Study on Fabrication and Characterization of Nanometer Scale MIM Tunneling Junction

2007 ◽  
Author(s):  
Qinggang Liu ◽  
Qing Chen ◽  
Chaoyan Zhang ◽  
Sen Qi ◽  
Botao He ◽  
...  
Keyword(s):  
Room Temperature ◽  
Scanning Speed ◽  
Nanometer Scale ◽  
Exponential Dependence ◽  
Tunneling Junction ◽  
Photoconductive Switch ◽  
Tunneling Mechanism ◽  
Fabrication And Characterization ◽  
Tunneling Junctions

In order to illustrate the effect of the TiOx wires’ characters on the tunneling phenomenon in room temperature and to determine the narrowest TiOx wire as well as its forming conditions which cannot lead to the breakdown of the tunneling junction, the fabrication and tunneling mechanism are analyzed. The TiOx wires with different widths are fabricated by changing the ambient humidity and keeping the scanning speed, oxygen concentration and applied voltage at the same value. The I-V characteristics of tunneling junctions with different width are measured. The results indicate that the narrowest TiOx wire with line width about 16nm can be fabricated between two electrodes of the ultra fast photoconductive switch when the voltage between two electrodes is 6V, which cannot leads to the breakdown of the tunneling junction. It is also found that at room temperature, I-V characteristics of tunneling junctions between two electrodes follows exponential dependence evidently.

scholarly journals Fabrication and Characterization of Planar-Type Top-Illuminated InP-Based Avalanche Photodetector on Conductive Substrate with Operating Speeds Exceeding 10 Gbps

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2800 ◽  
Author(s):  
Jheng-Jie Liu ◽  
Wen-Jeng Ho ◽  
Cho-Chun Chiang ◽  
Chi-Jen Teng ◽  
Chia-Chun Yu ◽  
...  
Keyword(s):  
High Speed ◽  
Room Temperature ◽  
Modulation Frequency ◽  
Dynamic Performance ◽  
Epitaxial Structure ◽  
Data Rates ◽  
Conductive Substrate ◽  
Fabrication And Characterization ◽  
Electric Field Profile

This paper presents a high-speed top-illuminated InP-based avalanche photodetector (APD) fabricated on conductive InP-wafer using planar processes. The proposed device was then evaluated in terms of DC and dynamic performance characteristics. The design is based on a separate absorption, grading, charge, and multiplication (SAGCM) epitaxial-structure. An electric field-profile of the SAGCM layers was derived from the epitaxial structure. The punch-through voltage of the SAGCM APD was controlled to within 16–17 V, whereas the breakdown voltage (VBR) was controlled to within 28–29 V. We obtained dark current of 2.99 nA, capacitance of 0.226 pF, and multiplication gain of 12, when the APD was biased at 0.9 VBR at room temperature. The frequency-response was characterized by comparing the calculated 3-dB cut-off modulation-frequency (f3-dB) and f3-dB values measured under various multiplication gains and modulated incident powers. The time-response of the APD was evaluated by deriving eye-diagrams at 0.9 VBR using pseudorandom non-return to zero codes with a length of 231-1 at 10–12.5 Gbps. There was a notable absence of intersymbol-interference, and the signals remained error-free at data-rates of up to 12.5 Gbps. The correlation between the rise-time and modulated-bandwidth demonstrate the suitability of the proposed SAGCM-APD chip for applications involving an optical-receiver at data-rates of >10 Gbps.

Fabrication and Characterization of Aramid/Aerogel Composite

2015 ◽  
Vol 1096 ◽  
pp. 435-440
Author(s):  
Li Rong Yao ◽  
Juan Ren ◽  
Shan Qing Xu
Keyword(s):  
Room Temperature ◽  
Solvent System ◽  
Short Fiber ◽  
Thermal Bonding ◽  
Aerogel Composite ◽  
Fabrication And Characterization ◽  
High Shearing ◽  
Good Heat ◽  
Weight Proportion

The LiCl/DMAc was used as solvent system to dissolve meta-aramid short fiber, the aramid fibrid was prepared by injecting the aramid solution into the high shearing coagulant at room temperature and the mixture of water and N, N-dimethylacetamide (DMAc) was used as coagulant. The aramid fibrid and aramid short fiber were mixed at differents weight proportion, wet paper was dried and aramid paper was prepared by heat pressing. The aramid paper has excellent mechanical properties when the weight proportion of the aramid fibrid and aramid short fiber was 60:40,and it had a good thermal bonding between the fibrid and fiber under heat pressing. The hydrophobic SiO2 was mixed with aramid fibrid and aramid short fiber (60:40) in ethanol, and aramid/aerogel composite was prepared by drying and hot compressing. The composite had a good heat-resisting, however, the mechanical property decreased with the content of aerogel increasing.

