Umar Ahmad, Ibrahim Ahmed A
Department of Chemistry, Faculty of Sciences and Arts, Najran University, Najran University, P.O. Box 1988, Najran, 11001, Kingdom of Saudi Arabia.
J Nanosci Nanotechnol. 2018 May 1;18(5):3697-3701. doi: 10.1166/jnn.2018.14657.
Herein, we report a facile synthesis, characterization and dye sensitized solar cell (DSSC) application of flower-shaped ZnO nanostructures. The flower-shaped ZnO nanostructures were synthesized by low-temperature hydrothermal process and characterized in detail by several techniques. The detailed morphological studies confirmed that the flower-shaped structures are formed by the accumulation of several nanoneedles which are axially arranged through their bases in a special fashion that they made flower-like morphologies. The compositional, structural and optical characterizations revealed that the synthesized flowers possess high purity, well-crystallinity with the wurtzite hexagonal phase and good optical properties. The synthesized flower-shaped ZnO nanostructures were used as photoanode to fabricate DSSC which attained a reasonable solar to electrical conversion efficiency of ~1.1%, open-circuit current (VOC) of 0.611 V, short circuit current (JSC) of 3.53 mA/cm2 and fill factor (FF) of 0.51.
在此，我们报道了花状氧化锌纳米结构的简便合成、表征及其在染料敏化太阳能电池（DSSC）中的应用。花状氧化锌纳米结构通过低温水热法合成，并采用多种技术进行了详细表征。详细的形态学研究证实，花状结构是由几根纳米针堆积而成，这些纳米针通过其基部以特殊方式轴向排列，形成了花状形态。成分、结构和光学表征表明，合成的花具有高纯度、纤锌矿六方相的良好结晶性和良好的光学性能。合成的花状氧化锌纳米结构用作光阳极来制备DSSC，其实现了约1.1%的合理光电转换效率、0.611 V的开路电压（VOC）、3.53 mA/cm2的短路电流（JSC）和0.51的填充因子（FF）。
