Name
Title | ||
|---|---|---|
Demonstration of SWIR Silicon-Based Photodetection by Using Thin ITO/Au/Au Nanoparticles/n-Si Structure |
Abstract | ||
|---|---|---|
Plasmonic photodetection based on the hot-electron generation in nanostructures is a promising strategy for sub-band detection due to the high conversion efficiencies; however, it is plagued with the high dark current. In this paper, we have demonstrated the plasmonic photodetection with dark current suppression to create a Si-based broadband photodetector with enhanced performance in the short-wavelength infrared (SWIR) region. By hybridizing a 3 nm Au layer with the spherical Au nanoparticles (NPs) formed by rapid thermal annealing (RTA) on Si substrate, a well-behaved ITO/Au/Au NPs/n-Si Schottky photodetector with suppressed dark current and enhanced absorption in the SWIR region is obtained. This optimized detector shows a broad detection beyond 1200 nm and a high responsivity of 22.82 mA/W at 1310 nm at -1 V, as well as a low dark current density on the order of 10(-5) A/cm(2). Such a Si-based plasmon-enhanced detector with desirable performance in dark current will be a promising strategy for realization of the high SNR detector while keeping fabrication costs low. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.3390/s22124536 | SENSORS |
Keywords | DocType | Volume |
Au nanoparticle, dark current suppression, enhanced absorption, SWIR, photodetectors | Journal | 22 |
Issue | ISSN | Citations |
12 | 1424-8220 | 0 |
PageRank | References | Authors |
0.34 | 0 | 8 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xinxin Li | 1 | 31 | 11.80 |
| Zhen Deng | 2 | 0 | 0.34 |
| Ziguang Ma | 3 | 0 | 0.34 |
| Yang Jiang | 4 | 0 | 0.68 |
| Chunhua Du | 5 | 0 | 0.34 |
| Haiqiang Jia | 6 | 0 | 0.68 |
| Wenxin Wang | 7 | 0 | 0.34 |
| Chen Hong | 8 | 21 | 11.66 |