Fabrication and Characterization of Zinc Oxide-Based Electrospun Nanofibers for Mechanical Energy Harvesting

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Suyitno Suyitno ◽  
Agus Purwanto ◽  
R. Lullus Lambang G. Hidayat ◽  
Imam Sholahudin ◽  
Mirza Yusuf ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Fiber Diameter ◽  
Mechanical Energy ◽  
Electrospun Nanofibers ◽  
Solution Flow Rate ◽  
Maximum Power Density ◽  
Solution Flow ◽  
Flow Rates ◽  
Fabrication And Characterization

Doped and undoped zinc oxide fibers were fabricated by electrospinning at various solution flow rates of 2, 4, and 6 μl/min followed by sintering at 550 °C. The nanogenerators (NGs) fabricated from the fibers were examined for their performance by applying loads (0.25–1.5 kg) representing fingers taps on the keyboard. A higher solution flow rate resulted in a larger fiber diameter, thus reducing nanogenerator voltage. The maximum power density for undoped zinc oxide-based and doped zinc oxide-based nanogenerators was 17.6 and 51.7 nW/cm2, respectively, under a load of 1.25 kg. Enhancing nanogenerator stability is a topic that should be investigated further.

Fabrication and characterization of electrospun nanofibers of high DP natural cotton lines cellulose

2011 ◽  
Vol 12 (3) ◽  
pp. 345-351 ◽  
Author(s):  
Chaorong Li ◽  
Rui Chen ◽  
Xiaoqiang Zhang ◽  
Jie Xiong ◽  
Yingying Zheng ◽  
...  
Keyword(s):  
Electrospun Nanofibers ◽  
Fabrication And Characterization

scholarly journals Fabrication and characterization of In-doped zinc oxide nanoarrays

2009 ◽  
Vol 58 (4) ◽  
pp. 2702
Author(s):  
Li Hui-Feng ◽  
Gao Xiang-Xi ◽  
Huang Yun-Hua ◽  
Wang Jian ◽  
Zhang Yue ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Fabrication And Characterization

The Fabrication and Characterization of Well Aligned Petal-Like Arsenic-Doped Zinc Oxide Microrods

2011 ◽  
Vol 28 (10) ◽  
pp. 108103 ◽  
Author(s):  
Qiu-Ju Feng ◽  
Jun-Yan Jiang ◽  
Peng-Cheng Tao ◽  
Shuang Liu ◽  
Rui-Zhuo Xu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Fabrication And Characterization

Fabrication and characterization of piezoelectric nanogenerator based on Al/ZnO/Au structure

2017 ◽  
Vol 34 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Mubeen Zafar ◽  
Muhammad Naeem Awais ◽  
Muhammad Asif ◽  
Amir Razaq ◽  
Gul Amin
Keyword(s):  
Mechanical Energy ◽  
Short Circuit ◽  
Research Work ◽  
Cost Effective ◽  
Open Circuit ◽  
Thin Layers ◽  
Full Potential ◽  
Content Type ◽  
Fabrication And Characterization

Purpose The purpose of this research work is to harvest energy using the piezoelectric properties of ZnO nanowires (NW). Fabrication and characterization of the piezoelectric nanogenerator (NG), based on Al/ZnO/Au structure without using hosting layer, were done to harvest energy. The proposed method has full potential to harvest the cost-effective energy. Design/methodology/approach ZnO NW were fabricated between the thin layers of Al- and Au-coated substrates for the development of piezoelectric NG. To grow ZnO NW, ZnO seed layer was prepared on the Al-coated substrate, and then ZnO NW were grown by aqueous chemical growth method. Finally, Au top electrode was used to conclude the Al/ZnO/Au NG structure. The Al and Au electrodes were used to establish the ohmic and Schottky contacts with ZnO NW, respectively. Findings Surface morphology of the fabricated device was done by using scanning electron microscopy, and electrical characterization of the sample was performed with digital oscilloscope, picoammeter and voltmeter. The energy harvesting experiment was performed to excite the presented device. The fabricated piezoelectric-sensitive device revealed the maximum open circuit voltage up to 5 V and maximum short circuit current up to 30 nA, with a maximum power of 150 nW. Consequently, it was also shown that the output of the fabricated device was increased by applying the stress. The presented work will help for the openings to capture the mechanical energy from the surroundings to power up the nano/micro-devices. This research work shows that NGs have the competency to build the self-powered nanosystems. It has potential applications in biosensing and personal electronics. Originality/value The fabrication of simple and cost-effective piezoelectric NG is done with a structure of Al/ZnO/Au without using hosting layer. The presented method elucidates an efficient and cost-effective approach to harvest the mechanical energy from the native environment.

scholarly journals Morphology andIn VitroBehavior of Electrospun Fibrous Poly(D,L-lactic acid) for Biomedical Applications

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Toshihiro Inami ◽  
Yasuhiro Tanimoto ◽  
Masayuki Ueda ◽  
Yo Shibata ◽  
Satoshi Hirayama ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Biomedical Applications ◽  
Polymer Concentration ◽  
The Body ◽  
Solution Flow Rate ◽  
Apatite Formation ◽  
X Ray Diffraction ◽  
Solution Flow

This work describes the fabrication, optimization, and characterization of electrospun fibrous poly(D,L-lactic acid) (PDLLA) for biomedical applications. The influences of the polymer concentration of the electrospinning solution (5, 10, or 15 wt%) and the solution flow rate (0.1, 0.5, 1.0, or 2.0 mL/h) on the morphology of the obtained fibrous PDLLA were evaluated. Thein vitrobiocompatibility of two types of PDLLA, ester terminated PDLLA (PDLLA-R) and carboxyl terminated PDLLA (PDLLA-COOH), was evaluated by monitoring apatite formation on samples immersed in Hanks’ balanced salt (HBS) solution. 15 wt% polymer solution was the most beneficial for preparing a fibrous PDLLA structure. Meanwhile, no differences in morphology were observed for PDLLA prepared at various flow rates. Apatite precipitate is formed on both types of PDLLA only 1 day after immersion in HBS solution. After 7 days of immersion, PDLLA-COOH showed greater apatite formation ability compared with that of PDLLA-R, as measured by thin-film X-ray diffraction. The results indicated that the carboxyl group is effective for apatite precipitation in the body environment.

Fabrication and characterization of zinc oxide based rib waveguide

2007 ◽  
Author(s):  
M. Gioffrè ◽  
M. Gagliardi ◽  
M. Casalino ◽  
G. Coppola ◽  
M. Iodice ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Rib Waveguide ◽  
Fabrication And Characterization
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