McManus, D. ; Dal Santo, A. ; Selvasundaram, P. B. ; Krupke, R. ; LiBassi, A. ; Casiraghi, C. (2018)
Photocurrent study of all-printed photodetectors on paper made of different transition metal dichalcogenide nanosheets.
In: Flexible and Printed Electronics, 3 (3)
doi: 10.1088/2058-8585/aaddb5
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We have inkjet-printed in-plane 'metal–semiconductor–metal' type photodetectors on paper, one of the cheapest flexible substrates, which is also recyclable and foldable, in contrast to traditional plastic substrates. The photodetectors are made by using graphene as electrodes and various transition metal dichalcogenides (TMDs) as photoactive component. In particular, we have tested MoS2, WS2, MoSe2 and MoTe2. Large differences in responsivity and sensitivity were observed for all of the TMDs measured, with MoS2 showing the highest sensitivity and MoTe2 producing the largest response. However, photodetectors made of MoTe2 show a large decrease in responsivity after one week of exposure to air. The wavelength dependence of the responsivity in MoS2 based devices was further analyzed using a supercontinuum photocurrent spectroscopy setup, with the results suggesting a bolometric or photoelectric origin of the signal. We also report some simple approaches to enhance the device performance and tune the energy range at which the maximum in responsivity or sensitivity is observed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | McManus, D. ; Dal Santo, A. ; Selvasundaram, P. B. ; Krupke, R. ; LiBassi, A. ; Casiraghi, C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Photocurrent study of all-printed photodetectors on paper made of different transition metal dichalcogenide nanosheets |
| Sprache: | Englisch |
| Publikationsjahr: | 27 September 2018 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Flexible and Printed Electronics |
| Jahrgang/Volume einer Zeitschrift: | 3 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.1088/2058-8585/aaddb5 |
| URL / URN: | https://iopscience.iop.org/article/10.1088/2058-8585/aaddb5 |
| Kurzbeschreibung (Abstract): | We have inkjet-printed in-plane 'metal–semiconductor–metal' type photodetectors on paper, one of the cheapest flexible substrates, which is also recyclable and foldable, in contrast to traditional plastic substrates. The photodetectors are made by using graphene as electrodes and various transition metal dichalcogenides (TMDs) as photoactive component. In particular, we have tested MoS2, WS2, MoSe2 and MoTe2. Large differences in responsivity and sensitivity were observed for all of the TMDs measured, with MoS2 showing the highest sensitivity and MoTe2 producing the largest response. However, photodetectors made of MoTe2 show a large decrease in responsivity after one week of exposure to air. The wavelength dependence of the responsivity in MoS2 based devices was further analyzed using a supercontinuum photocurrent spectroscopy setup, with the results suggesting a bolometric or photoelectric origin of the signal. We also report some simple approaches to enhance the device performance and tune the energy range at which the maximum in responsivity or sensitivity is observed. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Molekulare Nanostrukturen |
| Hinterlegungsdatum: | 20 Nov 2020 12:08 |
| Letzte Änderung: | 20 Nov 2020 12:08 |
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