TITLE

Flexible room-temperature NO2 gas sensors based on carbon nanotubes/reduced graphene hybrid films

AUTHOR(S)
Hu Young Jeong; Dae-Sik Lee; Hong Kyw Choi; Duck Hyun Lee; Ji-Eun Kim; Jeong Yong Lee; Won Jong Lee; Sang Ouk Kim; Sung-Yool Choi
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/24/2010, Vol. 96 Issue 21, p213105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a flexible room temperature NO2 gas sensor consisting of vertical carbon nanotubes (CNTs)/reduced graphene hybrid film supported by a polyimide substrate. The reduced graphene film alone showed a negligible sensor response, exhibiting abnormal N–P transitions during the initial NO2 injection. A hybrid film, formed by the growth of a vertically aligned CNT array (with CNTs 20 μm in length) on the reduced graphene film surface, exhibited remarkably enhanced sensitivities with weak N–P transitions. The increase in sensitivity was mainly attributed to the high sensitivity of the CNT arrays. The outstanding flexibility of the reduced graphene films ensured stable sensing performances in devices submitted to extreme bending stress.
ACCESSION #
51059304

 

Related Articles

  • Highly sensitive NO2 sensor array based on undecorated single-walled carbon nanotube monolayer junctions. Sunglyul Maeng; Seungeon Moon; Sanghyeob Kim; Hong-Yeol Lee; So-Jeong Park; Jun-Hyuk Kwak; Kang-Ho Park; Jonghyurk Park; Youngjin Choi; Udrea, Florin; Milne, William I.; Byung Yang Lee; MinbaekLee; Seunghun Hong // Applied Physics Letters;9/15/2008, Vol. 93 Issue 11, p113111 

    Using the surface-programmed assembly technique, we have fabricated a uniform array of NO2 sensors based on undecorated single-walled carbon nanotube (SWNT) monolayer junctions. The sensitivity of the SWNT monolayer network-based sensors to NO2 gas was investigated at room temperature. We have...

  • Large-scale integration of single-walled carbon nanotubes and graphene into sensors and devices using dielectrophoresis: A review. Burg, Brian R.; Poulikakos, Dimos // Journal of Materials Research;7/14/2011, Vol. 26 Issue 13, p1561 

    Device and sensor miniaturization has enabled extraordinary functionality and sensitivity enhancements over the last decades while considerably reducing fabrication costs and energy consumption. The traditional materials and process technologies used today will, however, ultimately run into...

  • Effect of structure and morphology of carbon nanotubes on NO2 gas sensing. Muangrat, Worawut; Gallnom, Eakgapon; Issro, Chaisak; Pfeiler, Wolfgang; Pierron-Bohnes, Veronique // Songklanakarin Journal of Science & Technology;Nov-Dec2012, Vol. 34 Issue 6, p695 

    In this research, we investigated the effect of structure and morphology of carbon nanotubes (CNTs) on nitrogen dioxide (NO2) gas sensing. CNTs were synthesized by thermal chemical vapor deposition (TCVD) at different synthesis temperatures. The structure and morphology of CNTs were investigated...

  • The rational design of nitric oxide selectivity in single-walled carbon nanotube near-infrared fluorescence sensors for biological detection. Jong-Ho Kim; Heller, Daniel A.; Hong Jin; Barone, Paul W.; Song, Changsik; Jingqing Zhang; Trudel, Laura J.; Wogan, Gerald N.; Tannenbaum, Steven R.; Strano, Michael S. // Nature Chemistry;Sep2009, Vol. 1 Issue 6, p473 

    A major challenge in the synthesis of nanotube or nanowire sensors is to impart selective analyte binding through means other than covalent linkages, which compromise electronic and optical properties. We synthesized a 3,4-diaminophenyl-functionalized dextran (DAP-dex) wrapping for single-walled...

  • Functionalized carbon nanotubes-based gas sensors for pollutants detection: investigation on the use of a double transduction mode. Ndiaye, A. L.; Brunet, J.; Varenne, C.; Bonnet, P.; Pauly, A.; Dubois, M.; Guerin, K.; Lauron, B. // Key Engineering Materials;2014, Vol. 605, p75 

    With an objective to fabricate Carbon nanotubes (CNTs) based sensors, the solution route is investigated. The dispersion routes are chosen here to avoid the CNTs to form bundles which can reduce their surface area. The results show that SWNTs-based gas sensors made by the surfactant method is...

  • Collision of a suddenly released bent carbon nanotube with a circular graphene sheet. Duan, W. H.; Wang, C. M.; Tang, W. X. // Journal of Applied Physics;Apr2010, Vol. 107 Issue 7, p074303 

    Molecular dynamics (MD) simulations were used to investigate the mechanical strain energy release of a bent single wall carbon nanotube (CNT) and its mechanical collision with a circular graphene sheet that is fixed at its edges. The MD simulations show that the CNT is able to store a vast...

  • Superplants may be. Investor's Business Daily // Investors Business Daily;3/28/2014, pA02 

    Superplants may be created using nanotech. MIT researchers were able to boost plants' ability to capture light energy 30% by embedding carbon nanotubes in the plants' chloroplast, the part of the plant where photosynthesis takes place. Using another type of carbon nanotube, they also modified...

  • Partially unzipped carbon nanotubes as magnetic field sensors. Costamagna, S.; Schulz, A.; Covaci, L.; Peeters, F. // Applied Physics Letters;6/4/2012, Vol. 100 Issue 23, p232104 

    The conductance through graphene nanoribbons (GNR) connected to a partially unzipped carbon nanotube (CNT) is studied in the presence of an external magnetic field applied parallel to the long axis of the tube by means of non-equilibrium Green's function technique. We consider CNTs that are...

  • USE OF ALIGNED CARBON NANOTUBES AS ELECTRIC FIELD SENSORS. Chieh-Lien Lu; Hsin-Jung Tsai; Bee-Yu Wei; Wen-Kuang Hsu // Progress in Electromagnetics Research;2013, Vol. 137, p439 

    Application of electric field in normal to aligned carbon nanotubes creates Coulomb forces at intertube junctions and tubes become closely packed. Packed structure facilitates intertube transfer of carriers and reduced resistance is found to scale with field strength. Aggregated nanotubes are...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics