Normalized Contact Force to Minimize "Electrode-Lead" Resistance in a Nanodevice

Lee, Seung‐Hoon; Bae, Jun Cheol; Lee, Seung Woo; Jang, Jaewon

doi:10.5012/bkcs.2014.35.8.2415

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…V-I measurements were carried out with minimal contact resistances. 35 Measurements of photocurrent gain were carried out by a light source using the halogen lamp with a blue-color bandpass filter (425-475 nm). The intensity of the light source was controlled by changing the lamp power, and photocurrent was measured immediately after the light irradiation.…”

Section: Opto-electrical Characteristicsmentioning

confidence: 99%

Improvement of polypyrrole nanowire devices by plasmonic space charge generation: high photocurrent and wide spectral response by Ag nanoparticle decoration

et al. 2015

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In this study, improvement of the opto-electronic properties of non-single crystallized nanowire devices with space charges generated by localized surface plasmon resonance (LSPR) is demonstrated. The photocurrent and spectral response of single polypyrrole (PPy) nanowire (NW) devices are increased by electrostatically attached Ag nanoparticles (Ag NPs). To take advantage of plasmon-exciton coupling in the photocurrent of the device, 80 nm of Ag NPs (454 nm = λmax) were chosen for matching the maximum absorption with PPy NWs (442 nm = λmax). The photocurrent density is remarkably improved, up to 25.3 times (2530%), by the Ag NP decoration onto the PPy NW (PPyAgNPs NW) under blue light (λ = 425-475 nm) illumination. In addition, the PPyAgNPs NW shows a photocurrent decay time twice that of PPy NW, as well as an improved spectral response of the photocurrent. The improved photocurrent efficiency, decay time, and spectral response resulted from the space charges generated by the LSPR of Ag NPs. Furthermore, the increasing exponent (m) of the photocurrent (JPC ∼ V(m)) and finite-differential time domain (FDTD) simulation straightforwardly indicate relatively large plasmonic space charge generation under blue light illumination. These results prove that the performance of non-single crystallized polymer nanowire devices can also be improved by plasmonic enhancement.

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Section: Opto-electrical Characteristicsmentioning

confidence: 99%

Improvement of polypyrrole nanowire devices by plasmonic space charge generation: high photocurrent and wide spectral response by Ag nanoparticle decoration

et al. 2015

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Study of a variable deposition angle effect on the structure of Ti-Pb composite coatings

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Betsofen

Alexandrova

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Growth of lead thin films on silicon and niobium substrates by sputtering technique

Gontad

Lorusso

Giulio

et al. 2017

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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In this paper, the authors report the growth of Pb thin films on both Si and Nb substrates by radio-frequency sputtering technique. Deposited films were characterized and tested to deduce the structure, the morphology, the nanomechanical properties, and also the quantum efficiency. Granular structures and large presence of voids were observed by scanning electron microscopy; moreover, the roughness and grain size of the film surface, investigated by surface probe microscopy, increased with the film thickness. Crystallographic orientation, studied by x-ray diffraction, showed the growth of polycrystalline Pb thin films and the presence of weak diffraction peaks related to penta-lead oxide (Pb5O8). The nanomechanical analysis reveals a film hardness with a value (∼1.5 GPa) well beyond the hardness of Pb bulk (0.04 GPa). Finally, twin Pb thin films deposited on Nb substrates were tested as photocathodes showing its great potentiality to be used in superconducting radio-frequency guns with a quantum efficiency of 5 × 10−5.

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Normalized Contact Force to Minimize "Electrode-Lead" Resistance in a Nanodevice

Cited by 3 publications

References 18 publications

Improvement of polypyrrole nanowire devices by plasmonic space charge generation: high photocurrent and wide spectral response by Ag nanoparticle decoration

Improvement of polypyrrole nanowire devices by plasmonic space charge generation: high photocurrent and wide spectral response by Ag nanoparticle decoration

Study of a variable deposition angle effect on the structure of Ti-Pb composite coatings

Growth of lead thin films on silicon and niobium substrates by sputtering technique

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