Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3666224
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Funding
- National Natural Science Foundation of China [61025021, 60936002, 51072089, 61011130296, 61020106006]
- National Key Project of Science and Technology [2009ZX02023-001-3, 2011ZX02403-002]
- Ministry of Science and Technology of China [2008DFA12000]
- Foundation of State Key Laboratory of Electronic Thin Films and Integrated Devices of University of Electronic Science and Technology [KFJJ200904]
- Open Foundation of State Key Laboratory of Bioelectronics of Southeast University
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An organic, ultrathin, and transparent sound-emitting device was fabricated using poly(3,4-ethylenedioxythiophene): poly(styrenesulfonic) (PEDOT:PSS) films. This sound-emitting device was easily processed by spin coating. Sound emission from PEDOT: PSS was measured as a function of power, distance, and frequency. The sound frequency spectrum was found to be ultra-flat in a wide sound frequency range (10-45 kHz). Theoretical analysis showed that the working principle was the thermoacoustic effect. The PEDOT: PSS sound-emitting device has potential applications in the acoustic field. In particular, it can be integrated with a liquid crystal display to realize sound emission and image display at the same time. (C) 2011 American Institute of Physics. [doi:10.1063/1.3666224]
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