Well-aligned Ni Pt alloy counter electrodes for high-efficiency dye-sensitized solar cell applications  

作　　者：Zhibin Pang Yuanyuan Zhao Yanyan Duan Jialong Duan Qunwei Tang Liangmin Yu 

机构地区：[1]School of Materials Science and Engineering, Ocean University of China [2]Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China

出　　处：《Journal of Energy Chemistry》2019年第3期49-56,共8页能源化学（英文版）

基　　金：financial supports from the National Natural Science Foundation of China(21503202,61604143,51362031);Shandong Provincial Natural Science Foundation(JQ201714);and Fundamental Research Funds for the Central Universities(201762018)

摘　　要：Development of cost-effective and robust counter electrodes(CEs) is a persistent objective for highefficiency dye-sensitized solar cells(DSSCs). To achieve this goal, we present here the hydrothermal synthesis of well-aligned Ni Pt alloy CEs, which is templated by ZnO nanowires and nanosheets. The preliminary results demonstrate that Ni Pt alloy electrodes are featured by increased charge-transfer processes and electrocatalytic activity in comparison with expensive Pt CE, yielding power conversion efficiencies of 8.29% and 7.41% in corresponding DSSCs with Ni Pt nanowire and nanosheet alloy CEs, respectively. Additionally, the Ni Pt alloy CEs also display extraordinary dissolution-resistant ability when suffering longterm utilization in liquid-junction DSSCs.Development of cost-effective and robust counter electrodes(CEs) is a persistent objective for highefficiency dye-sensitized solar cells(DSSCs). To achieve this goal, we present here the hydrothermal synthesis of well-aligned Ni Pt alloy CEs, which is templated by ZnO nanowires and nanosheets. The preliminary results demonstrate that Ni Pt alloy electrodes are featured by increased charge-transfer processes and electrocatalytic activity in comparison with expensive Pt CE, yielding power conversion efficiencies of 8.29% and 7.41% in corresponding DSSCs with Ni Pt nanowire and nanosheet alloy CEs, respectively. Additionally, the Ni Pt alloy CEs also display extraordinary dissolution-resistant ability when suffering longterm utilization in liquid-junction DSSCs.

关 键 词：DYE-SENSITIZED solar cell COUNTER electrode ALLOY ELECTROCATALYST 

分 类 号：O4[理学—物理]