Manipulation of Surface Plasmon Resonance in Sub-Stoichiometry Molybdenum Oxide Nanodots through Charge Carrier Control Technique

Li, Yiwen1,2; Cheng, Jiaji3; Liu, Yizun1; Liu, Peizhao4; Cao, Wanqiang4; He, Tingchao5; Chen, Rui1; Tang, Zikang2

2017-03-09

10.1021/acs.jpcc.6b11047

Journal of Physical Chemistry C   影响因子和分区

1932-7447

Semiconductor nanocrystals are intriguing because they show surface plasmon absorption features like noble metallic nanoparticles. In contrast with metal, manipulation of their unique plasmonic resonance could be easily realized by the free-carrier concentration. Here, it is demonstrated that MoO3-x, nanodots can exhibit striking surface plasmon resonance located at near-infrared region under treatment of two different reducing agents. Furthermore, the tunable resonance mode has been achieved through appropriate redox processes. Refractive index sensing has been demonstrated by monitoring the plasmonic peak. The improved sensing application is ascribed to the enhanced electric field in the plasmonic nanocrystals. These new insights into MoO3-x, nanodots pave a way to develop novel plasmonic applications such as photothermal therapy, light harvesting, and sensing.

SCI ; EI

英语

第一 ; 通讯

Shenzhen Science and Technology Innovation Committee[JCYJ20150630162649956] ; Shenzhen Science and Technology Innovation Committee[JCYJ20150930160634263] ; Shenzhen Science and Technology Innovation Committee[KQTD2015071710313656]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000396295800048

AMER CHEMICAL SOC

20171203479101

Carrier concentration ; Electric fields ; Infrared devices ; Molybdenum oxide ; Nanocrystals ; Nanodots ; Plasmonics ; Reducing agents ; Refractive index ; Surface plasmon resonance

Electricity: Basic Concepts and Phenomena:701.1 ; Light/Optics:741.1 ; Nanotechnology:761 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3

Web of Science

1.South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Univ Macau, Inst Appl Phys & Mat Engn, Ave Univ, Taipa, Macau, Peoples R China
3.CNRS, Inst Chim Mat Condensee Bordeaux, UPR 9048, F-33608 Pessac, France
4.Hubei Univ, Sch Mat Sci & Engn, Wuhan 430062, Peoples R China
5.Shenzhen Univ, Coll Phys & Energy, Shenzhen 518060, Peoples R China

Li, Yiwen,Cheng, Jiaji,Liu, Yizun,et al. Manipulation of Surface Plasmon Resonance in Sub-Stoichiometry Molybdenum Oxide Nanodots through Charge Carrier Control Technique[J]. Journal of Physical Chemistry C,2017,121(9):5208-5214.

Li, Yiwen.,Cheng, Jiaji.,Liu, Yizun.,Liu, Peizhao.,Cao, Wanqiang.,...&Tang, Zikang.(2017).Manipulation of Surface Plasmon Resonance in Sub-Stoichiometry Molybdenum Oxide Nanodots through Charge Carrier Control Technique.Journal of Physical Chemistry C,121(9),5208-5214.

Li, Yiwen,et al."Manipulation of Surface Plasmon Resonance in Sub-Stoichiometry Molybdenum Oxide Nanodots through Charge Carrier Control Technique".Journal of Physical Chemistry C 121.9(2017):5208-5214.