Method for reducing light-induced attenuation defect of solar cell module
The invention discloses a method for reducing the light-induced attenuation defect of a solar cell module. The method comprises the step that a solar cell module after a string welding process is placed in a device cavity with a temperature of 150 DEG C to 300 DEG C and light intensity of 20KW/m to...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
11.02.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a method for reducing the light-induced attenuation defect of a solar cell module. The method comprises the step that a solar cell module after a string welding process is placed in a device cavity with a temperature of 150 DEG C to 300 DEG C and light intensity of 20KW/m to 80KW/m and irradiated for 5s to 30s. According to the invention, the solar cell after the string welding process is irradiated under specific temperature and light conditions; the defects of a boron-oxygen (B-O) complex are deactivated by exciting hydrogen atoms in the cell, thereby eliminating the composite center; and the photoelectric conversion efficiency of the cell is restored or improved.
本发明公开了一种降低太阳能电池组件光致衰减缺陷的方法,包括将完成串焊工序的太阳能电池组件放置在温度为150℃-300℃,光照强度20KW/㎡-80KW/㎡的设备腔体中照射5s-30s。本发明通过将串焊工艺后的太阳能电池片放置在特定的温度、光照条件下照射,通过激发电池片中的氢原子钝化硼氧(B-O)复合体缺陷,从而消除复合中心,使得电池片光电转化效率得到恢复或提升。 |
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Bibliography: | Application Number: CN201910923660 |