Flexible Si/PEDOT：PSS hybrid solar cells

作     者：Shuxin Li Zhibin Pei Fei Zhou Ying Liu Haibo Hu Shulin Ji Changhui Ye 

作者机构：AnhuiKeyLaboratoryofNanomaterialsandTechnologyandKeyLaboratoryofMaterialsPhysicsInstituteofSolidStatePhysicsChineseAcademyofSciencesHefei230031China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2015年第8卷第10期

页      面：3141-3149页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Acknowledgements This work was supported by the National Basic Research Program of China (973 Program  No. 2011CB302103)  National Natural Science Foundation of China (Nos. 11274308 and 21401202)  the Hundred Talent Program of the Chinese Academy of Sciences  and the CAS/SAFEA International Partnership Program for Creative Research Teams 

主　　题：flexible devices hybrid solar cells micro-pyramid flexing test 

摘      要：Si hybrid solar cells have attracted tremendous research attention in recent years because of their low production costs and high performance. However, flexible Si hybrid solar cells have rarely been reported owing to the difficulty of fabricating single-crystalline Si with good flexibility. In this study, we fabricated flexible Si/PEDOT：PSS hybrid solar cells with micro-pyramid-structured Si light absorbers using a facile approach. Compared with planar flexible hybrid solar cells with a power-conversion efficiency of 4%, solar cells with micro-pyramid-structured Si light absorbers have a higher efficiency of 6.3%. External quantum efficiency and electrochemical impedance spectroscopy measurements revealed that the solar cells with micro-pyramid-structured Si light absorbers exhibited a pronounced light-harvesting enhancement in the spectra region of 400-1,000 nm and had a smaller series resistance and larger recombination resistance compared with the planar cells, yielding a higher efficiency. Additionally, in mechanical-bending tests, the flexible solar cells with micro-pyramid-structured Si light absorbers exhibited an excellent performance stability after bending for 600 cycles. Our findings lay the foundation for the real-world applications of flexible Si/PEDOT：PSS hybrid solar cells in next-generation portable electronics.