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24 April 2020 Piezoelectric behaviors of cellulose nanofiber characterized by using PFM (Conference Presentation)
Lindong Zhai, Hyun Chan Kim, Dickens O. Agumba, Jaehwan Kim
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Proceedings Volume 11378, Nano-, Bio-, Info-Tech Sensors, and 3D Systems IV; 113780U (2020) https://doi.org/10.1117/12.2558354
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only
Abstract
This study presents the piezoelectric property test of ultrathin cellulose nanofiber (CNF) film and calculate the piezoelectric coefficient by using piezoresponse force microscopy (PFM). Cellulose is known to have piezoelectric properties. However, its measurement is not easy. The mechanism of PFM is based on detecting the piezoresponse induced by the inverse piezoelectric effect from target sample. We applied the PFM to characterize the piezoelectric properties of ultrathin CNF film which is fabricated by microfabrication method under clean room condition. For characterizing the piezoelectric properties of ultrathin CNF film, the PFM standard sample periodically poled lithium niobite (PPLN) sample was utilized as reference sample. By applying AC voltages through conductive AFM probe to ultrathin CNF film surface, the amplitude data of ultrathin CNF film is recorded and used to calculate the piezoelectric coefficient. Corona poling, electrical in-plane alignment and high magnetic field alignment methods are introduced to align the ultrathin CNF film. According to the different alignment methods, the aligned ultrathin CNF films show different piezoelectric behavior.
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Lindong Zhai, Hyun Chan Kim, Dickens O. Agumba, and Jaehwan Kim "Piezoelectric behaviors of cellulose nanofiber characterized by using PFM (Conference Presentation)", Proc. SPIE 11378, Nano-, Bio-, Info-Tech Sensors, and 3D Systems IV, 113780U (24 April 2020); https://doi.org/10.1117/12.2558354
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KEYWORDS
Nanofibers
Atomic force microscopy
Lithium
Magnetism
Microfabrication
Microscopy
Piezoelectric effects
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