Enhanced piezoelectric properties of vertically aligned single-crystalline NKN nano-rod arrays

Min Gyu Kang, Seung Min Oh, Woo Suk Jung, Hi Gyu Moon, Seung Hyub Baek, Sahn Nahm, Seok Jin Yoon, Chong-Yun Kang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Piezoelectric materials capable of converting between mechanical and electrical energy have a great range of potential applications in micro- and nano-scale smart devices; however, their performance tends to be greatly degraded when reduced to a thin film due to the large clamping force by the substrate and surrounding materials. Herein, we report an effective method for synthesizing isolated piezoelectric nano-materials as means to relax the clamping force and recover original piezoelectric properties of the materials. Using this, environmentally friendly single-crystalline Na x K 1-x NbO 3 (NKN) piezoelectric nano-rod arrays were successfully synthesized by conventional pulsed-laser deposition and demonstrated to have a remarkably enhanced piezoelectric performance. The shape of the nano-structure was also found to be easily manipulated by varying the energy conditions of the physical vapor. We anticipate that this work will provide a way to produce piezoelectric micro- and nano-devices suitable for practical application, and in doing so, open a new path for the development of complex metal-oxide nano-structures.

Original languageEnglish
Article number10151
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 2015 May 8

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rods
electric power
pulsed laser deposition
metal oxides
vapors
energy
thin films

ASJC Scopus subject areas

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Enhanced piezoelectric properties of vertically aligned single-crystalline NKN nano-rod arrays. / Kang, Min Gyu; Oh, Seung Min; Jung, Woo Suk; Gyu Moon, Hi; Baek, Seung Hyub; Nahm, Sahn; Yoon, Seok Jin; Kang, Chong-Yun.

In: Scientific Reports, Vol. 5, 10151, 08.05.2015.

Research output: Contribution to journalArticle

Kang, Min Gyu ; Oh, Seung Min ; Jung, Woo Suk ; Gyu Moon, Hi ; Baek, Seung Hyub ; Nahm, Sahn ; Yoon, Seok Jin ; Kang, Chong-Yun. / Enhanced piezoelectric properties of vertically aligned single-crystalline NKN nano-rod arrays. In: Scientific Reports. 2015 ; Vol. 5.
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