Strain-Enhanced Large-Area Monolayer MoS 2 Photodetectors

In this study, we show a direct correlation between the applied mechanical strain and an increase in monolayer MoS photoresponsivity. This shows that tensile strain can improve the efficiency of monolayer MoS photodetectors. The observed high photocurrent and extended response time in our devices ar...

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Veröffentlicht in:ACS applied materials & interfaces 2024-03, Vol.16 (12), p.15596-15604
Hauptverfasser: Radatović, Borna, Çakıroğlu, Onur, Jadriško, Valentino, Frisenda, Riccardo, Senkić, Ana, Vujičić, Nataša, Kralj, Marko, Petrović, Marin, Castellanos-Gomez, Andres
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container_end_page 15604
container_issue 12
container_start_page 15596
container_title ACS applied materials & interfaces
container_volume 16
creator Radatović, Borna
Çakıroğlu, Onur
Jadriško, Valentino
Frisenda, Riccardo
Senkić, Ana
Vujičić, Nataša
Kralj, Marko
Petrović, Marin
Castellanos-Gomez, Andres
description In this study, we show a direct correlation between the applied mechanical strain and an increase in monolayer MoS photoresponsivity. This shows that tensile strain can improve the efficiency of monolayer MoS photodetectors. The observed high photocurrent and extended response time in our devices are indicative that devices are predominantly governed by photogating mechanisms, which become more prominent with applied tensile strain. Furthermore, we have demonstrated that a nonencapsulated MoS monolayer can be used in strain-based devices for many cycles and extensive periods of time, showing endurance under ambient conditions without loss of functionality. Such robustness emphasizes the potential of MoS for further functionalization and utilization of different flexible sensors.
doi_str_mv 10.1021/acsami.4c00458
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title Strain-Enhanced Large-Area Monolayer MoS 2 Photodetectors
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