| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Improvement of the thermoelectric performance of directly spun CNT webs by individual control of electrical and thermal conductivity |
| 초록 |
We suggest the fabrication of foldable thermoelectric (TE) materials by embedding conducting polymers into Au-doped CNT webs. The CNT bundles which are interconnected by a direct spinning method to form 3D networks without interfacial contact resistance, provide both high electrical conductivity and high carrier mobility. The ZT value of spun CNT web is significantly enhanced through two simple processes. Decorating the porous CNT webs with Au nanoparticles increases the electrical conductivity, resulting in an optimal ZT of 0.163, which represents a more than twofold improvement compared to the ZT of pristine CNT webs (0.079). After decoration, polyaniline (PANI) is integrated into the Au-doped CNT webs both to improve the Seebeck coefficient by an energy-filtering effect, and to decrease the thermal conductivity by the phonon scattering effect. This leads to a ZT of 0.203, which is one of the highest ZT values reported for organic TE materials. |
| 저자 |
안승건1, 강영훈1, 이아영2, 장광석1, 정영진2, 조성윤1
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| 소속 |
1한국화학(연), 2숭실대 |
| 키워드 |
CNT web; gold dopant; conducting polymers; thermoelectrics.
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| E-Mail |
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