聚乙烯亞胺對ZnO納米線陣列膜的形貌和光電性能的影響

Effect of polyethylenimine on morphology and photovoltaic property of ZnO nanowire array films

摘要: 采用X射線衍射儀、投射電鏡儀和掃描電鏡儀等測試手段,系統地研究了不同聚乙烯亞胺(PEI)濃度對ZnO納米線陣列膜的形貌、線密度和尺寸的影響及ZnO納米線陣列膜的光電性能.研究結果表明,在PEI濃度從3.2 mmol·L^-1變化到9.3 mmol·L^-1所制備的所有ZnO納米線陣列膜中,使用7.3 mmol·L^-1PEI濃度合成的ZnO納米線陣列膜,制成染料敏化太陽能電池后獲得0.66%的最高的光電轉換效率.

Abstract: The effect of polyethylenimine(PEI) concentration on the morphology,wire density and size of ZnO nanowire arrays was systematically studied by X-ray diffraction(XRD),transmission electron microscopy(TEM) and scanning electron microscope(SEM).The photovoltaic properties of ZnO nanowire array films were also investigated.It is demonstrated that,for a ZnO nanowire array film obtained from 7.3 mmol·L^-1 PEI,an energy conversion efficiency of about 0.66% was obtained,which is the highest for ZnO nanowire array films prepared with different PEI concentrations from 3.2 mmol·L^-1 to 9.3 mmol·L^-1.