A high-Performance Poly (ethylene ozide)/Poly (ether urethane)/Modified SiO2 hybrid Nanocomposite Electrolyte for Solid-State Dye-sensitized Solar Cells
1.Introduction Dye-sensitized solar ceUs(DSSCs) seem to be a low-cost alternative to conventional solid-state photovoltaic cells since they were first reported by Gr(a)tzel et al1. All-solid-state polymer electrolytes have been studied broadly for their potential applications in long-term stable DSSCs. Among all the polymer electrolytes materials, poly(ethylene oxide) (PEO) has been widely investigated for use in DSSCs due to its chemical stability and excellent solvating ability for lithium salts2. However, PEO tends to crystallize below 60℃ resulting in the poor ion transport of polymer electrolytes. Thus there have been various approaches to improve the room-temperature ionic conductivity of PEO such as the employment of other polymer material and inorganic nano particles to prevent crystal formation. Poly (ether urethane) (PEUR) is a polymer with outstanding adhesive properties which could enhance the interracial contact of the semiconductor/solid-state electrolyte/counter electrode. And the ethylene oxide chain in the PEUR molecular structure could spin freely leading to the room-temperature flexible property, which could prevent the crystallization of PEO efficiently. The crystallization can be further restrained by the incorporation of nano filler and thus improve the ionic conductivity.
dye-sensitized solar cells all-solid-state electrolyte poly (ether urethane) poly (ethylene ozide) nanoeomposite
Yanfang Zhou Wanchun Xiang Shujing Feng Xiaowen Zhou Yuan Lin Shibi Fang
CAS Key Laboratory of Photochemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing 1001 CAS Key Laboratory of Photochemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing 1001
国际会议
江苏镇江
英文
243-244
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）