학술논문
Acoustic Performance Enhancement in PVDF Speakers by Using Buckled Nanospring Carbon Nanotubes
Document Type
Article
Author
Source
센서학회지 / JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY. Nov 30, 2019 28(6):360
Subject
Language
Korean
ISSN
1225-5475
Abstract
A polyvinylidene fluoride (PVDF)-based film speaker is successfully fabricated with enhanced bass sound by incorporating buckled nanospring carbon nanotubes (NS-CNTs) as fillers. Various concentrations up to 1-7 wt% of uniformly dispersed buckled NS-CNTs are loaded to increase the beta (β)-phase fraction, crystallinity, and dielectric constant of the speaker, and this results in the bass part enhancement of about 19 dB full scale (dBFS) at 7 wt% filler loading of the piezoelectric film speaker.