共发射极
材料科学
钝化
光电子学
表面粗糙度
母线
平面的
堆栈(抽象数据类型)
光学
复合材料
电气工程
图层(电子)
物理
工程类
计算机图形学(图像)
程序设计语言
计算机科学
作者
Huibin Tang,Shuai Ma,Yuezu Lv,Z.P. Li,Wei Shen
标识
DOI:10.1016/j.solmat.2020.110712
摘要
The bifacial p-type silicon (p-Si) passivated emitter and rear cells (PERCs) are predicted to dominate the industrial bifacial solar cells. In this work, we have investigated the impact of different rear surface morphologies on the electrical performance of bifacial PERCs with both five-busbar (5BB) and nine-busbar (9BB) grid design. The passivation and optical properties with differing rear surfaces are evaluated on semi-device structures. The depth of local aluminum back surface field is hardly affected by the rear surface morphology. The calculated efficiency loss analysis indicates that the negative electrical impact with enlarged rear surface area is more serious for rear side than that of front side. The batch conversion efficiency of 9BB bifacial PERCs increases by 0.2%–0.3% comparing to 5BB ones depending on the rear surface roughness. Consequently, a highest front-side average efficiency of 22.57%, with a champion efficiency of 22.75%, has been achieved for 9BB bifacial p-Si PERCs with a nearly planar rear surface. A highest bifaciality of 78.7% is realized for both 5BB and 9BB bifacial PERCs with the roughest rear surface. We have further simulated the relative enhancement of electric generation to compare the performance of bifacial PERCs in practical application.
科研通智能强力驱动
Strongly Powered by AbleSci AI