玻璃粉对PERC太阳能电池铝电极结构和性能的影响  

Effect of Glass Frits on Structure and Properties of Aluminum Electrode of PERC Solar Cells

作　　者：侯晨阳 付明[1,2] 刘雷 尹光[1,2] 汪小红 吕文中[1,2] 范琳[3] HOU Chenyang;FU Ming;LIU Lei;YIN Guang;WANG Xiaohong;LYU Wenzhong;FAN Lin(School of Optics and Electronics Information,Huazhong University of Science and Technology,Wuhan 430074,China;Ministry of Education Key Laboratory of Information Materials,Wuhan 430074,China;Wuhan Sometal Electronic Materials Corporation Limited,Wuhan 430206,China)

机构地区：[1]华中科技大学光学与电子信息学院,武汉430074 [2]华中科技大学教育部信息功能材料重点实验室(B类),武汉430074 [3]武汉硕美特电子材料有限公司,武汉430206

出　　处：《材料导报》2020年第22期22005-22009,共5页Materials Reports

基　　金：国家自然科学基金(51302093)。

摘　　要：PERC电池在传统电池的基础上增加了背面钝化层和激光开口并形成了局域铝背场电极,电池效率较传统电池提高了约1%,是近期太阳能电池的研究热点之一。铝电极浆料对PERC电池的性能有直接的影响,本工作研究了V-B-Si、Pb-B-Si和Bi-B-Zn三种体系玻璃对PERC电池性能和外观的影响。研究结果表明:相比于Pb-B-Si和Bi-B-Zn玻璃,采用V-B-Si玻璃铝浆制备的PERC电池表现出较好的性能,当V-B-Si(V 2O 5、B 2O 3、SiO 2)的质量比为25∶10∶15时,激光开口处的铝膜填充率较高,EL图像较亮,电池效率较高,铝背场外观性能(附着和水煮性能)较好。采用扫描电镜(SEM)、X射线能量色散光谱仪(EDS)分析了PERC电池局域铝电极的微观结构,通过铝浆玻璃粉的热特性调控,制备了高效率的太阳能电池。PERC solar cell is one of the important issues in solar cells,which has local aluminum back surface field electrodes by adding the back surface passivation layer and laser opening in conventional solar cells,thus its efficiency increased about 1%.PERC cell’s performance is directly affected by aluminum electrode paste,so the work studied the effects of the thermal properties of V-B-Si,Pb-B-Si and Bi-B-Zn glass frits on the performance and appearance of PERC cells.Then the results show that the PERC cells prepared by V-B-Si glass paste has better performance than Pb-B-Si and Bi-B-Zn glass.When the weight percentage of V-B-Si(V 2O 5,B 2O 3,SiO 2)is 25∶10∶15,the filling rate of the aluminum film at the laser opening is higher,the EL image is brighter and the cell efficiency is higher and the aluminum back surface field appearance perfor-mance(adhesion and boiling water cooking performance)is better.In addition the microstructure of the local aluminum electrode of the PERC cell was analyzed by scanning electron microscopy(SEM)and X-ray energy dispersive spectroscopy(EDS),the high-efficiency solar cell was prepared by using the aluminum paste with glass frits of appropriate thermal characteristics.

关 键 词：PERC电池 玻璃粉 电池性能 局域铝电极 

分 类 号：TM914.41[电气工程—电力电子与电力传动]