transparent conducting films by using carbon nanotubes

... α-Fe2O3 nanotubes fabricated using carbon nanotube templates Adv Mater 2005, 17:2993 10 Ju S, Lee JM, Jung Y, Lee E, Lee W, Kim S: Highly sensitive hydrogen gas sensors using single-walled carbon nanotubes ... sensor array based on metal-decorated carbon nanotubes J Phys Chem B 2006, 110:21014 15 Li J, Lu Y, Ye Q, Delzeit L, Meyyappan M: A gas sensor array using carbon nanotubes and microfabrication technology ... Hydrogen sensors based on carbon nanotubes thin films Synth Met 2005, 148:15 19 Sippel-Oakley J, Wang HT, Kang BS, Wu Z, Ren F, Rinzler AG, Pearton SJ: Carbon nanotube films for room temperature...

Ngày tải lên: 20/06/2014, 22:20

... of carbide nanofibres via templated reactions on carbon nanotubes in molten salt media Carbon 2009, 47:201-208 19 Charlier JC: Defects in carbon nanotubes Acc Chem Res 2002, 35:1063-1069 20 Mintmire ... heating The carbon then diffuses into the Me-Ti liquid, and when a critical concentration is achieved, the TiCx begins to form by reaction between [C] and [Ti] Accordingly, the diffusion of carbon ... following study, by using CNT as C source, we have successfully in situ synthesized the TiCx nanoparticles in 97 wt.% Cu matrix, and the composite was fabricated conveniently by the SHS and a...

Ngày tải lên: 21/06/2014, 00:20

... production of carbon nanotubes in a thermogravimetric CVD reactor Surf Coat Tech 2001, 9226–9231 (2007) 12 V Raffa, G Ciofani, S Nitodas, T Karachalios, Carbon, Can pristine properties of carbon nanotubes ... substrate and initiate cell migration towards the magnetic source Conclusion Carbon nanotubes produced by CCVD of hydrocarbon sources on substrates impregnated with metal catalysts entrap at their ... support using the FIB microscope References S Iijima, Helical microtubules of graphitic carbon Nature 354, 56–58 (1991) R Saito, G Dresselhaus, M.S Dresselhaus, in Physical Properties of Carbon Nanotubes...

Ngày tải lên: 22/06/2014, 00:20

... types of carbon nanotubes: single- 11 walled nanotubes (SWNTs) and multi-walled nanotubes (MWNTs), which means they may have a single cylinder or two or more concentric cylinders These carbon nanotubes ... nanotubes can be adjusted simply by the choice of the amino acid side chain functionalities and the size of the peptide subunit employed Just like carbon nanotubes, certain kinds of peptide nanotubes ... the peptide nanotubes by reducing anchored Pt ions 41 Figure 3.2 Raman spectra of (a) Pt2+-immobilized peptide nanotubes in pH = solution, (b) Pt2+-immobilized peptide nanotubes in...

Ngày tải lên: 13/11/2014, 16:27

... fabricated an electrochemical DNA biosensor based on electropolymerised polypyrrole and carbon nanotubes, using ethidium bromide as redox indicator with high sensitivity, ca 85 pM Very few works ... known to suffer from lack of sensitivity (Cosnier and Holzinger, 2011) To enhance sensitivity, carbon nanotubes (CNTs) were frequently reported (Wohlstadter et al., 2003; Wang, 2005) to increase ... sensitivity (0.1 fM) was obtained using peptide nucleic acid (PNA) probes (Zhang et al., 2009) Qavi et al (2010) proposed an excellent review on miRNA analysis Conducting polymers constitute a...

Ngày tải lên: 02/07/2014, 14:14

... P-type transparent conducting Cu-Al-O thin films 76 Chapter Properties of Cu-Al-O films grown from acac precursors Wang Yue (1.806Å) in all the films, except the film grown ... P-type transparent conducting Cu-Al-O thin films 77 Chapter Properties of Cu-Al-O films grown from acac precursors Wang Yue (a) (b) (c) Figure 4-17 Morphology of 350°C annealed films which ... P-type transparent conducting Cu-Al-O thin films 81 Chapter Properties of Cu-Al-O films grown from acac precursors Wang Yue optical bandgap cannot be explained by the change of carrier...

