CAJ | 학술논문

首先采用水热法制备TiO2纳米棒光阳极，并引入Au@SiO2纳米颗粒对其性能进行改善。结果表明， Au@SiO 2纳米颗粒的引入虽然增强了光吸收，但同时减少了染料在TiO 2纳米棒上的吸附量，反而导致了电池器件性能的下降。因此，在TiO 2纳米棒/Au@SiO 2纳米颗粒结构上进一步生长一层TiO 2钝化层：一方面可增加染料吸附量；另一方面有利于减少电荷复合。基于这种光阳极组装的染料敏化太阳能电池获得了2.34%的光电转换效率，较单一TiO 2纳米棒光阳极组装的电池效率提高了60%。
수선채용수열법제비TiO2납미봉광양겁，병인입Au@SiO2납미과립대기성능진행개선。결과표명， Au@SiO 2납미과립적인입수연증강료광흡수，단동시감소료염료재TiO 2납미봉상적흡부량，반이도치료전지기건성능적하강。인차，재TiO 2납미봉/Au@SiO 2납미과립결구상진일보생장일층TiO 2둔화층：일방면가증가염료흡부량；령일방면유리우감소전하복합。기우저충광양겁조장적염료민화태양능전지획득료2.34%적광전전환효솔，교단일TiO 2납미봉광양겁조장적전지효솔제고료60%。
TiO2 nanorods photoanode was prepared by hydrothermal method and first improved by introducing the Au@SiO2 nanoparticles. The results show that the introduction of Au@SiO2 nanoparticles though enhances light absorption, it reduces the amount of dye adsorbed on TiO2 nanorods, leading to a degradation in DSSC performance. Therefore, a TiO2 passivation layer was further grown on the surface of TiO2 nanorods/Au@SiO2 nanoparticles. This is conducive to adsorption of dyes and reduction of the charge recombination. The DSSC based on the improved photoanode is found with photoelectric transformation efficiencyη of 2.34%, which shows an obvious enhancement of 60% compared to TiO2nanorods-based solar cell.