光学间隔层对聚合物太阳能电池光学性能的影响  

Effect of Optical Spacer Thickness on Characteristics of Polymer Solar Cells: A Theoretical Study

作　　者：陈书汉[1] 罗劲明[1] Chen Shuhan;Luo Jinmin(School of Physics and Optical Information Sciences, Jiaying University, Meizhou 514015, China)

机构地区：[1]嘉应学院物理与光信息科技学院,梅州514015

出　　处：《真空科学与技术学报》2017年第11期1113-1116,共4页Chinese Journal of Vacuum Science and Technology

摘　　要：利用传输矩阵法系统研究了光学间隔层(ZnO)对聚合物太阳能电池光学性能的影响。研究表明,光学间隔层能有效调控活性层内部的光场分布并能提高聚合物太阳能电池的工作效率。定量地研究了活性层内部在不同间隔层厚度条件下的光电场分布和吸收光谱,当活性层厚度介于50 nm与150 nm之间时间隔层厚度的变化对短路电流密度影响较为明显。通过比较不同间隔层厚度所产生的短路电流密度,得出间隔层ZnO厚度不宜超过10 nm。The photoelectric field distribution and optical absorption in the polymer solar cells（ PSCs）,comprising ITO coated glass,polymerelectron transport layer,ZnO hole transport layer and Al anode,was mathematically modeled,theoretically analyzed in transfer matrix method（ TMM）. The influence of the optical spacer,specifically the ZnO layer thickness,on the photoelectric field profile and optical absorption in the polymer active layer was calculated. The calculated results show that the ZnO layer thickness significantly affects the properties of PSCs. To be specific,when it comes to the PSCs fabricated with a 50 ~ 150 nm thick polymer active layer,as the ZnO layer thickness increases,theshort-circuit current densitychanges roughly in an increase-decrease manner,peaking at a ZnO layer thickness of 10 nm. Possible mechanisms responsible for the conversion efficiency optimization were tentatively discussed in a thought provoking way.

关 键 词：传输矩阵法 有机太阳能电池 光学间隔层 短路电流密度 

分 类 号：O475[理学—半导体物理]