摘要
研究背面结构对铝背发射极n型单晶硅太阳电池的影响,提出背面抛光结构铝背发射极n型单晶硅太阳电池的制备方法。使用少子寿命测试仪、扫描电镜(SEM)、量子效率测试仪及太阳电池测试仪对电池的表面复合速率、微观结构、量子效率和电性能进行测定。结果表明:对铝背发射极n型单晶硅太阳电池,背面抛光结构优于背面金字塔绒面结构,背面抛光结构可降低电池背面的复合速率、改善p-n结质量、提高量子效率,使电池转换效率提高0.34%。
This study investigated the influence solar cell, and proposed polished rear structure of the rear structure for Al-alloyed rear emitter n-type mono-crystalline as a new manufacturing technology for Al-alloyed rear emitter n-type mono-crystalline solar cell. Surface recombination velocities, microstructure, quantum efficiency and electric properties of the cells were characterized using lifetime monitor, scanning electron microscopy （SEM）, quantum efficiency tester and solar cell measuring instrument, respectively. The results showed that the polished rear structure was better than the texture for Al-alloyed rear emitter n-type mono-erystalline solar cell. The polished structure reduced rear surface recombination velocity, improved the quality of p-n junction and the external quantum efficiency, resulting in an increase of the conversion efficiency by 0.34%.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第5期1148-1152,共5页
Acta Energiae Solaris Sinica
关键词
太阳电池
n型单晶硅
铝背发射极
抛光
solar cell
n-type mono-erystalline silicon
Al-alloyed rear emitter
polished
