International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
Nanotechnology. 2011 Apr 22;22(16):165704. doi: 10.1088/0957-4484/22/16/165704. Epub 2011 Mar 11.
Excellent photoconductive properties have been found in Sb(2)O(3) nanobelts synthesized by a surfactant-assisted solvothermal method. Visible-light photodetectors have been designed from Sb(2)O(3) nanobelt networks using micrometer-wide gold wires as masks. Photodetectors show high sensitivity to visible light, high stability, and reproducibility. Fast response and decay times (<0.3 s) are comparable or even better than these parameters in many other metal oxide nanoscale photodetectors. The dominant mechanism of excellent photoconductivity is attributed to the barrier height modulations in the nanobelt-to-nanobelt contact regions. These results demonstrate that Sb(2)O(3) nanobelt networks can indeed serve as high-performance photodetectors in the visible light range.
通过表面活性剂辅助的溶剂热法合成的 Sb(2)O(3)纳米带具有优异的光电导性能。使用微米宽的金线作为掩模，从 Sb(2)O(3)纳米带网络设计了可见光光电探测器。光电探测器对可见光具有高灵敏度、高稳定性和可重复性。快速的响应和衰减时间（<0.3 s）与许多其他金属氧化物纳米尺度光电探测器的这些参数相当，甚至更好。优异光电导性的主要机制归因于纳米带接触区域的势垒高度调制。这些结果表明 Sb(2)O(3)纳米带网络确实可以作为可见光范围内的高性能光电探测器。
