Biologically inspired graphene-chlorophyll phototransistors with high gain

被引：93
作者：
Chen, Shao-Yu [1 ]
Lu, Yi-Ying [1 ,2 ]
Shih, Fu-Yu [1 ,3 ]
Ho, Po-Hsun [4 ]
Chen, Yang-Fang [3 ]
Chen, Chun-Wei [4 ]
Chen, Yit-Tsong [1 ,2 ]
Wang, Wei-Hua [1 ]
机构：
[1] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
[3] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan
[4] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 106, Taiwan
来源：
CARBON | 2013年 / 63卷
关键词：
LEVEL ALIGNMENT; PORPHYRINS; PLASMONICS; PHOTONICS; FILMS;
D O I：
10.1016/j.carbon.2013.06.031
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We present prominent photoresponse of bio-inspired graphene-based phototransistors sensitized with chlorophyll molecules. The hybrid graphene-chlorophyll phototransistors exhibit a high gain of 10(6) electrons per photon and a high responsivity of 10(6) A/W, which can be attributed to the integration of high-mobility graphene and the photosensitive chlorophyll molecules. The charge transfer at interface and the photogating effect in the chlorophyll layer can account for the observed photoresponse of the hybrid devices, which is confirmed by the back-gate-tunable photocurrent as well as the thickness and time dependent studies of the photoresponse. The demonstration of the graphene-chlorophyll phototransistors with high gain envisions a viable method to employ biomaterials for graphenebased optoelectronics. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：23 / 29
页数：7
相关论文
共 45 条
  • [21] Contact and edge effects in graphene devices
    Lee, Eduardo J. H.
    Balasubramanian, Kannan
    Weitz, Ralf Thomas
    Burghard, Marko
    Kern, Klaus
    [J]. NATURE NANOTECHNOLOGY, 2008, 3 (08) : 486 - 490
  • [22] Graphene-On-Silicon Schottky Junction Solar Cells
    Li, Xinming
    Zhu, Hongwei
    Wang, Kunlin
    Cao, Anyuan
    Wei, Jinquan
    Li, Chunyan
    Jia, Yi
    Li, Zhen
    Li, Xiao
    Wu, Dehai
    [J]. ADVANCED MATERIALS, 2010, 22 (25) : 2743 - +
  • [23] Molecular memories that survive silicon device processing and real-world operation
    Liu, ZM
    Yasseri, AA
    Lindsey, JS
    Bocian, DF
    [J]. SCIENCE, 2003, 302 (5650) : 1543 - 1545
  • [24] High Efficiency Graphene Solar Cells by Chemical Doping
    Miao, Xiaochang
    Tongay, Sefaattin
    Petterson, Maureen K.
    Berke, Kara
    Rinzler, Andrew G.
    Appleton, Bill R.
    Hebard, Arthur F.
    [J]. NANO LETTERS, 2012, 12 (06) : 2745 - 2750
  • [25] Organic phototransistor based on poly(3-hexylthiophene)/TiO2 nanoparticle composite
    Mok, Sheung Man
    Yan, Feng
    Chan, Helen L. W.
    [J]. APPLIED PHYSICS LETTERS, 2008, 93 (02)
  • [26] Role of contacts in graphene transistors: A scanning photocurrent study
    Mueller, T.
    Xia, F.
    Freitag, M.
    Tsang, J.
    Avouris, Ph.
    [J]. PHYSICAL REVIEW B, 2009, 79 (24):
  • [27] Fine structure constant defines visual transparency of graphene
    Nair, R. R.
    Blake, P.
    Grigorenko, A. N.
    Novoselov, K. S.
    Booth, T. J.
    Stauber, T.
    Peres, N. M. R.
    Geim, A. K.
    [J]. SCIENCE, 2008, 320 (5881) : 1308 - 1308
  • [28] Exciton diffusion length in microcrystalline chlorophyll a
    Nasr, C
    Taleb, T
    Leblanc, RM
    Hotchandani, S
    [J]. APPLIED PHYSICS LETTERS, 1996, 69 (13) : 1823 - 1825
  • [29] Neamen D.A., 1997, SEMICONDUCTOR PHYS D, V2nd
  • [30] ENERGY LEVELS IN CHLOROPHYLL AND ELECTRON TRANSFER PROCESSES
    NELSON, RC
    [J]. PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1968, 8 (05) : 441 - &
12345