The Study On Anti-PID Performance Of High Efficiency Bifacial Cell Module

Abstract

This paper mainly studied the correlation between the PID attenuation of P/N type bifacial cell and the adhesive film. At present, with the development of glass-glass module technology and bifacial cell technology, glass-glass bifacial module is an important direction of industry development. Currently P type monocrystal PERC bifacial cell and N-type PERT bifacial cell are typical representatives of the bifacial technology. However, the PID problem of bifacial cell is more serious than single side cell. How to solve the bifacial cell PID problem has become a hot topic. We mainly studied the correlation between two different adhesive film (EVA&POE), and the anti-pid attenuation ability of P/N type bifacial cell. The influence of the water vapor transmission rate and resistivity of the adhesive film on PID attenuation of bifacial cell was studied. After PID 192h test, For P type, power decay of the front side is lower than rear side, while for N type cell, power dacy of the rear side is lower than front side. Both P&N type bifacial cell module with POE are much better than with EVA. For POE, recipe adjustment affects PID performance obviously.

Bifacial p-Type PERC Solar Cell with Efficiency over 22% Using Laser Doped Selective Emitter

“…In recent years, more photovoltaic companies and researchers [1,2] began research and production of silicon bifacial solar cells and passivated emitter and rear cells (PERC) based on p-type crystalline Si wafers are mainstream high-efficiency cell technology although most of the advanced cell technology has their own dual-generation properties. The performance of industrial-type screen-printed 6-inch PERC solar cells has been significantly increased over the past few years.…”