| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 | 21권 2호, p.2148 |
| 발표분야 | 재료 |
| 제목 | Heat sink based on layer-by-layer assembled carbon nanotube /graphene composite |
| 초록 | High density integration of electronic devices in the electronic systems is indispensable .This trend has led to high power consumption of devices and limited the performance of electronic devices. Most important property which determines the performance of heat sink is thermal conductivity. Inspired by the outstanding thermal conductivity of carbon based nanomaterials including carbon nanotubes (CNTs) and graphene, we report novel heat sink prepared by layer-by-layer (LBL) deposition of CNTs and graphene. Our strategy began with functionalization of CNTs and graphene for subsequent LBL process. Functionalized graphene with negative charge was sequentially built up on the Cu heat sink in alternation with positively charged CNT via electrostatic interactions. To compare the heat dissipation effect with commercialized Cu heat sink, the CNT/graphene composite based heat sink and Cu heat sink were attached to thermal heat source. Temperature of opposite side was recorded with time. Difference of temperature between CNT/graphene coated heat sink and bare heat sink was 21℃, indicating the CNT/graphene composite heat sink remarkably outperformed the commercialized Cu heat sink. |
| 저자 | 정수환, 이예인, 박민영, 채지혜, 황선주, 하현철, 김윤영 |
| 소속 | 경북대 |
| 키워드 | graphene; carbon nanotube; heat sink; layer-by-layer method |
| 원문파일 | 초록 보기 |
