Fabrication of UV-VIS photodetector based on the ZnO/MoS2and ZnO/WS2heterostructures

Suci Mufidah Winata, Vivi Fauzia

Research output: Contribution to journalConference articlepeer-review


Two-dimensional layers of the transition metal dichalcogenides (2D TMDs) such as molybdenum disulfide (MoS2) and tungsten disulfide (WS2) attract much attention due to their potential applications in optoelectronic devices. MoS2 and WS2 with tunable bandgap are promising materials to enhance the light absorption range on ZnO-based photodetector. In this work, we report that the exfoliated MoS2 and WS2 were deposited on the surface ZnO nanorods for UV-vis photodetector application. The photoelectrical response of photodetector was observed using electrometer under 325, 505, and 625 nm laser diodes as UV and visible light sources. This study shows that the addition of MoS2 and WS2 could improve the performance of the ZnO photodetector due to higher photocurrent. The increase in both dark current and photocurrent is not yet clearly understood, but it may be that the edge sites of MoS2 and WS2 play a vital role to reduce the natural defects of ZnO; hence the mobility of charge carriers was improved.

Original languageEnglish
Article number012004
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2022
Event13th International Symposium on Modern Optics and Its Applications, ISMOA 2021 - Virtual, Online
Duration: 1 Aug 20214 Aug 2021


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