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Enhanced field emission behavior of layered $MoSe_{2}$
| Content Provider | Scilit |
|---|---|
| Author | Suryawanshi, Sachin R. Pawbake, Amit S. Pawar, Mahendra S. Jadkar, Sandesh R. More, Mahendra A. Late, Dattatray J. |
| Copyright Year | 2016 |
| Description | Journal: Materials Research Express Herein, we report one step facile chemical vapor deposition method for synthesis of single-layer $MoSe_{2}$ nanosheets with average lateral dimension ~60 μm on 300 nm $SiO_{2}$/Si and n-type silicon substrates and field emission investigation of $MoSe_{2}$/Si at the base pressure of ~1 × $10^{−8}$ mbar. The morphological and structural analyses of the as-deposited single-layer $MoSe_{2}$ nanosheets were carried out using an optical microscopy, Raman spectroscopy and atomic force microscopy. Furthermore, the values of turn-on and threshold fields required to extract an emission current densities of 1 and 10 μA $cm^{−2}$, are found to be ~1.9 and ~2.3 V $μm^{−1}$, respectively. Interestingly, the $MoSe_{2}$ nanosheet emitter delivers maximum field emission current density of ~1.5 mA $cm^{−2}$ at a relatively lower applied electric field of ~3.9 V $μm^{−1}$. The long term operational current stability recorded at the preset values of 35 μA over 3 hr duration and is found to be very good. The observed results demonstrates that the layered $MoSe_{2}$ nanosheet based field emitter can open up many opportunities for their potential application as an electron source in flat panel display, transmission electron microscope, and x-ray generation. Thus, the facile one step synthesis approach and robust nature of single-layer $MoSe_{2}$ nanosheets emitter can provide prospects for the future development of practical electron sources. |
| Related Links | http://iopscience.iop.org/article/10.1088/2053-1591/3/3/035003/pdf |
| ISSN | 20531591 |
| e-ISSN | 20531591 |
| DOI | 10.1088/2053-1591/3/3/035003 |
| Journal | Materials Research Express |
| Issue Number | 3 |
| Volume Number | 3 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2016-02-24 |
| Access Restriction | Open |
| Subject Keyword | Journal: Materials Research Express Raman Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics |
