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. 2015 Jun 26;5:11472. doi: 10.1038/srep11472

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(a) Upper panel: optical images of the suspended MoS₂ device before and after deposition of the electrode. Lower panel: a schematic of the suspended monolayer MoS₂ device. (b) PL spectra of suspended (upper panel) and SiO₂-supported (lower panel) monolayer MoS₂ devices. (c) Photoresponse of the suspended MoS₂ device showing negligible PPC at T = 300 K (V_G = 0V, V_DS = 5V). (d) Photoresponses of monolayer MoS₂ on OTS-functionalized and conventional SiO₂ substrates (V_G = 0V, V_DS = 5 V). The photocurrents are normalized by I₀ for purposes of comparison.