期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 14, 页码 11862-11871出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b17836
关键词
hot-electron photodetector; NIR detection; gold nanostructure; self-affine nanostructure; nonlinear optics; tunnel effect
资金
- Canadian Defense Academy Research Program (CDARP)
- National Science Research Council of Canada Discovery Grants [RGPIN-2015-05485]
- CREATE program (Novel Chiral Materials: An International Effort in Research and Education)
Plasmonic nanostructures can generate energetic hot electrons from light in a broad band fashion depending on their shape, size, and arrangement. Such structures have a promising use in photodetectors, allowing high speed, broad band, and multicolor photodetection. Because they function without a band gap absorption, photon detection at any energy would be possible through engineering of the plasmonic nanostructure. Herein, a compact hot electron-based photodetector that combines polarization sensitivity and circularly polarized light detection in the near infrared region was fabricated using an indium tin oxide (ITO)-Au hybrid layer. Furthermore, the sensitivity of the device was significantly increased by adding a poled Azo molecular glass film in a capacitor configuration. The resulting device is capable of detecting light below the ITO band gap at ambient temperature without any bias voltage. This photodetector, which is amenable to large-area fabrication, can be integrated with other nanophotonic and nanoplasmonic structures for operation at telecom wavelengths.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据