Simple Fabrication of Highly Sensitive Photodetectors Using MoS2 Nanoparticles and Ag Nanowires
- Authors
- Xiao, Peng; Kim, Ju-Hyung; Seo, Soonmin
- Issue Date
- Sep-2017
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Photodetectors; Light Sensors; Transition Metal Dichalcogenides; Molybdenum Disulfide; Silver Nanowires
- Citation
- SCIENCE OF ADVANCED MATERIALS, v.9, no.9, pp.1626 - 1630
- Journal Title
- SCIENCE OF ADVANCED MATERIALS
- Volume
- 9
- Number
- 9
- Start Page
- 1626
- End Page
- 1630
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/5792
- DOI
- 10.1166/sam.2017.3182
- ISSN
- 1947-2935
- Abstract
- Photodetectors based on low dimensional transition metal dichalcogenides (TMDCs) have received much attention due to their remarkable advantages such as extremely short response times and high sensitivity. Here, a novel and simple fabrication method for ultrathin TMDC-based photodetectors is presented. Molybdenum disulfide (MoS2) nanoparticles are used as photoactive components and are chemically connected to silver (Ag) nanowires via mechanical mixing and thermal annealing processes. Since the Ag nanowires provide an efficient pathway for charge carriers in the devices, the photoexcited carriers in MoS2 can be easily collected through the strongly bonded Ag in the presence of an external electric field. In addition, the chemical bonding properties of MoS2 and Ag are determined after thermal annealing, which can lead to highly sensitive photo responses of the devices. It is anticipated that these results will significantly contribute to the development of advanced photo-detecting systems that require high performance materials, including various light sensing applications.
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