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- W4313509436 abstract "Abstract WTe 2 is one of the wonder layered materials, displays interesting overlapping of electron–hole pairs, opening of the surface bandgap, anisotropy in its crystal structure and very much sought appealing material for room temperature broadband photodection applications. Here we report the photoresponse of WTe 2 thin films and microchannel devices fabricated on silicon nitride substrates. A clear sharp rise in photocurrent observed under the illumination of visible (532 nm) and NIR wavelengths (1064 nm). The observed phoresponse is very convincing and repetitive for ON /OFF cycles of laser light illumination. The channel length dependence of photocurrent is noticed for few hundred nanometers to micrometers. The photocurrent, rise & decay times, responsivity and detectivity are studied using different channel lengths. Strikingly microchannel gives few orders of greater responsivity compared to larger active area investigated here. The responsivity and detectivity are observed as large as 29 A/W and 3.6 × 10 8 Jones respectively. The high performing photodetection properties indicate that WTe 2 can be used as a broad band material for future optoelectronic applications." @default.
- W4313509436 created "2023-01-06" @default.
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- W4313509436 date "2023-01-05" @default.
- W4313509436 modified "2023-09-25" @default.
- W4313509436 title "Investigating active area dependent high performing photoresponse through thin films of Weyl Semimetal WTe2" @default.
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- W4313509436 doi "https://doi.org/10.1038/s41598-022-27200-z" @default.
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