Self Powered Highly Enhanced Dual Wavelength ZnO@CdS Core-Shell Nanorod Arrays Photodetector: An Intelligent Pair

被引:66
|
作者
Sarkar, Sanjit [1 ]
Basak, Durga [1 ]
机构
[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India
关键词
self-powered; ZnO; hybrid nanostructures; photodetector; dual wavelength; SENSITIZED SOLAR-CELLS; INFRARED PHOTODETECTOR; HYBRID PHOTODIODE; DRIVEN; HETEROSTRUCTURES; PHOTORESPONSE; PHOTOSENSOR; NANOWIRES; EMISSION; LAYER;
D O I
10.1021/acsami.5b03184
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
On the face of the impending energy crisis; developing low-energy or even zero-energy photoelectronic devices is extremely : important. A multispectral photo, sensitivity feature of a self-powered device provides an additional powerful tool. We have developed an unprecedented high performance dual wavelength self,powered ZnO@CdS/PEDOT:PSS core-shell nanorods array photodetector through a simple aqueous chemical method wherein a Suitable band alignment between an intelligent material pair, i.e. ZnO and CdS, has been utilized. Besides a noteworthy advantage Of the devices being that they show a very sharp and prominent dual wavelength photosensitivity, both the ultraviolet and visible light sensitivity (ratio of current under illumination(I-photo)/current under dark (I-dark)) of the device are two orders of higher magnitude than those of pristine ZnO, attaining values of 2.8 X 10(3) and 1.07 x 10(3), respectively. At the same time, temporal responses faster than 20 ms could be achieved with these solution-processed photodetectors. The present study provides a very important direction to engineer core-shell nanostructured devices for dual wavelength high photosensitivity.
引用
收藏
页码:16322 / 16329
页数:8
相关论文
共 50 条
  • [31] Facile synthesis and photocatalytic activity of ZnO/zinc titanate core-shell nanorod arrays
    He, Ding-Chao
    Fu, Qiu-Ming
    Ma, Zhi-Bin
    Zhao, Hong-Yang
    Tu, Ya-Fang
    Tian, Yu
    Zhou, Di
    Zheng, Guang
    Lu, Hong-Bing
    MATERIALS RESEARCH EXPRESS, 2018, 5 (02):
  • [32] Fabrication of ZnO/CdS, ZnO/CdO core/shell nanorod arrays and investigation of their ethanol gas sensing properties
    Kim, Wooseok
    Baek, Minki
    Yong, Kijung
    SENSORS AND ACTUATORS B-CHEMICAL, 2016, 223 : 599 - 605
  • [33] Synthesis and characterization of TiO2/CdS core-shell nanorod arrays and their photoelectrochemical property
    Cao, Chunlan
    Hu, Chenguo
    Shen, Weidong
    Wang, Shuxia
    Tian, Yongshu
    Wang, Xue
    JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 523 : 139 - 145
  • [35] A self-powered, visible-blind ultraviolet photodetector based on ZnO nanorods/ZnS core-shell structure
    Li, Shuang
    Chen, Zhitao
    Du, Zhenxi
    He, Huan
    Shen, Xiaoming
    Fu, Yuechun
    OPTICS COMMUNICATIONS, 2022, 525
  • [36] CdS sensitized ZnO core-shell nanorod array films preparing by chemical bath deposition
    Wang, Yunfeng
    Yao, Jianghong
    Jia, Guozhi
    APPLICATIONS OF ENGINEERING MATERIALS, PTS 1-4, 2011, 287-290 : 2407 - +
  • [37] Preparation of ZnO@ZnS core-shell nanorod arrays with enhanced photocurrent for removal of methylene blue dyes in wastewater
    Wu, Yu-Zhe
    Tseng, Wenjea J.
    OPEN CERAMICS, 2025, 21
  • [38] Enhanced electrochemical performance of ZnO nanorod core/polypyrrole shell arrays by graphene oxide
    Pruna, A.
    Shao, Q.
    Kamruzzaman, M.
    Zapien, J. A.
    Ruotolo, A.
    ELECTROCHIMICA ACTA, 2016, 187 : 517 - 524
  • [39] ZnO/CdTe and ZnO/CdS core-shell nanowire arrays for extremely thin absorber solar cells
    Salazar, Raul
    Delamoreanu, Alexandru
    Levy-Clement, Claude
    Ivanova, Valentina
    EUROPEAN MATERIALS RESEARCH SOCIETY CONFERENCE SYMPOSIUM: ADVANCED INORGANIC MATERIALS AND CONCEPTS FOR PHOTOVOLTAICS, 2011, 10
  • [40] Construction of CdS@ZnO core-shell nanorod arrays by atomic layer deposition for efficient photoelectrochemical H2 evolution
    Feng, Xiangbo
    Sun, Lvwei
    Wang, Wei
    Zhao, Yuzhen
    Shi, Jian-Wen
    SEPARATION AND PURIFICATION TECHNOLOGY, 2023, 324