高贵金属 nanoparticles 例如黄金,银和铜,广泛地被合并了到充当一条轻收获的天线并且通过他们散布的光或局部性的表面电浆子回声效果提高光电流的 photoelectronic 设备。这里,这篇文章介绍了调查进金 nanocrystals 的使用在 TiO 认识到提高电浆子的光电流产生 < 潜水艇 class= “ a-plus-plus ” > 2 基于 nanorod 的量敏化点的太阳能电池(QDSSC ) 。由介绍金 nanocrystals ,电线走火电流密度( J <候补选手class=“ a-plus-plus ”> QDSSC 的 sc )被提高超过 10 ?从 7.788~8.574 的%?妈/厘米<啜class=“ a-plus-plus ”> 2 由于到 photoanode 的从金 nanocrystals 的热电子的直接注射。以便证实如此的结论,合成 Au/TiO < 潜水艇 class= “ a-plus-plus ” > 2 nanostructure 也被制作。确实,热电子注射结果 ~ 的光电流密度 5 ? 妈 / 厘米 < 啜 class= “ a-plus-plus ” > 2 清楚地在可见轻照耀下面被观察。
The noble metal nanoparticles, such as gold, silver and copper, has been widely incorporated into the photoelectronic devices acting as a light-harvesting an- tenna and enhancing photocurrents through their light scattering or localized surface plasmon resonance effects. Here, this article presented the investigations into the use of gold nanocrystals to realize the plasmon-enhanced photocurrent generation in TiO2 nanorod-based quantum dots-sensitized solar cells (QDSSCs). By introducing the gold nanocrystals, the short-circuit current density (Jsc) of QDSSCs was enhanced more than 10 % from 7.788 to 8.574 mA/cm^2 due to the direct injection of hot electrons from the gold nanocrystals to the photoanode. In order to confirm such conclusion, composite Au/TiO2 nanostructure was also fabricated. Indeed, the hot electrons injection resulted photocurrent density of ~5 mA/cm^2 was clearly observed under the visible light irradiation.