Enhanced photocurrent from generated photothermal heat in indium nanoparticles embedded TiO2 film

被引：21

作者：

Choudhuri, B. ^{[1
]}

Mondal, A. ^{[1
]}

Dhar, J. C. ^{[1
]}

Singh, N. K. ^{[1
]}

Goswami, T. ^{[1
]}

Chattopadhyay, K. K. ^{[2
]}

机构：

[1] Natl Inst Technol Agartala, Dept Elect & Commun Engn, Agartala 799055, India

[2] Jadavpur Univ, Dept Phys, Kolkata 700032, India

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 23期

关键词：

OPTICAL-PROPERTIES; PLASMA-RESONANCE; SOLAR; ABSORPTION; CONVERSION; GOLD; NANOSTRUCTURES; RELAXATION; PARTICLES;

D O I：

10.1063/1.4811360

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated the synthesis of indium (In) nanoparticle (NP) arrays on TiO2 thin film (TF) using glancing angle deposition technique. The deposited In NPs are of the order of 4-10 nm in size. Optical absorption measurements depict 2.5 times enhanced absorption for In-NPs/TiO2-TF compared to TiO2 TF. The plasmonic device shows a turn on voltage at similar to 3.0 and similar to 1.0V under dark and 30 min illumination, respectively. The device current increases from 1.6 to 6.5 mA/cm(2) (+5V) with enhanced temperature for 1-30 min continuous light exposures. The plasmonic device shows eight-fold enlarged photoresponsivity (+2.3V) compared to the TiO2 TF based device. (C) 2013 AIP Publishing LLC.

引用

页数：4

共 29 条

[1] Size-dependent change in interband absorption and broadening of optical plasma-resonance absorption of indium particles [J].