@inproceedings{500ad80da6174062a6d38437767e373f,
title = "Piezoelectric paper speaker using a regenerated cellulose film",
abstract = "Acoustic performance of regenerated cellulose electroactive paper (EAPap) as a thin flexible film speaker was investigated. The enhancement of piezoelectric properties was obtained by a simple mechanical stretching process. As a prototype of flexible paper speaker, the sound pressure level (SPL) of cellulose EAPap film was evaluated as a function of distance, speaker size and geometry. It was revealed that the higher acoustic output from a small rectangular shape in low frequency range, while circular one seems to be better than that of all rectangular type speakers in audible frequencies.",
keywords = "Acoustic device, Cellulose, Film speaker, Flexibility, Piezoelectricity, Sound pressure level (SPL)",
author = "Kim, {Joo Hyung} and Yun, {Gyu Young} and Kim, {Jung Hwan} and Jaehwan Kim",
year = "2009",
doi = "10.1117/12.840169",
language = "English",
isbn = "9780819478047",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "2nd International Conference on Smart Materials and Nanotechnology in Engineering",
note = "2nd International Conference on Smart Materials and Nanotechnology in Engineering ; Conference date: 08-07-2009 Through 11-07-2009",
}