Effective recombination velocity of textured surfaces

Effective recombination velocity of textured surfaces
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纹理表面的有效复合速度

DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
Hui Yang
Hui Yang
中科院分区:
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文献类型:
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作者:
Kanglin Xiong;Shulong Lu;D. Jiang;J. Dong;Hui Yang

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表面织构化是提高光电子器件对光吸收的有效方法,但同时也会增大比表面积,加剧表面复合。为了评价织构结构对表面复合的影响,定义了一种有效表面复合速度,并假定该复合速度在平面上具有等效复合效应。在数值计算和解析计算的基础上,分析了有效表面复合与图案几何形状、表面复合速度和扩散长度的关系。
Surface texturization is an effective way to enhance the absorption of light for optoelectronic devices but it also aggravates the surface recombination by enlarging the surface area. In order to evaluate the influence of texture structures on the surface recombination, an effective surface recombination velocity is defined which is assumed to have an equivalent recombination effect on a flat surface. Based on numerical and analytical calculation, the dependences of effective surface recombination on the pattern geometry, the surface recombination velocity, and the diffusion length are analyzed.