Stable field emission from layered MoS2 nanosheets in high vacuum and observation of 1/f noise
| Title | Stable field emission from layered MoS2 nanosheets in high vacuum and observation of 1/f noise |
| Publication Type | Journal Article |
| Year of Publication | 2015 |
| Authors | Kashid, RV, Joag, PD, Thripuranthaka, M, Rout, CS, Late, DJ, More, MA |
| Journal | Nanomaterials and Nanotechnology |
| Volume | 5 |
| Pagination | 10 |
| Date Published | APR |
| ISSN | 1847-9804 |
| Keywords | Electron emission, layered materials, MoS2, Noise measurement, Raman spectroscopy |
| Abstract | Field emission and current noise of hydrothermally synthesized MoS2 nanosheets are investigated in ultra-high-vacuum and industrially suited high-vacuum conditions. The study reveals that the emission turn-on field is pressure dependent. Moreover, the MoS2 nanosheets exhibit more stable field-electron emission in high-vacuum than in ultra-high-vacuum conditions. The investigations on field-emission current fluctuations show features of 1/f-type noise in ultra-high-vacuum and high-vacuum conditions, attributed to adsorption and desorption processes. The post-field-emission results indicate the MoS2 nanosheets are a robust field emitter in high-vacuum conditions. |
| DOI | 10.5772/60071 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 1.109 |
Divison category:
Physical and Materials Chemistry