DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jang, Hanbyeol | ko |
dc.contributor.author | Song, Yumin | ko |
dc.contributor.author | Seok, Yongwook | ko |
dc.contributor.author | Im, Heungsoon | ko |
dc.contributor.author | Kim, Tae Hyung | ko |
dc.contributor.author | Lee, Joo-Hyoung | ko |
dc.contributor.author | Kim, Yong-Hoon | ko |
dc.contributor.author | Lee, Kayoung | ko |
dc.date.accessioned | 2022-04-15T06:45:20Z | - |
dc.date.available | 2022-04-15T06:45:20Z | - |
dc.date.created | 2022-03-10 | - |
dc.date.created | 2022-03-10 | - |
dc.date.created | 2022-03-10 | - |
dc.date.created | 2022-03-10 | - |
dc.date.issued | 2022-02 | - |
dc.identifier.citation | NANOSCALE, v.14, no.8, pp.3004 - 3012 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10203/294777 | - |
dc.description.abstract | Low- or self-powered infrared sensors can be used in a broad range of applications, including networking mobile edge devices and image recognition for autonomous driving technology. Here, we show state-of-the-art self-powered near-infrared (NIR) sensors using graphene/In/InSe/Au as a photoactive region. The self-powered NIR sensors show outstanding performance, achieving a photoresponsivity of similar to 8.5 A W-1 and a detectivity of similar to 10(12) Jones at 850 nm light. Multiple self-powered InSe photodetectors with different device structures and contacts were systematically investigated. In particular, the asymmetrically assembled graphene/In/InSe/Au vertical heterostructure offers a high built-in field, which gives rise to efficient electron-hole pair separation and transit time that is shorter than the photocarrier lifetime. The built-in potential across the InSe was estimated using the Schottky barrier height at each metal contact with InSe, obtained using density functional theory calculations. We also demonstrate InSe vertical field-effect transistors and provide an out-of-plane carrier mobility of InSe. Using the out-of-plane mobility and structural parameters of each device, the built-in field, drift velocity, and corresponding transit time are estimated. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Zero power infrared sensing in 2D/3D-assembled heterogeneous graphene/In/InSe/Au | - |
dc.type | Article | - |
dc.identifier.wosid | 000755737700001 | - |
dc.identifier.scopusid | 2-s2.0-85125211885 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 8 | - |
dc.citation.beginningpage | 3004 | - |
dc.citation.endingpage | 3012 | - |
dc.citation.publicationname | NANOSCALE | - |
dc.identifier.doi | 10.1039/d1nr07884d | - |
dc.contributor.localauthor | Kim, Yong-Hoon | - |
dc.contributor.localauthor | Lee, Kayoung | - |
dc.contributor.nonIdAuthor | Jang, Hanbyeol | - |
dc.contributor.nonIdAuthor | Seok, Yongwook | - |
dc.contributor.nonIdAuthor | Im, Heungsoon | - |
dc.contributor.nonIdAuthor | Lee, Joo-Hyoung | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LIGHT TRAJECTORY TRACKING | - |
dc.subject.keywordPlus | HETEROJUNCTION | - |
dc.subject.keywordPlus | PHOTODETECTION | - |
dc.subject.keywordPlus | PHOTORESPONSE | - |
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