CAJ | 학술논문

制备了一种新型的染料敏化太阳电池的光阳极,该电极由溶剂合成的具有高比表面积和良好光散射特性的ZnO介孔微球组成.采用X射线衍射、扫描电子显微镜、能谱仪及N2吸附脱附等手段,分析了介孔ZnO微球的结构和形貌.所得介孔微球尺寸在亚微米范围,比表面积约为50m~2·g~(-1).将ZnO介孔微球成功应用到染料敏化太阳电池中,当光阳极为3μm时,组成的原型器件的短路电流密度约为4.5mA·m~(-2),开路电压约为602mV,转换效率可达1.28%.研究结果表明,ZnO介孔微球是一种优异的染料敏化太阳电池的光阳极材料.
제비료일충신형적염료민화태양전지적광양겁,해전겁유용제합성적구유고비표면적화량호광산사특성적ZnO개공미구조성.채용X사선연사、소묘전자현미경、능보의급N2흡부탈부등수단,분석료개공ZnO미구적결구화형모.소득개공미구척촌재아미미범위,비표면적약위50m~2·g~(-1).장ZnO개공미구성공응용도염료민화태양전지중,당광양겁위3μm시,조성적원형기건적단로전류밀도약위4.5mA·m~(-2),개로전압약위602mV,전환효솔가체1.28%.연구결과표명,ZnO개공미구시일충우이적염료민화태양전지적광양겁재료.
A novel ZnO photoanode with high specific surface area and good light scattering ability was fabricated for dye-sensitized solar cells(DSSCs). The photoanode comprised of mesoporous ZnO microspheres which were prepared by a solvothermal process. The structures and morphologies of ZnO microspheres were measured and confirmed by means of x-ray diffraction(XRD), scanning electron microscopy(SEM), energy dispersive spectrum(EDS), and multi-point Brunauer-Emmett-Teller(BET) analysis. ZnO microspheres are in sub-micrometer scale and have BET specific surface area of ～50m~2·g~(-1). Furthermore, a～3μm thick photoanode made from ZnO microspheres resultes in a preliminary short-circuit current density(J_(sc)) of ～4.5mA·~(-2) with an open-circuit voltage(V_(oc)) of ～602mV and a conversion efficiency of 1.28% in DSSCs. All these suggest that mesoporous ZnO microspheres can be an alternative and feasible photoanode material for DSSCs.