Ngày tải lên: 16/09/2015, 17:11

... the films prepared from dpm precursors versus growth temperature P-type transparent conducting Cu-Al-O thin films 111 Chapter Properties of Cu-Al-O films ... indicated p-type conductivity of the films P-type transparent conducting Cu-Al-O thin films 112 Chapter Properties of Cu-Al-O films grown from dpm precursors ... P-type transparent conducting Cu-Al-O thin films 114 Chapter Properties of Cu-Al-O films grown from dpm precursors Wang Yue Table 5-3 Seebeck coefficients of the as-deposited films prepared...

Ngày tải lên: 16/09/2015, 17:11

... _ P-type transparent conducting Cu-Al-O thin films 11 Chapter Literature Review Wang Yue Chapter Literature Review The first transparent conducting oxide was reported in 1907 by Badeker.1 ... investigation 2.2 Transparent P-type Conducting Oxide Films Until now, there have been only a few reports about the preparation of p-type TCO films Sato et al.12 obtained semi -transparent conducting ... Introduction 1.1 Transparent Conducting Oxides (TCOs) Transparent conducting oxides (TCOs) are indispensable in applications requiring contacts that are electrically conductive and optically transparent...

Ngày tải lên: 16/09/2015, 17:11

... 1300°C, the coated carbon grew to become large carbon sheets, as shown in the bottom image in Fig 4b Even the nanowires were completely carbonized and mixed into a lot of carbon sheets to form ... more stable than any other bulk carbon structures However, if the substrate temperature was high enough ($1000°C) so that SiC can be formed by carbon atoms di using into the Si NWs, CNTs could ... nanowires and the fast carbon deposition to form the carbon- like structure Conclusions In summary, CNTs encapsulated crystalline SiNWs were synthesized by the HFCVD method At $900°C, carbon multilayers...

Ngày tải lên: 16/03/2014, 15:04

... carbon nanotubes: experiment and theory, J Chem Phys 119 (20) (2003) 10904–10910 [4] M.D Ellison, M.J Crotty, D.H Koh, R.L Spary, K.E Tate, Adsorption of NH3 and NO2 on single-walled carbon nanotubes, ... single-walled carbon nanotube, Chem Phys Lett 398 (2004) 297–303 N.I Kovtyukhova, T.E Mallouk, L Pan, E.C Dickey, Individual single-walled nanotubes and hydrogels made by oxidative exfoliation of carbon ... Eriksson, Effect of ozone oxidation on single-walled carbon nanotubes, J Phys Chem B 110 (2006) 7113–7118 J Li, Y Lu, Q Ye, M Cinke, J Han, M Meyyappan, Carbon nanotube sensors for gas and organic vapor...

Ngày tải lên: 19/03/2014, 16:47

... pristine PANI was synthesized using the MWCNTs-f-PANI synthesis protocol but without using MWCNTs-DABSA 2.5 Dispersion of Au or Ag nanoparticles into PANI functionalized carbon nanotubes (MWCNTs-f-PANI/Au ... CNTs (Fig 1b) and MWCNTs-f-PANI (Fig 1d and e) also clearly indicates that the carbon nanotubes were encapsulated by ordered PANI chains In addition, it can be clearly seen from Figs and that ... corresponding monomers with AuCl3 or AgNO3 using a one step polymerization method where the monomer acts as reductant of the metal ions [31,32] The composite obtained by this method has some disadvantages;...

Ngày tải lên: 05/05/2014, 15:26

... 8a are assigned to carbon nanotubes Figure 8b shows an overlap of reflections from the carbon nanotubes and crystal structure related to the particles encapsulated into the nanotubes The detailed ... graphitic carbon Nature 1991, 354:56-58 Saito Y, Uemura S: Field emission from carbon nanotubes and its application to electron sources Carbon 2000, 38:169-182 Anantram M, L´eonard F: Physics of carbon ... synthesis of carbon nanotubes Chem Mat 2001, 13:1008-1014 11 Tang S, Zhong Z, Xiong Z, Sun L, Liu L, Lin J, Shen ZX, Tan KL: Controlled growth of single-walled carbon nanotubes by catalytic decomposition...

Ngày tải lên: 20/06/2014, 20:20

... = 1/2 [39] The optical bandgap energy for our films is closest to films deposited by spray pyrolysis (3.26 eV) [41] and close to films deposited by other methods such as CVD (3.19 to 3.23 eV) ... nanocrystalline ZnO:Ga films deposited by plasmaenhanced chemical vapor deposition Thin Solid Films 2005, 473:35-40 36 Cebulla R, Wendt R, Ellmer K: Al-doped zinc oxide films deposited by simultaneous ... nanocrystalline ZnO films on crystalline and amorphous substrates using a fast thermal plasma CVD process that is preceded by inductive heating SEM indicates that the ZnO films deposited on ceramic...

