Please use this identifier to cite or link to this item: http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/3384
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dc.contributor.authorWadhwa, R.-
dc.contributor.authorGhosh, A.-
dc.contributor.authorKumar, D.-
dc.contributor.authorKumar, P.-
dc.contributor.authorKumar, M.-
dc.date.accessioned2022-04-27T08:56:31Z-
dc.date.available2022-04-27T08:56:31Z-
dc.date.issued2022-04-27-
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/3384-
dc.description.abstract2D MoS2 holds immense potential for electronic and optoelectronic applications due to its unique characteristics. However, the atomic-scale thickness of MoS2 hinders the optical absorbance, thereby limiting its photodetection capability. Vertically-aligned MoS2 (VA-MoS2) has an advantage of strong optical absorption and quick intra-layer transport, offering high speed operation. The coupling of plasmonic metal nanostructure with MoS2 can further enhance the light-matter interaction. Pt/Pd (as opposed to Ag/Au) are more promising to design next-generation nano-plasmonic devices due to their intense interband activity over a broad spectral range. Herein, we report Pt nanoparticle (NPs) enhanced broadband photoresponse in VA-MoS2. The optical absorbance of MoS2 is enhanced after the integration of Pt NPs, with a four-fold enhancement in photocurrent. The formation of Schottky junction at Pt-MoS2 interface inhibits electron transmission, suppressing the dark current and substantially reducing NEP. The plasmonic-enabled photodetector shows enhanced responsivity (432 A W-1, 800 nm) and detectivity (1.85 × 1014 Jones, 5 V) with a low response time (87 ms/84 ms), attributed to faster carrier transport. Additionally, a theoretical approach is adopted to calculate wavelength-dependent responsivity, which matches well with experimental results. These findings offer a facile approach to modulate the performance of next-generation optoelectronic devices for practical applications.en_US
dc.language.isoen_USen_US
dc.subjectBroadband photoresponseen_US
dc.subjectPhotodetectoren_US
dc.subjectPlasmonicsen_US
dc.subjectPt NPsen_US
dc.subjectVertically aligned MoS2en_US
dc.titlePlatinum nanoparticle sensitized plasmonicenhanced broad spectral photodetection in large area vertical-aligned MoS2 flakesen_US
dc.typeArticleen_US
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