| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Multifunctional Graphene Nanosheets-Embedded Silicone Encapsulant of Light-Emitting Diode for Superior Performance |
| 초록 |
Graphene nanosheets with uniform size and shape are successfully incorporated into a silicone encapsulant of a light-emitting diode (LED) through a solvent-exchange approach which is a facile and reliable method. The graphene nanosheets embedded in the silicone encapsulant play a multifunctional role which improves the performance of LEDs. The presence of graphene gives rise to effective heat dissipation, improvement of barrier properties against moisture and hydrogen sulfide gas, and enhancement of mechanical properties such as elastic modulus and fracture toughness. Consequently, the LEDs composed of a graphene-embedded silicone encapsulant exhibit long-term stability without loss of luminous efficiency by adding a small amount of graphene. This novel strategy offers a feasible candidate for their practical or industrial applications. |
| 저자 |
이승애, 장정식
|
| 소속 |
서울대 |
| 키워드 |
Light-emitting diode; Encapsulant; Graphene; Silicone resin; Long-term stability
|
| E-Mail |
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