Ngày tải lên: 20/06/2014, 22:20

... Imaging of Excitons in Single-Walled Carbon Nanotubes Nano Lett 2005, 5:2310 11 Roy D, Williams C: High resolution Raman imaging of single wall carbon nanotubes using electrochemically etched gold ... single wall carbon nanotubes bundle Phys Status Solidi B 2010, 247:2818 Hayazawa N, Yano T, Watanabe H, Inouye Y, Kawata S: Detection of an individual single-wall carbon nanotube by tip-enhanced ... applied to single-walled carbon nanotubes Chem Phys Lett 2005, 410:136 Hartschuh A, Qian H, Meixner AJ, Anderson AJ, Novotny L: Nanoscale optical imaging of single-walled carbon nanotubes J Luminesc...

Ngày tải lên: 21/06/2014, 05:20

... architectures of aligned carbon nanotubes by an injection chemical vapour deposition method Carbon 2003, 41:359 Sharon M, Hsu WK, Kroto HW, Walton DRM: Camphor-based carbon nanotubes as an anode ... Provencio PN: Synthesis of Large Arrays of Well-Aligned Carbon Nanotubes on Glass Science 1998, 282:1105 Sen R, Govindaraj A, Rao CNR: Carbon nanotubes by the metallocene route Chem Phys Lett 1998, 277:276 ... distribution of carbon nanotubes grown from camphor on a zeolite support Carbon 2005, 43:533 15 Ghosh P, Afre RA, Soga T, Jimbo T: A simple method of producing singlewalled carbon nanotubes from...

Ngày tải lên: 21/06/2014, 06:20

... prepared by electron beam evaporation [28] Direct fabrication of metal catalyst film served as active phase for CNT growth is still an open question In this contribution, we developed a method using ... gaseous by- products, monolayer iron compounds were adsorbed As ozone oxidized the iron compounds, monolayer iron oxides were obtained during a cycle After a purge to evacuate ozone and byproducts, ... Characterization Experimental Preparation of Catalyst Film by ALD Method Silicon wafer (with 700 nm SiO2 layer) coated with 10-nmthick Al2O3 by e-beam evaporation and quartz fibers with a diameter...

Ngày tải lên: 21/06/2014, 17:20

... multi-walled carbon nanotubes (MWCNTs) and organized carbon in the sample The relatively high intensity of the D band relative to G band (ID/IG = 0.72) indicates mass amorphous carbon content ... and more amorphous carbons are formed, and when the growth temperature increases to 950 °C, only a few SWCNTs are shown in the results and are coated by plenty of amorphous carbons Conclusions ... the results show high-quality SWCNTs have been synthesized at 900 °C By increasing growth temperature to 950 °C, more amorphous carbons are formed in the SWCNTs bundles due to the self-decomposition...

Ngày tải lên: 22/06/2014, 00:20

... the side walls of single wall carbon nanotubes (SWCNTs) and use these surface-modified SWCNTs as substrate to fabricate SiO2-coated SWCNTs (SWCNT@SiO2) nanocomposite by the co-condensation reaction ... Experimental Modification of SWCNT by Plasma Treatment The SWCNTs commercially obtained from Carbon Nanotechnologies Inc were firstly dispersed in mL of acetone by sonication When the acetone was ... SWCNT@SiO2 are about 14 and nm respectively determined by TEM observations Moreover, no more free Fig FTIR spectra of single wall carbon nanotubes before (a) and after (b) plasma treatment 123...

Ngày tải lên: 22/06/2014, 00:20

... Scientific ESCALAB 250) were utilized EC measurements were carried out using an Autolab potentiostat system in a threeelectrode set up using Pt wire and reversible hydrogen electrode (RHE) as the counter ... undoped ones Fig X-Ray diffraction pattern of Pt nanoparticles (NPs) immobilized on N-doped carbon nanotubes (CNTs) and undoped ones To understand the bonding of Pt NPs on N-doped and undoped ... Fe film was deposited on Si substrates by sol–gel method as catalyst prior to CNTs growth step Then, aligned CNTs were grown on the precoated substrates by microwave plasma-enhanced chemical-vapor...

Ngày tải lên: 22/06/2014, 00:20