| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Self-healable and flexible thermoacoustic loudspeakers based on silver nanowire-polyurethane conductive electrodes |
| 초록 |
Thermoacoustic (TA) speakers have shown great interest as a new form of speaker device. The TA speaker can generate sound by applying AC voltages on a conductive network, generating heat by Joule-heating and vibrating the surrounding air. To fabricate efficient TA speaker, a material with low heat capacity is necessary. Among various materials, AgNWs are considered as a promising material for fabricating TA speaker with low heat capacity. Here, we demonstrate a self-healable and flexible TA speakers based on AgNWs-polyurethane conductive electrodes. The speaker can be fabricated by spin-coating of AgNW solution on the self-healable polyurethane-urea flexible substrate for the formation of AgNW conductive networks. The fabricated speaker can generate sound with 60 dB and heal the surface damages at 95°C and 80% humidity condition within 20 minutes. We anticipate that the suggested technique provides a powerful platform for flexible thermoacoustic speakers with self-healing properties. |
| 저자 |
강동희1, 성수진2, 조승세1, 김민수1, 김진철2, 노승만2, 고현협1
|
| 소속 |
1울산과학기술원, 2한국화학(연) |
| 키워드 |
thermoacoustic speaker; self-healable polymer; silver nanowire semitransparent electrodes
|
| E-Mail |
|
