MoS${}_2$-on-paper optoelectronics: drawing photodetectors with van der Waals semiconductors beyond graphite

Abstract

We fabricate paper-supported semiconducting devices by rubbing a layered molybdenum disulfide (MoS2) crystal onto a piece of paper, similarly to the action of drawing/writing with a pencil on paper. We show that the abrasion between the MoS2 crystal and the paper substrate efficiently exfoliates the crystals, breaking the weak van der Waals interlayer bonds and leading to the deposition of a film of interconnected MoS2 platelets. Employing this simple method, that can be easily extended to other 2D materials, we fabricate MoS2-on-paper broadband photodectectors with spectral sensitivity from the ultraviolet (UV) to the near-infrared (NIR). We also used these paper-based photodetectors to acquire pictures of objects by mounting the photodetectors in a homebuilt single-pixel camera setup.

arXiv comment6 main text figures + 4 Supp Info figures

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Cited by in corpus (4)

• Drawing WS2 thermal sensors on paper substrates
• Integrating van der Waals materials on paper substrates for electrical and optical applications
• Integrating superconducting van der Waals materials on paper substrates
• Scalable conformal electronics based on roll-to-roll exfoliated van der Waals semiconductors