Research Papers

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

[+] Author and Article Information
Suyitno Suyitno

Department of Mechanical Engineering,
Sebelas Maret University,
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mails: suyitno@uns.ac.id;

Agus Purwanto

Department of Chemical Engineering,
Sebelas Maret University,
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mail: aguspur@yahoo.com

R. Lullus Lambang G. Hidayat

Department of Mechanical Engineering,
Sebelas Maret University,
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mail: lulus_l@yahoo.com

Imam Sholahudin

Postgraduate Program in Mechanical Engineering,
Sebelas Maret University,
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mail: slatem25@gmail.com

Mirza Yusuf

Postgraduate Program in Mechanical Engineering,
Sebelas Maret University,
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mail: langkahsiguci@gmail.com

Sholiehul Huda

Department of Mechanical Engineering,
Sebelas Maret University
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mail: sholiehulhuda@gmail.com

Zainal Arifin

Department of Mechanical Engineering,
Sebelas Maret University,
Jl. Ir. Sutami 36 A, Surakarta 57126, Indonesia
e-mails: zainal_a@uns.ac.id; zainal_mp@yahoo.co.id

Manuscript received September 24, 2013; final manuscript received April 12, 2014; published online May 2, 2014. Assoc. Editor: Roger Narayan.

J. Nanotechnol. Eng. Med 5(1), 011002 (May 02, 2014) (6 pages) Paper No: NANO-13-1068; doi: 10.1115/1.4027447 History: Received September 24, 2013; Revised April 12, 2014

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.

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Fig. 1

A nanofiber-based NG

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Fig. 2

Equipment for measuring the performance of undoped ZnO-based and doped ZnO-based NGs

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Fig. 7

SEM image of fibers after being subjected to a load of (a) 0.5 kg for 12,000 cycles and (b) 1.5 kg for 12,000 cycles

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Fig. 3

SEM images of undoped ZnO and doped ZnO nanofibers

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Fig. 6

Average output power from (a) undoped ZnO-based NGs and (b) doped ZnO-based NGs

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Fig. 5

Output voltage of (a) undoped ZnO-based and (b) doped ZnO-based NGs obtained by gradually changing the amount of external resistance

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Fig. 4

XRD patterns for (a) doped ZnO and (b) undoped ZnO nanofibers




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