Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이정호 | - |
dc.date.accessioned | 2019-05-22T07:12:50Z | - |
dc.date.available | 2019-05-22T07:12:50Z | - |
dc.date.issued | 2018-07 | - |
dc.identifier.citation | NANOSCALE, v. 10, No. 32, Page. 15285-15293 | en_US |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://pubs.rsc.org/en/content/articlehtml/2018/nr/c8nr04004d | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/105620 | - |
dc.description.abstract | Two-dimensional group-10 transition metal dichalcogenides have recently attracted increasing research interest because of their unique electronic and optoelectronic properties. Herein, we present vertical hybrid heterojunctions of multilayered PtSe2 and Si, which take advantage of large-scale homogeneous PtSe2 films grown directly on Si substrates. These heterojunctions show obvious rectifying behavior and a pronounced photovoltaic effect, enabling them to function as self-driven photodetectors operating at zero bias. The photodetectors can operate in both photovoltage and photocurrent modes, with responsivity values as high as 5.26 x 10 6 V W-1 and 520 mA W-1 at 808 nm, respectively. The I-light/I-dark ratio, specific detectivity, and response speed are 1.5 x 10(5), 3.26 x 10(13) Jones, and 55.3/170.5 mu s, respectively. Furthermore, the heterojunctions are highly sensitive in a broad spectral region ranging from deep ultraviolet to near-infrared (NIR) (200-1550 nm). Because of the strong MR light absorption of PtSe2, the heterojunctions exhibit photocurrent responsivities of 33.25 and 0.57 mA W-1 at telecommunication wavelengths of 1310 and 1550 nm, respectively. Considering the excellent performance of the PtSe2/Si heterojunctions, they are highly suitable for application in high-performance broadband photodetectors. The generality of the above results also signifies that the proposed in situ synthesis method has great potential for future large-scale optoelectronic device integration. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP; no. 2017R1A2B3006941) and the Human Resources Development Program (no. 20154030200680) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant. This work was also supported by "the Fundamental Research Funds for the Central Universities" of the Ministry of Education of China (JZ2018HGTA0220 and JZ2018HGPB0275). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ROYAL SOC CHEMISTRY | en_US |
dc.subject | TRANSITION-METAL DICHALCOGENIDES | en_US |
dc.subject | NEAR-INFRARED PHOTODETECTORS | en_US |
dc.subject | MOLECULAR-BEAM EPITAXY | en_US |
dc.subject | SELF-DRIVEN | en_US |
dc.subject | HIGH-DETECTIVITY | en_US |
dc.subject | 2-DIMENSIONAL MATERIALS | en_US |
dc.subject | SCHOTTKY JUNCTION | en_US |
dc.subject | GRAPHENE | en_US |
dc.subject | OPTOELECTRONICS | en_US |
dc.subject | DEVICES | en_US |
dc.title | High-performance broadband heterojunction photodetectors based on multilayered PtSe2 directly grown on a Si substrate | en_US |
dc.type | Article | en_US |
dc.relation.no | 32 | - |
dc.relation.volume | 10 | - |
dc.identifier.doi | 10.1039/c8nr04004d | - |
dc.relation.page | 15285-15293 | - |
dc.relation.journal | NANOSCALE | - |
dc.contributor.googleauthor | Xie, Chao | - |
dc.contributor.googleauthor | Zeng, Longhui | - |
dc.contributor.googleauthor | Zhang, Zhixiang | - |
dc.contributor.googleauthor | Tsang, Yuen-Hong | - |
dc.contributor.googleauthor | Luo, Linbao | - |
dc.contributor.googleauthor | Lee, Jung-Ho | - |
dc.relation.code | 2018000106 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | jungho | - |
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