平带太阳电池的内量子效率

上海大学学报(自然科学版)

平带太阳电池的内量子效率

杨文继，马忠权，唐星，赵文刚，徐飞，王德明，赵占霞

上海大学理学院，上海 200444

收稿日期:2006-11-10 修回日期:1900-01-01 出版日期:2008-02-28 发布日期:2008-02-28
通讯作者: 马忠权

Internal Quantum Efficiencies of Flat-Band Solar Cells

YANG Wen-ji, MA Zhong-quan, TANG Xing, ZHAO Wen-gang, XU Fei, WANG De-ming, ZHAO Zhan-xia

College of Sciences, Shanghai University, Shanghai 200444, China

Received:2006-11-10 Revised:1900-01-01 Online:2008-02-28 Published:2008-02-28
Contact: MA Zhong-quan

摘要/Abstract

摘要： 该文对平带同质结太阳电池内各空间区域对内量子效率的贡献，以及总的内量子效率进行了数值计算和分析，发现太阳电池的表面复合速率和各区域宽度均对内量子效率有重要影响.而对绒面结构太阳电池的内量子效率和物理参数关系的理论推导，通过数学变换和高阶近似后所得结果，可归结为与平带同质结相同的形式.不同的是，绒面在显著提高外量子效率的同时，可使电池在中长波范围的内量子效率略有提高，这对于改善太阳电池的光电转换性能起着非常重要的作用.所得结论对设计太阳电池及其表面结构具有指导意义.

关键词: 光谱响应, 内量子效率, 平带, 绒面, 同质结

Abstract:

The total internal quantum efficiency (IQE) of a flat-band p-n homo-junction solar cell is calculated, and contributions of the separate parts analyzed. It has been found that both the cell part widths and the surface recombination velocities have significant influence on the IQEs. With mathematical transformation and approximation, the differential equation of the minority carrier density in a textured cell takes the same form as the flat cell. What makes differences is that texturization slightly enhances the IQEs for photons with longer wave lengths while notably increasing external quantum efficiency. Therefore it is important for the solar cell’s good performance. The results are of technical importance in designing solar cells and their surface structures.

Key words: homojunction, internal quantum efficiency, spectral response, texturization, flat band

中图分类号:

杨文继;马忠权;唐星;赵文刚;徐飞;王德明;赵占霞. 平带太阳电池的内量子效率[J]. 上海大学学报(自然科学版).

YANG Wen-ji;MA Zhong-quan;TANG Xing;ZHAO Wen-gang;XU Fei;WANG De-ming;ZHAO Zhan-xia. Internal Quantum Efficiencies of Flat-Band Solar Cells[J]. Journal of Shanghai University（Natural Science Edition）.