Fabrication and characterization of magnetic porous silicon with curie temperature above room temperature

2017 ◽  
Vol 24 (5) ◽  
pp. 1139-1144 ◽  
Author(s):  
Mansour Aouassa ◽  
Imen Jadli ◽  
Mohammad Ali Zrir ◽  
Hassen Maaref ◽  
Ridha Mghaieth ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Curie Temperature ◽  
Room Temperature ◽  
Fabrication And Characterization

Fabrication and characterization of pentacene-based transistors with a room-temperature mobility of 1.25cm2/Vs

2008 ◽  
Vol 9 (4) ◽  
pp. 432-438 ◽  
Author(s):  
Hoon-Seok Seo ◽  
Young-Se Jang ◽  
Ying Zhang ◽  
P. Syed Abthagir ◽  
Jong-Ho Choi
Keyword(s):  
Room Temperature ◽  
Fabrication And Characterization

Fabrication and Characterization of Bonded NdFeB Microstructures for Microelectromechanical Systems Applications

2011 ◽  
Vol 211-212 ◽  
pp. 561-564 ◽  
Author(s):  
Kai Tao ◽  
Gui Fu Ding ◽  
Zhuo Qing Yang ◽  
Yan Wang ◽  
Pei Hong Wang
Keyword(s):  
Room Temperature ◽  
Microelectromechanical Systems ◽  
Steel Substrate ◽  
Metal Mold ◽  
Promising Candidate ◽  
Energy Product ◽  
Micro Patterning ◽  
Fabrication And Characterization ◽  
Bonded Magnet

A micromachining technique has been developed for the fabrication of microscale polymer-bonded magnet. Two types of lithographically defined molds, photoresist mold and electroplated metal mold, were introduced. Photoresist mold is convenient, while electroplated metal mold can be fabricated on the glass or steel substrate which can bear much more compression. NdFeB films of thickness between 50 and 500 µm were prepared by micro-patterning of composites containing 83-95wt% of commercial NdFeB powder after curing at the room temperature. Magnetic properties mainly depend on the types and percentage of volume loading of magnetic powder. Coercivity of 772.4kA/m (9.70kOe), remanence of 275.1mT (2.751kG), and energy product of 22.6kJ/m3 (2.8MGOe) have been achieved. This easily developed magnet could be a promising candidate for applications in magnetic microelectromechanical systems (MEMS).

Fabrication and characterization of n-ZnO nanorods/p-Si (100) heterojunction

2015 ◽  
Vol 24 (04) ◽  
pp. 1550050 ◽  
Author(s):  
Kieu Loan Phan Thi ◽  
Lam Thanh Nguyen ◽  
Anh Tuan Dao ◽  
Nguyen Huu Ke ◽  
Vu Tuan Hung Le
Keyword(s):  
Chemical Method ◽  
Room Temperature ◽  
Zno Nanorods ◽  
Average Height ◽  
X Ray Diffraction ◽  
Wet Chemical Method ◽  
X Ray ◽  
Wet Chemical ◽  
Fabrication And Characterization

In this paper, ZnO nanorods were grown by wet chemical method on p-Si (100) substrate to form n-ZnO nanorods/p-Si (100) heterojunction. The optical, electrical, structural properties of n-ZnO nanorods/p-Si(100) heterojunction were analyzed by the photoluminescence (PL) spectroscopy, [Formula: see text]–[Formula: see text] measurement, X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The room temperature PL spectra reveal the good optical property of the heterojunction with strong UV peak at 385[Formula: see text]nm. The ZnO nanorods were vertically well-aligned on p-Si (100) and had an average height of about 1.6[Formula: see text][Formula: see text]m. The n-ZnO nanorods/p-Si (100) heterojunction also exhibits diode-like-rectifying-behavior.

The design, fabrication and characterization of rare-earth containing multilayer supramolecular films with nanometer-scale controlled composition, structure and properties

2003 ◽  
Vol 532-535 ◽  
pp. 1017-1024 ◽  
Author(s):  
Maria N. Antipina ◽  
Radmir V. Gainutdinov ◽  
Irina V. Golubeva ◽  
Yury A. Koksharov ◽  
Artem P. Malakho ◽  
...  
Keyword(s):  
Rare Earth ◽  
Nanometer Scale ◽  
Structure And Properties ◽  
Fabrication And Characterization ◽  
Composition Structure
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