scholarly journals Influence of SiO2 Layer on the Dielectric Function of Gold Nanoparticles on Si Substrate

2012 ◽  
Vol 15 (1) ◽  
pp. K5 ◽  
Author(s):  
S. Zhu ◽  
T. P. Chen ◽  
Y. C. Liu ◽  
Y. Liu ◽  
S. F. Yu
Keyword(s):  
Gold Nanoparticles ◽  
Dielectric Function ◽  
Sio2 Layer ◽  
Si Substrate

The reaction of amorphous Ni-Nb films with Si in the presence of a native SiO2 layer

1990 ◽  
Vol 48 (4) ◽  
pp. 664-665
Author(s):  
N. Rozhanski ◽  
A. Barg
Keyword(s):  
High Temperature ◽  
Crystallization Temperature ◽  
Diffusion Barriers ◽  
Sio2 Layer ◽  
Si Substrate ◽  
Cross Sectional ◽  
Plan View ◽  
Temperature Range ◽  
Sputter Deposited

Amorphous Ni-Nb alloys are of potential interest as diffusion barriers for high temperature metallization for VLSI. In the present work amorphous Ni-Nb films were sputter deposited on Si(100) and their interaction with a substrate was studied in the temperature range (200-700)°C. The crystallization of films was observed on the plan-view specimens heated in-situ in Philips-400ST microscope. Cross-sectional objects were prepared to study the structure of interfaces.The crystallization temperature of Ni5 0 Ni5 0 and Ni8 0 Nb2 0 films was found to be equal to 675°C and 525°C correspondingly. The crystallization of Ni5 0 Ni5 0 films is followed by the formation of Ni6Nb7 and Ni3Nb nucleus. Ni8 0Nb2 0 films crystallise with the formation of Ni and Ni3Nb crystals. No interaction of both films with Si substrate was observed on plan-view specimens up to 700°C, that is due to the barrier action of the native SiO2 layer.

Size dependence of the dielectric function of silicon-supported plasmonic gold nanoparticles

2010 ◽  
Vol 82 (15) ◽  
Author(s):  
Maria Losurdo ◽  
Maria M. Giangregorio ◽  
Giuseppe V. Bianco ◽  
Alexandra A. Suvorova ◽  
Charlie Kong ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Dielectric Function ◽  
Size Dependence

Characterization of Different Sequences of DNA on Si Substrate by Atomic Force Microscopy and Gold Nanoparticle Labeling

2007 ◽  
Vol 7 (2) ◽  
pp. 418-423 ◽  
Author(s):  
Rong Jin ◽  
Xiaoxiao He ◽  
Kemin Wang ◽  
Liu Yang ◽  
Huimin Li ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Atomic Force Microscopy ◽  
Single Strand ◽  
Si Substrate ◽  
Force Microscopy ◽  
Atomic Force ◽  
Afm Imaging ◽  
On Chip ◽  
Micrometer Scale

In this paper, different sequences of single-strand DNA modified on Si substrate were studied taking advantages of the high resolution of atomic force microscopy (AFM) and signal enhancement of gold nanoparticles. Two sequences of single-strand DNA, as a model, were immobilized on Si substrate and hybridized with their sequence-complementary DNA molecules modified respectively with two sizes of gold nanoparticles. The surface of Si substrate was characterized through detecting the size and coverage of gold nanoparticles by AFM. Results demonstrated that different sizes of gold nanoparticles represented different sequences of DNA immobilized on the substrate. Density and distribution of DNA on Si substrate can be investigated by AFM imaging using gold nanoparticles as topographic markers. Compared to other sensitive methods such as fluorescence energy transfer, X-ray photoelectron, and radiolabeling experiments, this approach is advantageous in terms of high spatial resolution in sub-micrometer scale. This new method will be beneficial in the characterization of DNA immobilized on chip surfaces.

Fabrication of large‐area ordered array of gold nanoparticles on c‐Si substrate and its characterisation through reflectance spectra

2016 ◽  
Vol 11 (12) ◽  
pp. 819-821 ◽  
Author(s):  
Karishma Meena ◽  
Hanish Kumar ◽  
Arjyajyoti Goswami ◽  
Sivanandam Aravindan ◽  
Paruchuri Venkateshwara Rao
Keyword(s):  
Gold Nanoparticles ◽  
Reflectance Spectra ◽  
Si Substrate ◽  
Large Area ◽  
Ordered Array

Extinction-to-Absorption Ratio for Sensitive Determination of the Size and Dielectric Function of Gold Nanoparticles

ACS Nano ◽  
2020 ◽  
Vol 14 (12) ◽  
pp. 17597-17605
Author(s):  
Aleksa Djorović ◽  
Steven J. Oldenburg ◽  
Johan Grand ◽  
Eric C. Le Ru
Keyword(s):  
Gold Nanoparticles ◽  
Dielectric Function ◽  
Absorption Ratio ◽  
Sensitive Determination

scholarly journals Study on Optical Reflection Property from Multilayer on Si Substrate Including Nanoparticles in SiO2 Layer

Shinku ◽  
2003 ◽  
Vol 46 (9) ◽  
pp. 698-702
Author(s):  
Nobutoshi ARAI ◽  
Hiroshi TSUJI ◽  
Masanori MOTONO ◽  
Hiromitsu SUGAWARA ◽  
Takuya MATSUMOTO ◽  
...  
Keyword(s):  
Sio2 Layer ◽  
Si Substrate ◽  
Optical Reflection ◽  
Reflection Property
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