Si基薄膜叠层太阳电池中光的优化分配  

Light management in thin film a-Si/μc-Si tandem solar cells

作　　者：陈培专[1,2,3] 蔡宁[1,2,3] 陈新亮 韩晓艳[1,2,3] 张德坤[1,2,3] 袁育杰 王烁[1,2,3] 熊绍珍 赵颖[1,2,3] 耿新华 

机构地区：[1]南开大学光电子薄膜器件与技术研究所 [2]光电子薄膜器件与技术天津市重点实验室 [3]光电信息技术科学教育部重点实验室,天津300071

出　　处：《光电子．激光》2009年第5期595-600,共6页Journal of Optoelectronics·Laser

基　　金：国家“973”计划资助项目(2006CB202602,2006CB202603);天津市国家科技计划配套资助项目(07QTPTJC29500)

摘　　要：以带有中间层的Si基薄膜叠层电池为研究对象,模拟了中间层对入射光在叠层电池中传播和分配的影响,对中间层的材料选择提出了优化方案,并以ZnO作中间层,实验验证了其对入射光的管理作用。模拟结果表明,引入适当的中间层,既能提高短波段的反射率,又能明显增加长波段光的透过率。加入ZnO中间层,可使厚为200nm的顶部非晶硅(a-Si)电池的短路电流提高14.1%。The influence of interlayer on the transmittion and distribution of the incident light in a-Si/μc- Si tandem solar cells was simulated and realized in experiments. Simulation results indicated the scheme to choose the best interlayer materials in theory. An adequate interlayer could enhance the reflectance in short wavelength range as well as increase the transmittance in long wave range. Using ZnO as the inter- layer, we proved our calculation results and validated its light management effect in fact. Typical ZnO interlayer increased apparently the short current density of the top cell by 14. 1%.

关 键 词：非晶硅/微晶硅(a-Si/μc-Si)叠层太阳电池 中间层 光学模拟 吸收率 

分 类 号：O484[理学—固体物理]