1006-396X.2023.05.009

Abstract

Abstract:

Perovskite photovoltaic cells are considered as the most promising third generation photovoltaic products due to their high photoelectric conversion efficiency and flexible processing while the high temperature encapsulation process of traditional encapsulation materials can hardly meet the demand of high performance of perovskite photovoltaic modules.In this paper, an adhesive film material by free radical co?polymerization process was successfully synthesized.Light transmission and bonding are characterized by infrared spectroscopy and tensile testing machine,confirming that the polymer is very suitable for chalcogenide photovoltaic cell encapsulation,and that the polymer can be effectively adhered to the chalcogenide solar cell and the outer layer of the glass at 80 ℃.The polymer is suitable for the encapsulation of chalcogenide photovoltaic cells.The photoelectric conversion efficiency of the encapsulated PSCs can reach 20.59%,and the encapsulated PSCs devices show good impact resistance.

Key words: Free radical polymerization, Perovskite photovoltaic cell, Photovoltaic building integrated, Encapsulation

摘要：

钙钛矿光伏电池具有光电转换效率高、可柔性加工等优势，被认为是最有应用前景的第三代光伏产品。传统封装材料的高温封装过程很难满足钙钛矿光伏组件高性能化的需求。以丙烯酸酯类单体为原料，通过自由基共聚合工艺，成功合成了一种适合钙钛矿光伏电池封装的胶膜材料；利用红外光谱、拉力试验机等对材料的结构、透光率和黏结特性等进行了表征。结果表明，该胶膜材料非常适合钙钛矿光伏电池的封装，可以在80 ℃实现对钙钛矿太阳能电池（PSCs）和外层玻璃的有效黏结；封装后PSCs光电转换效率可达20.59%，并且封装后的PSCs器件表现出良好的抗冲击性能。

关键词: 自由基聚合, 钙钛矿光伏电池, 光伏建筑一体化, 封装

CLC Number:

TQ152

Heming ZHAO, Liping CHEN, Qi WEI, Longjiao YU, Jiansong YANG, Fuqiang SHI, Shiwei WANG. Preparation and Properties of Perovskite Photovoltaic Cell Encapsulation Materials[J]. Journal of Petrochemical Universities, 2023, 36(5): 67-72.

赵鹤鸣, 陈丽萍, 魏奇, 于龙娇, 杨健松, 石富强, 王世伟. 钙钛矿光伏电池封装材料的制备与性能研究[J]. 石油化工高等学校学报, 2023, 36(5): 67-72.

Figures/Tables 9

Fig.1 Package structure of perovskite cells

Fig.2 Scheme of the adhesive shear strength test

Fig.3 FT?IR spectra of PAA?MA?BA

Fig.4 Light transmittance of PAA?MA?BA polymer with different AA mass fraction

Fig.5 Shear strength curves and stress?displacement curves of PAA?MA?BA polymer bonding glass with different AA mass fraction

Fig.6 Shear strength of PAA?MA?BA polymer with mass fraction 7% AA and perovskite layers

Fig.7 J?V curves of perovskite solar cells before and after encapsulation

Table 1 Photovoltaic performance parameters of perovskite solar cells

PSCs	J_sc/(mA $⋅$ cm^-2)	V_oc/V	F	P_CE/%
封装前	24.28	1.15	0.79	22.06
封装后	24.51	1.12	0.75	20.59

Table 1 Photovoltaic performance parameters of perovskite solar cells

PSCs	J_sc/(mA $⋅$ cm^-2)	V_oc/V	F	P_CE/%
封装前	24.28	1.15	0.79	22.06
封装后	24.51	1.12	0.75	20.59

Fig.8 Impact resistance test results

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