Effect of Glass Frits on Structure and Properties of Aluminum Electrode of PERC Solar Cells
HOU Chenyang1,2, FU Ming1,2, LIU Lei1,2, YIN Guang1,2, WANG Xiaohong1,2, LYU Wenzhong1,2, FAN Lin3
1 School of Optics and Electronics Information, Huazhong University of Science and Technology, Wuhan 430074, China 2 Ministry of Education Key Laboratory of Information Materials, Wuhan 430074, China 3 Wuhan Sometal Electronic Materials Corporation Limited, Wuhan 430206, China
Abstract: 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 (V2O5,B2O3,SiO2) 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.
侯晨阳, 付明, 刘雷, 尹光, 汪小红, 吕文中, 范琳. 玻璃粉对PERC太阳能电池铝电极结构和性能的影响[J]. 材料导报, 2020, 34(22): 22005-22009.
HOU Chenyang, FU Ming, LIU Lei, YIN Guang, WANG Xiaohong, LYU Wenzhong, FAN Lin. Effect of Glass Frits on Structure and Properties of Aluminum Electrode of PERC Solar Cells. Materials Reports, 2020, 34(22): 22005-22009.
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2020, Vol. 34 
