Single electron tunneling and manipulation of nanoparticles on surfaces at room temperature

Yang, Guang; Tan, Li; Yang, Yiyun; Chen, Shaowei; Liu, Gang-yu

doi:10.1016/j.susc.2005.05.061

Cited by 38 publications

(43 citation statements)

References 28 publications

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“…The particles were deposited onto the substrate surface using the dropcast method. The intercalation between the alkyl chains of the self-assembled monolayers and the dithiocarbamate ligands helped immobilize the particles and thus minimize the drifting in STM measurements [40]. A mechanically cut Pt/Ir tip was used in STM measurements.…”

Section: Stm Studiesmentioning

confidence: 99%

Dithiocarbamate-protected ruthenium nanoparticles: Synthesis, spectroscopy, electrochemistry and STM studies

Chen

Ghosh

Sun

et al. 2007

Electrochimica Acta

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Section: Stm Studiesmentioning

confidence: 99%

Dithiocarbamate-protected ruthenium nanoparticles: Synthesis, spectroscopy, electrochemistry and STM studies

Chen

Ghosh

Sun

et al. 2007

Electrochimica Acta

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“…Metal nanoparticle thin films (MNFs) have been intensively investigated for use in gas sensing devices due to their unique physical and chemical properties [1][2][3] . It has been demonstrated that the conduction of MNFs is controlled by quantum electron tunnelling effects [3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

“…It has been demonstrated that the conduction of MNFs is controlled by quantum electron tunnelling effects [3][4][5][6][7] . Theoretical studies of…”

Section: Introductionmentioning

confidence: 99%

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Laser Ablation Direct Writing of Metal Nanoparticles for Hydrogen and Humidity Sensors

et al. 2010

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A UV pulsed laser writing technique to fabricate metal nanoparticle patterns on low-cost substrates is demonstrated. We use this process to directly write nano-particle gas sensors, which operate via quantum tunnelling of electrons at room temperature across the device. The advantages of this method are: no lithography requirements, high precision nanoparticle placement and room temperature processing in atmospheric conditions. Palladium based nanoparticle sensors are tested for the detection of water vapour and Hydrogen within controlled environmental chambers. The electrical conduction mechanism responsible for the very high sensitivity of the devices is discussed with regard to the inter-particle capacitance and the tunnelling resistance.2

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“…At present, the wet chemical synthesis has the unique superiority in a high yield to synthesize the regular shape nanoparticles [19] . These regular nanoparticles were assembled well into the two-or three-dimensional nanometer structure [20,21] and built a good block for the future nanometer electronic device [22][23][24][25][26][27] . Although the colloid chemistry researchers have controlled to synthesize the different sizes and shapes of nanoparticles in each kind of metal as well as in the semi-conducting material [28,29] , controlling shape synthesis in present is still a challenging task, especially the small regular shape nanoparticles because they are required to grasp various components and their interaction in the reacting system [30,31] .…”

mentioning

confidence: 99%

Shape-controlled synthesis of highly monodisperse and small size gold nanoparticles

Fu¹,

Du²,

Yang³

et al. 2007

SCI CHINA SER B

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We describe here that fine control of nanoparticle shape and size can be achieved by systematic variation of experimental parameters in the seeded growth procedure in aqueous solution. Cubic and spherical gold nanoparticles are obtained respectively. In particularly, the Au cubes are highly monodisperse in 33±2 nm diameter. The experimental methods involve the preparation of Au seed particles and the subsequent addition of an appropriate quantity of Au seed solution to the aqueous growth solutions containing desired quantities of CTAB and ascorbic acid (AA). Here, AA is a weak reducing agent and CTAB is not only a stable agent for nanoparticles but also an inductive agent for leading increase in the face of nanoparticle. Ultraviolet visible spectroscopy (UV-vis), X-ray diffraction (XRD), transmission electron microscopy (TEM) are used to characterize the nanoparticles. The results show that the different size gold nanoparticles displayed high size homogenous distribution and formed mono-membrane at the air/solid interface.Au cubes, seed, grow up, cetyltrimethylammoniumbromide (CTAB), ascorbic acid (AA)Recently, nanoscale materials have attracted extensive attentions due to their tremendous applications in the fields of optics, electro-magnetics, and electronics biomedicine and so on [1][2][3][4][5][6][7][8][9][10][11] . The researcher's troop is expanding unceasingly in chemistry, material science, physics and biology. The size and shape of nanoparticles have limited the nanometer material application. Therefore, to control the size and shape of nanoparticles is especially important.Many researches had already concentrated on controlling the size and shape of nanoparticles, synthesis condition and methods such as nano-cube [12] , nanowire [13] , nano-rod [14,15] , branched nanoparticles [16] , triangle nanoparticles [17] , and plate nanometer structure [18] and so on. At present, the wet chemical synthesis has the unique superiority in a high yield to synthesize the regular shape nanoparticles [19] . These regular nanoparticles were assembled well into the two-or three-dimensional nanometer structure [20,21] and built a good block for the future nanometer electronic device [22][23][24][25][26][27] . Although the colloid chemistry researchers have controlled to synthesize the different sizes and shapes of nanoparticles in each kind of metal as well as in the semi-conducting material [28,29] , controlling shape synthesis in present is still a challenging task, especially the small regular shape nanoparticles because they are required to grasp various components and their interaction in the reacting system [30,31] .Although Murphy group [32,33] had already reported the synthesis of the cube Cu 2 O and nano-rod by the seed increasing in aqueous colloid. Au hexahedron and decahedron had synthesized already by continuous steam sedimentation [34] . The report of branched nanogold has been on emerging incessantly in the colloid chemistry [35] . But their size is very big and the distribution of nanoparticles' sizes is mu...

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Single electron tunneling and manipulation of nanoparticles on surfaces at room temperature

Cited by 38 publications

References 28 publications

Dithiocarbamate-protected ruthenium nanoparticles: Synthesis, spectroscopy, electrochemistry and STM studies

Dithiocarbamate-protected ruthenium nanoparticles: Synthesis, spectroscopy, electrochemistry and STM studies

Laser Ablation Direct Writing of Metal Nanoparticles for Hydrogen and Humidity Sensors

Shape-controlled synthesis of highly monodisperse and small size gold nanoparticles

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