Near-infrared photoresponse in single-walled carbon nanotube/polymer composite films

被引：17
|
作者：
Sarker, Biddut K.
Arif, M.
Khondaker, Saiful I. [1 ]
机构：
[1] Univ Cent Florida, Nanosci Technol Ctr, Orlando, FL 32826 USA
来源：
CARBON | 2010年 / 48卷 / 05期
基金：
美国国家科学基金会;
关键词：
NANOTUBES; PHOTOCONDUCTIVITY;
D O I：
10.1016/j.carbon.2009.11.065
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 a near-infrared photoresponse study of single-walled carbon nanotube/poly(3-hexylthiophene)-block-polystyrene polymer (SWCNT/P3HT-b-PS) composite films for different loading ratios of SWCNT in the polymer matrix Compared to the pure SWCNT film, the photoresponse [flight current - dark current)/dark current) is much larger in the SWCNT/polymer composite films The photoresponse is up to 157% when SWCNTs are embedded in P3HT-b-PS while for a pure SWCNT film it is only 40% We also show that the photocurrent strongly depends on the position of the laser spot with maximum photocurrent occurring at the metal-film interface we explain the photoresponse due to exciton dissociations and charge carner separation caused by a Schottky barrier at the metallic electrode-SWCNT interface (C) 2009 Elsevier Ltd All rights reserved
引用
收藏
页码：1539 / 1544
页数：6
相关论文
共 50 条
  • [31] Single-walled carbon nanotube fibers, films and balls
    Guan, Lunhui
    Li, Huanjun
    Shi, Zujin
    Gu, Zhennan
    SOLID STATE COMMUNICATIONS, 2007, 141 (08) : 459 - 463
  • [32] Characteristics of electrodeposited single-walled carbon nanotube films
    Kim, Sung-Kyoung
    Choi, Hee-Young
    Lee, Ha-Jin
    Lee, Haiwon
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2006, 6 (11) : 3614 - 3618
  • [33] Thermoelectric power of single-walled carbon nanotube films
    Romero, HE
    Sumanasekera, GU
    Mahan, GD
    Eklund, PC
    PHYSICAL REVIEW B, 2002, 65 (20) : 1 - 6
  • [34] Electrical properties of single-walled carbon nanotube films
    Ural, Ant
    NANOMATERIAL SYNTHESIS AND INTEGRATION FOR SENSORS, ELECTRONICS, PHOTONICS, AND ELECTRO-OPTICS, 2006, 6370
  • [35] Purification and Preparation of Single-Walled Carbon Nanotube Films
    Manivannan, S.
    Jeong, Il Ok
    Ryu, Je Hwang
    Lee, Chang Seok
    Jang, Jin
    Park, Kyu Chang
    Kim, Ki Seo
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2008, 53 (05) : 2549 - 2553
  • [36] The rational design of nitric oxide selectivity in single-walled carbon nanotube near-infrared fluorescence sensors for biological detection
    Kim, Jong-Ho
    Heller, Daniel A.
    Jin, Hong
    Barone, Paul W.
    Song, Changsik
    Zhang, Jingqing
    Trudel, Laura J.
    Wogan, Gerald N.
    Tannenbaum, Steven R.
    Strano, Michael S.
    NATURE CHEMISTRY, 2009, 1 (06) : 473 - 481
  • [37] The rational design of nitric oxide selectivity in single-walled carbon nanotube near-infrared fluorescence sensors for biological detection
    Kim J.-H.
    Heller D.A.
    Jin H.
    Barone P.W.
    Song C.
    Zhang J.
    Trudel L.J.
    Wogan G.N.
    Tannenbaum S.R.
    Strano M.S.
    Nature Chemistry, 2009, 1 (6) : 473 - 481
  • [38] Effect on near-infrared absorption spectra of DNA/single-walled carbon nanotube (SWNT) complexes by adsorption of a blocking reagent
    Matsukawa, Yuji
    Ohura, Shusuke
    Umemura, Kazuo
    COLLOIDS AND SURFACES B-BIOINTERFACES, 2020, 193
  • [39] Aligned and unaligned single-walled carbon nanotube bilayer films for uncooled infrared sensors
    Kosaka, Mayumi
    Miyamoto, Toshie
    Someya, Hiroko
    Miyazaki, Takashi
    Yuge, Ryota
    CARBON, 2024, 224
  • [40] Ultraviolet and infrared studies of the single-walled and multi-walled carbon nanotube films with different thickness
    Abouelsayed, A.
    Eisa, Wael H.
    Dawy, M.
    Shabaka, A.
    PHYSICA B-CONDENSED MATTER, 2016, 483 : 8 - 12
12345