Thin film MoS2 nanocrystal based ultraviolet photodetector

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Thin film MoS2 nanocrystal based ultraviolet photodetector.pdf (1.97 MB)

Date

2012

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Source Title

Optics Express

Print ISSN

10944087

Electronic ISSN

Publisher

Optical Society of American (OSA)

Volume

20

Issue

19

Pages

21815 - 21820

Language

English

Type

Article

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Abstract

We report on the development of UV range photodetector based on molybdenum disulfide nanocrystals (MoS2-NCs). The inorganic MoS2- NCs are produced by pulsed laser ablation technique in deionized water and the colloidal MoS2-NCs are characterized by transmission electron microscopy, Raman spectroscopy, X-ray diffraction and UV/VIS absorption measurements. The photoresponse studies indicate that the fabricated MoS 2- NCs photodetector (MoS2-NCs PD) operates well within 300-400 nm UV range, with diminishing response at visible wavelengths, due to the MoS2- NCs absorption characteristics. The structural and the optical properties of laser generated MoS2-NCs suggest promising applications in the field of photonics and optoelectronics. © 2012 Optical Society of America.

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Keywords

Deionized water , Molybdenum , Nanocrystals , Optical properties , Photodetectors , Raman spectroscopy , Transmission electron microscopy , Water absorption , X ray diffraction , Absorption characteristics , Absorption measurements , Molybdenum disulfide , Photoresponses , Ultra-violet photodetectors , Visible wavelengths , Molybdenum compounds

Citation

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http://hdl.handle.net/11693/21329

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http://dx.doi.org/10.1364/OE.20.021815

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Institute of Materials Science and Nanotechnology (UNAM)
Department of Electrical and Electronics Engineering