Integrated System of Solar Cells with Hierarchical NiCo2O4 Battery-Supercapacitor Hybrid Devices for Self-Driving Light-Emitting Diodes

作     者：Yuliang Yuan Yangdan Lu BeiEr Jia Haichao Tang Lingxiang Chen YuJia Zeng Yang Hou Qinghua Zhang Qinggang He Lei Jiao Jianxing Leng Zhizhen Ye Jianguo Lu 

作者机构：State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiangUniversityHangzhou310027People’s Republic of China Key Laboratory for Biomedical Engineering of Ministry of EducationCollege of Biomedical Engineeringand Instrument ScienceZhejiang UniversityHangzhou310027People’s Republic of China Shenzhen Key Laboratory of Laser EngineeringCollege of Optoelectronic EngineeringShenzhenUniversityShenzhen518060People’s Republic of China4College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027People’s Republic of China Ningbo Research InstituteZhejiang UniversityNingbo315100People’s Republic of China Ocean CollegeZhejiang UniversityZhoushan316021People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2019年第11卷第3期

页      面：92-103页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：the support of National Natural Science Foundation of China (Nos. 51702284 and 21878270) Zhejiang Provincial Natural Science Foundation of China (LR19B060002) the Startup Foundation for Hundred-Talent Program of Zhejiang University(112100-193820101/001/022) the support of Shenzhen Science and Technology Project of China (JCYJ20170412105400428) the support of Zhejiang Provincial Natural Science Foundation of China (LR16F040001) Open Project of Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University the support of Innovation Platform of Energy Storage Engineering and New Material in Zhejiang University (K19-534202-002) Provincial Innovation Team on Hydrogen Electric Hybrid Power Systems in Zhejiang Province 

主　　题：Integrated system NiCo2O4 Battery-supercapacitor hybrid devices Self-driving LED 

摘      要：An integrated system has been provided with a-Si/H solar cells as energy conversion device,NiCo2O4 battery-supercapacitor hybrid(BSH)as energy storage device,and light emitting diodes(LEDs)as energy utilization *** designing three-dimensional hierarchical NiCo2O4 arrays as faradic electrode,with capacitive electrode of active carbon(AC),BSHs were assembled with energy density of 16.6 Wh kg-1,power density of 7285 W kg-1,long-term stability with 100% retention after 15,000 cycles,and rather low *** NiCo2O4//AC BSH was charged to 1.6 V in 1 s by solar cells and acted as reliable sources for powering *** integrated system is rational for operation,having an overall efficiency of 8.1% with storage efficiency of 74.24%.The integrated system demonstrates a stable solar power conversion,outstanding energy storage behavior,and reliable light *** study offers a precious strategy to design a self-driven integrated system for highly efficient energy utilization.