深入分析太阳能电池用CIGS薄膜的结构和光学特性
In-depth analysis of CIGS film for solar cells, structural and optical characterization
摘要：
对梯度蚀刻的CuInGaSe2（CIGS）太阳能电池进行的空间分辨X射线衍射测量提供了关于吸收层中的应力和纹理深度分布的信息。CIGS层生长动力学的一个重要参数，在钼背接触的吸收层厚度依赖的应力进行了分析。晶粒的纹理化和多晶吸收层的质量与有意的组成梯度（带隙分级）相关。带隙梯度由空间分辨光致发光测量确定，并与组分和应变分布相关。
英文摘要：
Space-resolved X-ray diffraction measurements performed on gradient-etched CuInGaSe2 (CIGS) solar cells provide information about stress and texture depth profiles in the absorber layer. An important parameter for CIGS layer growth dynamics, the absorber thickness-dependent stress in the molybdenum back contact is analyzed. Texturing of grains and quality of the polycrystalline absorber layer are correlated with the intentional composition gradients (band gap grading). Band gap gradient is determined by space-resolved photoluminescence measurements and correlated with composition and strain profiles.
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