Facile preparation of titanium dioxide nano-capsule arrays used as photo-anode for dye sensitized solar cells
Facile preparation of titanium dioxide nano-capsule arrays used as photo-anode for dye sensitized solar cells
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DOI：
10.1016/j.apsusc.2015.04.083
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发表时间：
2015-08
影响因子：
6.7
通讯作者：
Penglei Su;Hongyi Li;Jinshu Wang;Junshu Wu;Bingxin Zhao;Wang Fei
中科院分区：
文献类型：
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作者：
Penglei Su;Hongyi Li;Jinshu Wang;Junshu Wu;Bingxin Zhao;Wang Fei
为了提高二氧化钛（TiO 2）纳米管阵列在染料敏化太阳能电池（DSSC）中的性能，采用液相沉积法（LPD）将TiO 2纳米颗粒植入到TiO 2纳米管（TNT）中，制备了TiO 2纳米胶囊阵列（TNCP）。结果表明，纳米TiO 2颗粒沿着壁均匀分布，其晶粒尺寸约为5-10 nm。所得TNCP的比表面积和表面能分别从27.1（纯TNT）增加到33.4 m2/g和从67.7（纯TNT）增加到76.4 mJ/m2。当用作DSSC的光阳极时，TNCP显示出更高的能量转换效率，是纯TNT的1.7倍。因此，本工作为改善TNT在DSSC上的性能提供了一种有效的策略，这种DSSC可以大规模地组装在金属基底上。
To improve titanium dioxide (TiO2) nanotube arrays’ performance on dye sensitized solar cells (DSSCs), TiO2nano-capsule arrays (TNCP) have been designed and prepared by planting TiO2nanoparticles into TiO2nanotube (TNT) using a facile liquid phase deposition (LPD) route which does not require any special equipment and both improve the specific surface area and surface energy of TNT at low temperature. It has been found that TiO2nanoparticles are homogeneously distributed along the wall of TNT and their crystal size is calculated to be 5–10 nm. The obtained TNCP's specific surface area and surface energy have been increased from 27.1 (for pure TNT) to 33.4 m2/g and from 67.7 (for pure TNT) to 76.4 mJ/m2, respectively. When used as photo-anodes of DSSCs, TNCP shows higher energy conversion efficiency, which is 1.7 times that of pure TNT. Therefore, the present work provides one effective strategy to better TNT's performance on DSSCs, which can be assembled on metal substrate in large scale.