Highly ordered ZnO nanotube arrays were prepared on the indium-tin oxide( ITO) glass substrate by a electrochemical method. Sequently, Cu2O nanocrystals were electrodeposited onto the walls of the ZnO nanotube arrays to form the designed Cu2O/ZnO 1D core-shell nanostructure. Cu2O shell of different thickness was obtained by controlling the deposition coulomb of the Cu2O nanocrystals. Scanning electron microscopy (SEM), transmission electron microscopy(TEM) and X-ray diffraction(XRD) were used to characterize the samples to confirm the formation of the designed nanostructures. A solid state solar cell with the designed Cu2O/ZnO nanostructure as photoelectrode was fabricated. The effects of the Cu2O shell thickness on the ab-sorption and photoelectrochemical properties of the photoeletrode, as well as the photovoltaic performance of the designed solar cell, were investigated. The Au film thickness of the opposite electrode was also optimized. An energy conversion efficiency of 0.013% was obtained with the solar cell based on the photoelectrode of Cu2O(1.5 C)/ZnO and the opposite electrode of Au(20-25 min, 4 mA)/Cu.%采用电化学方法在铟锡氧化物( ITO )导电玻璃基底上制备了高度有序的ZnO纳米管阵列，然后在ZnO纳米管阵列上电化学沉积Cu2 O纳米晶颗粒，获得了一维有序Cu2 O/ZnO核壳式纳米阵列结构，通过控制Cu2 O纳米晶的沉积电量得到不同厚度的Cu2 O壳层，并对该核壳式纳米阵列的形貌和结构进行了分析.以Cu2 O/ZnO一维核壳式纳米阵列结构为光电极组装全固态纳米结构太阳电池，研究了Cu2 O壳层厚度对光电极光吸收性能、光电性能以及组装电池光伏性能的影响，优化了电池中对电极材料的喷金厚度.结果表明，以Cu2 O沉积电量为1.5 C的Cu2 O/ZnO为光活性层，以4 mA电流下真空镀金20~25 min的铜基底为对电极组装的简易太阳电池最高可获得0.013%的光电转换效率.
展开▼
