Deposition of Germanium Nanowires from Hexamethyldigermane: Influence of the Substrate Pretreatment

2010 ◽  
Vol 157 (10) ◽  
pp. K218 ◽  
Author(s):  
V. Dřínek ◽  
R. Fajgar ◽  
M. Klementová ◽  
J. Šubrt
Keyword(s):  
Germanium Nanowires ◽  
Substrate Pretreatment

Deposition of Germanium Nanowires from Digermane Precursor: Influence of the Substrate Pretreatment

2019 ◽  
Vol 25 (8) ◽  
pp. 1015-1022
Author(s):  
Vladislav Dřínek ◽  
Radek Fajgar ◽  
Mariana Klementová ◽  
Jan Subrt
Keyword(s):  
Germanium Nanowires ◽  
Substrate Pretreatment

scholarly journals Germanium Nanowires as Sensing Devices: Modelization of Electrical Properties

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 507
Author(s):  
Luca Seravalli ◽  
Claudio Ferrari ◽  
Matteo Bosi
Keyword(s):  
Charge Transfer ◽  
Electrical Properties ◽  
Surface Charges ◽  
Molecular Sensing ◽  
Germanium Nanowires ◽  
Physical Mechanisms ◽  
Additional Doping ◽  
Different Types ◽  
N Doping ◽  
Very High

In this paper, we model the electrical properties of germanium nanowires with a particular focus on physical mechanisms of electrical molecular sensing. We use the Tibercad software to solve the drift-diffusion equations in 3D and we validate the model against experimental data, considering a p-doped nanowire with surface traps. We simulate three different types of interactions: (1) Passivation of surface traps; (2) Additional surface charges; (3) Charge transfer from molecules to nanowires. By analyzing simulated I–V characteristics, we observe that: (i) the largest change in current occurs with negative charges on the surfaces; (ii) charge transfer provides relevant current changes only for very high values of additional doping; (iii) for certain values of additional n-doping ambipolar currents could be obtained. The results of these simulations highlight the complexity of the molecular sensing mechanism in nanowires, that depends not only on the NW parameters but also on the properties of the molecules. We expect that these findings will be valuable to extend the knowledge of molecular sensing by germanium nanowires, a fundamental step to develop novel sensors based on these nanostructures.

Single-step synthesis of germanium nanowires encapsulated within multi-walled carbon nanotubes

Carbon ◽  
2009 ◽  
Vol 47 (7) ◽  
pp. 1708-1714 ◽  
Author(s):  
A. Pandurangan ◽  
Cedric Morin ◽  
Dali Qian ◽  
Rodney Andrews ◽  
Mark Crocker
Keyword(s):  
Carbon Nanotubes ◽  
Single Step ◽  
Germanium Nanowires ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Highly transparent nano-crystalline diamond films via substrate pretreatment and methane fraction optimization

1998 ◽  
Vol 332 (1-2) ◽  
pp. 34-39 ◽  
Author(s):  
K.H. Chen ◽  
D.M. Bhusari ◽  
J.R. Yang ◽  
S.T. Lin ◽  
T.Y. Wang ◽  
...  
Keyword(s):  
Diamond Films ◽  
Substrate Pretreatment ◽  
Nano Crystalline
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