Share Email Print

Proceedings Paper

Piezoelectric nanogenerators based on ZnO and M13 Bacteriophage nanostructures (Conference Presentation)
Author(s): Dong-Myeong Shin; Kyujungg Kim; Suck Won Hong; Jin-Woo Oh; Hyung Kook Kim; Yoon-Hwae Hwang

Paper Abstract

Recently, the portable and wearable electronic devices, operated in the power range of microwatt to miliwatt, become available thank to the nanotechnology development and become an essential element for a comfortable life. Our recent research interest mainly focuses on the fabrication of piezoelectric nanogenerators based on smart nanomaterials such as zinc oxide novel nanostructure, M13 bacteriophage. In this talk, we present a simple strategy for fabricating the freestanding ZnO nanorods/graphene/ZnO nanorods double sided heterostructures. The characterization of the double sided heterostructures by using SEM, and Raman scattering spectroscopy reveals the key process and working mechanism of a formation of the heterostructure. The mechanism is discussed in detail in term of the decomposed seed layer and the vacancy defect of graphene. The approach consists of a facile one-step fabrication process and could achieve ZnO coverage with a higher number density than that of the epitaxial single heterostructure. The resulting improvement in the number density of nanorods has a direct beneficial effect on the double side heterostructured nanogenerator performance. The total output voltage and current density are improved up to~2 times compared to those of a single heterostructure due to the coupling of the piezoelectric effects from both upward and downward grown nanorods. The facile one-step fabrication process suggests that double sided heterostructures would improve the performance of electrical and optoelectrical device, such as touch pad, pressure sensor, biosensor and dye-sensitized solar cells. Further, ioinspired nanogenerators based on vertically aligned phage nanopillars are inceptively demonstrated. Vertically aligned phage nanopillars enable not only a high piezoelectric response but also a tuneable piezoelectricity. Piezoelectricity is also modulated by tuning of the protein's dipoles in each phage. The sufficient electrical power from phage nanopillars thus holds promise for the development of self-powered implantable and wearable electronics.

Paper Details

Date Published: 3 November 2016
PDF: 1 pages
Proc. SPIE 9927, Nanoengineering: Fabrication, Properties, Optics, and Devices XIII, 99270D (3 November 2016); doi: 10.1117/12.2236873
Show Author Affiliations
Dong-Myeong Shin, Pusan National Univ. (Korea, Republic of)
Kyujungg Kim, Pusan National Univ. (Korea, Republic of)
Suck Won Hong, Pusan National Univ. (Korea, Republic of)
Jin-Woo Oh, Pusan National Univ. (Korea, Republic of)
Hyung Kook Kim, Pusan National Univ. (Korea, Republic of)
Yoon-Hwae Hwang, Pusan National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 9927:
Nanoengineering: Fabrication, Properties, Optics, and Devices XIII
Eva M. Campo; Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?