Plasmonic Ag‑Decorated Few‑Layer MoS2 Nanosheets Vertically Grown on Graphene for Efficient Photoelectrochemical Water Splitting

作     者：Dong‑Bum Seo Tran Nam Trung Dong‑Ok Kim Duong Viet Duc Sungmin Hong Youngku Sohn Jong‑Ryul Jeong Eui‑Tae Kim Dong?Bum Seo;Tran Nam Trung;Dong?Ok Kim;Duong Viet Duc;Sungmin Hong;Youngku Sohn;Jong?Ryul Jeong;Eui?Tae Kim

作者机构：Department of Materials Science and EngineeringChungnam National UniversityDaejeon 34134Republic of Korea Department of ChemistryChungnam National UniversityDaejeon 34134Republic of Korea 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2020年第12卷第12期

页      面：159-172页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This work was supported by the National Research Foundation of Korea(NRF)grants funded by the Ministry of Education(2020R1I1A3A04037241 and 2019R1A6A3A13095792)and the Korea Government(MSIT)(2020R1A4A4079397) 

主　　题：Photoelectrocatalysis Molybdenum disulfide Graphene Surface plasmon resonance 

摘      要：A controllable approach that combines surface plasmon resonance and twodimensional(2D)graphene/MoS2 heterojunction has not been implemented despite its potential for efficient photoelectrochemical(PEC)water *** this study,plasmonic Ag-decorated 2D MoS2 nanosheets were vertically grown on graphene substrates in a practical large-scale manner through metalorganic chemical vapor deposition of MoS2 and thermal evaporation of *** plasmonic Ag-decorated MoS2 nanosheets on graphene yielded up to 10 times higher photo-to-dark current ratio than MoS2 nanosheets on indium tin *** significantly enhanced PEC activity could be attributed to the synergetic effects of SPR and favorable graphene/2D MoS2 *** Ag nanoparticles not only increased visible-light and near-infrared absorption of 2D MoS2,but also induced highly amplified local electric field intensity in 2D *** addition,the vertically aligned 2D MoS2 on graphene acted as a desirable heterostructure for efficient separation and transportation of photo-generated *** study provides a promising path for exploiting the full potential of 2D MoS2 for practical large-scale and efficient PEC water-splitting applications.