采用H_2Se气体对铜-铟-镓金属预制层进行硒化制备铜铟镓硒(CIGS)光吸收层,研究硒化过程中温度对CIGS结晶质量及光学特性的影响。400~500℃单一温度硒化制作的CIGS薄膜的表面平整性较差,存在颗粒状聚集物。在硒化前引入200℃低温预处理过...采用H_2Se气体对铜-铟-镓金属预制层进行硒化制备铜铟镓硒(CIGS)光吸收层,研究硒化过程中温度对CIGS结晶质量及光学特性的影响。400~500℃单一温度硒化制作的CIGS薄膜的表面平整性较差,存在颗粒状聚集物。在硒化前引入200℃低温预处理过程,可提高CIGS薄膜表面的平整性和致密性。在400℃硒化后导入500℃高温热处理过程可提高CIGS的结晶质量并改善Ga元素掺入的均匀性。光学特性测量显示,优化硒化温度可降低CIGS薄膜的缺陷态,从而提高Ga元素在薄膜中的掺入效果,CIGS薄膜的光学带隙可达1.14 e V。利用CIGS薄膜制备的太阳电池光电转换效率达13.1%,开压为519 m V,有效面积为0.38 cm^2。展开更多
N-(5-phenylseleno)pentyl succinimide 1, C15H19NO2Se (Mr = 324.27), was prepared by treating Br(CH2)5SePh with potassium succinimide. Its crystal structure has been determined by X-ray single-crystal diffraction. The c...N-(5-phenylseleno)pentyl succinimide 1, C15H19NO2Se (Mr = 324.27), was prepared by treating Br(CH2)5SePh with potassium succinimide. Its crystal structure has been determined by X-ray single-crystal diffraction. The crystal of 1 belongs to monoclinic system, space group P21/c with the crystal cell parameters: a = 18.018(6), b = 5.980(2), c = 14.682(5) ? = 109.977(6)? V = 1486.7(9) 3, Z = 4, Dc = 1.449 g/cm3, (MoK? = 2.523 mm-1, F(000) = 664,the final R = 0.0302 and wR = 0.0666 for 2623 independent observed reflections with I > 2(I). Structure analyses revealed that there exist strong nonclassical hydrogen bonds (CH…O).展开更多
文摘采用H_2Se气体对铜-铟-镓金属预制层进行硒化制备铜铟镓硒(CIGS)光吸收层,研究硒化过程中温度对CIGS结晶质量及光学特性的影响。400~500℃单一温度硒化制作的CIGS薄膜的表面平整性较差,存在颗粒状聚集物。在硒化前引入200℃低温预处理过程,可提高CIGS薄膜表面的平整性和致密性。在400℃硒化后导入500℃高温热处理过程可提高CIGS的结晶质量并改善Ga元素掺入的均匀性。光学特性测量显示,优化硒化温度可降低CIGS薄膜的缺陷态,从而提高Ga元素在薄膜中的掺入效果,CIGS薄膜的光学带隙可达1.14 e V。利用CIGS薄膜制备的太阳电池光电转换效率达13.1%,开压为519 m V,有效面积为0.38 cm^2。
基金This work was supported by the NNSFC (No. 29832030)
文摘N-(5-phenylseleno)pentyl succinimide 1, C15H19NO2Se (Mr = 324.27), was prepared by treating Br(CH2)5SePh with potassium succinimide. Its crystal structure has been determined by X-ray single-crystal diffraction. The crystal of 1 belongs to monoclinic system, space group P21/c with the crystal cell parameters: a = 18.018(6), b = 5.980(2), c = 14.682(5) ? = 109.977(6)? V = 1486.7(9) 3, Z = 4, Dc = 1.449 g/cm3, (MoK? = 2.523 mm-1, F(000) = 664,the final R = 0.0302 and wR = 0.0666 for 2623 independent observed reflections with I > 2(I). Structure analyses revealed that there exist strong nonclassical hydrogen bonds (CH…O).
