Broadband plasmon photocurrent generation from Au nanoparticles/ mesoporous TiO2 nanotube electrodes
Broadband plasmon photocurrent generation from Au nanoparticles/ mesoporous TiO2 nanotube electrodes
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DOI：
10.1016/j.solmat.2015.02.021
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发表时间：
2015-03
影响因子：
6.9
通讯作者：
Xu Wu;A. Centeno;A. Centeno;Xuemei Zhang;Daniel Darvill;M. Ryan;D. Riley;N. Alford;F. Xie
中科院分区：
文献类型：
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作者：
Xu Wu;A. Centeno;A. Centeno;Xuemei Zhang;Daniel Darvill;M. Ryan;D. Riley;N. Alford;F. Xie
人们对等离子体诱导的太阳能电池增强越来越感兴趣，最近对使用贵金属纳米颗粒直接产生光电流越来越感兴趣，其中贵金属纳米颗粒在光谱的可视部分具有局部表面等离子体共振（LSPR）。在本文中，我们报告了宽带等离子体激元光电流的产生使用新型Au纳米粒子纳入介孔TiO 2纳米管电极。等离子体激元诱导的光电流，由于热电子被观察到在一个宽的波长范围内（~500至1000 nm）。入射光-电子转换效率（IPCE）的测量表明，在700-730 nm波长附近的最大光电流增强200倍。
There has been an increasing interest in plasmon-induced enhancement of solar cells and more recently in the direct generation of photocurrent using noble metal nanoparticles with their Localised Surface Plasmon Resonance (LSPR) in the visual part of the spectrum. In this paper we report broadband plasmon photocurrent generation using novel Au nanoparticle incorporated mesoporous TiO2nanotube electrodes. Plasmonic induced photocurrent due to hot electrons is observed over a broad wavelength range (~500 to 1000 nm). Incident photon-to-electron conversion efficiency (IPCE) measurements undertaken showed a maximum photocurrent enhancement of 200 fold around 700–730 nm wavelength.