Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 윤석현 | * |
dc.contributor.author | 김동욱 | * |
dc.date.accessioned | 2021-08-05T16:31:23Z | - |
dc.date.available | 2021-08-05T16:31:23Z | - |
dc.date.issued | 2021 | * |
dc.identifier.issn | 2637-6113 | * |
dc.identifier.other | OAK-29612 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/258532 | - |
dc.description.abstract | Hetero-bilayers, composed of transition metal dichalcogenide (TMD) monolayers of MoS2(1L-MoS2) and 1L-WS2, are grown on Al2O3 substrates through sulfurization of predeposited metal thin films. A very smooth surface morphology and the uniform contact potential difference (CPD) maps show that high-quality homogeneous TMD layers are obtained. The light-induced CPD change, that is, surface photovoltage (SPV), of the samples is investigated. A record high SPV is measured under 532 nm illumination with a power density of 13 mW/cm(2) from the hetero-bilayers, with values of 800 mV for 1L-WS2/1L-MoS2 and -790 mV for 1L-MoS2/1L-WS2. Band diagrams are proposed to explain the observed CPD and SPV characteristics. The power dependence of the SPV demonstrates that the measured values represent the expected open-circuit voltage of the hetero-bilayers. The obtained results suggest that optimal growth and proper contact formation with the TMD vertical hetero-bilayers will enable high-efficiency ultrathin photovoltaic devices. | * |
dc.language | English | * |
dc.publisher | AMER CHEMICAL SOC | * |
dc.subject | surface photovoltage | * |
dc.subject | MoS2 | * |
dc.subject | WS2 | * |
dc.subject | hetero-bilayer | * |
dc.subject | open-circuit voltage | * |
dc.title | Large Surface Photovoltage of WS2/MoS2 and MoS2/WS2 Vertical Hetero-bilayers | * |
dc.type | Article | * |
dc.relation.issue | 6 | * |
dc.relation.volume | 3 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 2601 | * |
dc.relation.lastpage | 2606 | * |
dc.relation.journaltitle | ACS APPLIED ELECTRONIC MATERIALS | * |
dc.identifier.doi | 10.1021/acsaelm.1c00192 | * |
dc.identifier.wosid | WOS:000665655800018 | * |
dc.author.google | Kim, Bora | * |
dc.author.google | Kim, Jayeong | * |
dc.author.google | Tsai, Po-Cheng | * |
dc.author.google | Choi, Hyeji | * |
dc.author.google | Yoon, Seokhyun | * |
dc.author.google | Lin, Shih-Yen | * |
dc.author.google | Kim, Dong-Wook | * |
dc.contributor.scopusid | 윤석현(55732105900) | * |
dc.contributor.scopusid | 김동욱(57203350633) | * |
dc.date.modifydate | 20240123114549 | * |