A stretchable thermoacoustic sounder based on vertical graphene
Abstract
Thermoacoustic effect sounders have great potential in achieving the vibration-free sound generation of conductive films. However, the fabrication of stretchable conductive films with high stability remains a challenge. In this paper, a stretchable thermoacoustic sounder has been developed using a conductive vertical graphene (VGr) film. At 100% maximum tensile strain, the resistance of the VGr film only increased by 23%. The thermoacoustic sounder can produce sound in the frequency range of 1–22 kHz and can stably output sound waves under 50% tensile strain with the sound pressure level of greater than 60 dB. The work paves a way in fabricating wearable thin-film sounders.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (10)
Kangxin Shen
State Key Laboratory of Luminescent Materials and Devices, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology 1 , Guangzhou 510640,
Caihao Deng
Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering
Baozhong Chen
State Key Laboratory of Luminescent Materials and Devices, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology 1 , Guangzhou 510640,
Simeng Gong
Guangdong Juhua Printing and Display Technology Company 2 , Guangzhou 510663,
Minghui Li
Jintao Xu
School of Physics, Central South University 1 , Changsha 410083,
Bo Huang
Huimin Su
Qi Zhou
Chongqing University Cancer Hospital Chongqing China
Linfeng Lan
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry