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Waveguide-CouplednLight Photodetector Based on Two-DimensionalnMolybdenum Disulfide 基于二维二硫化钼的波导耦合光探测器

Figshare Pub Date : 2024-05-25 DOI: 10.1021/acsami.4c04854.s001

Daria Hlushchenko (18613898), Jacek Olszewski (13109271), Tadeusz Martynkien (5637350), Michał Łukomski (10258747), Karolina Gemza (13148238), Pawel Karasiński (18613901), Magdalena Zięba (18613904), Tomasz Baraniecki (18613907), Łukasz Duda (6594455), Alicja Bachmatiuk (1477825), Małgorzata Guzik (18322663), Robert Kudrawiec (4905985)

{"title":"Waveguide-CouplednLight Photodetector Based on Two-DimensionalnMolybdenum Disulfide","authors":"Daria Hlushchenko (18613898), Jacek Olszewski (13109271), Tadeusz Martynkien (5637350), Michał Łukomski (10258747), Karolina Gemza (13148238), Pawel Karasiński (18613901), Magdalena Zięba (18613904), Tomasz Baraniecki (18613907), Łukasz Duda (6594455), Alicja Bachmatiuk (1477825), Małgorzata Guzik (18322663), Robert Kudrawiec (4905985)","doi":"10.1021/acsami.4c04854.s001","DOIUrl":"https://doi.org/10.1021/acsami.4c04854.s001","url":null,"abstract":"The integration of transition metal dichalcogenides withnphotonicnstructures such as sol–gel SiOx:TiOy optical waveguides (WGs) makesnpossible the fabrication of photonic devices with the desired characteristicsnin the visible spectral range. In this study, we propose and experimentallyndemonstrate a MoS2-based photodetector integrated withna sol–gel SiOx:TiOy WG. Based on the spectroscopic measurements performednfor our device, we concluded that the light entering the WG is almostncompletely channeled out from the WG and absorbed by the MoS2 flake, which is deposited on the WG. Therefore, this device worksnas a photodetector. The light coupling into the MoS2 regionnin this device construction is due to the high contrast of refractivenindex between the van der Waals crystal and the sol–gel WG,nwhich is ∼4 and ∼1.8, respectively. The obtained MoS2-based photodetectors exhibit a photoresponsivity of 0.3 AnW−1 (n-type MoS2) andn7.53 mA W−1 (p-type MoS2) at a bias voltage of 2 V. These results reveal great potentialnin the integration of sol–gel WGs with van der Waals crystalsnin optoelectronic applications.","PeriodicalId":522882,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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