The Effect of Deposition of MoSe2Nanosheets on the Performance of a ZnO-based UV Detector

Margaretha Chandrika Larasati Dion, Vivi Fauzia, Cuk Imawan

Research output: Contribution to journalConference articlepeer-review

Abstract

ZnO is a promising candidate for ultraviolet (UV) detectors due to its wide bandgap, good transparency, non-toxicity, low cost, and simple preparation. However, the performance of ZnO is low because of its high recombination rate. One alternative solution is fabricating a heterostructure of ZnO with a transition metal dichalcogenide (TMD) compound. This study proposes the facile fabrication of ZnO nanorods decorated with MoSe2 nanosheets. MoSe2 nanosheets were synthesized using the liquid-phase exfoliation method and added to the surface of ZnO nanorods via spin coating. The photodetector performance was enhanced with the addition of MoSe2 nanosheets because the MoSe2 could trap the electrons of defect sites of ZnO; hence, it decreased the dark current and slightly increased the photocurrent. The responsivity increased from 1.03 to 1.25 A/W, the detectivity increased from 0.82 x 109 to 1.9 x 109 Jones, and the sensitivity increased from 1261% to 5701%.

Original languageEnglish
Article number012006
JournalJournal of Physics: Conference Series
Volume1951
Issue number1
DOIs
Publication statusPublished - 12 Jul 2021
Event1st International Symposium on Physics and Applications, ISPA 2020 - Surabaya, Virtual, Indonesia
Duration: 17 Dec 202018 Dec 2020

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