한국정보디스플레이학회:학술대회논문집
- 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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- Pages.1220-1223
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- 2009
The Effect of Silver Nano-Particles on Surface Plasmon-enhanced OLEDs
- Yeo, Ye-Won (Department of Electrical Engineering, KAIST) ;
- Yang, Ki-Youl (Department of Electrical Engineering, KAIST) ;
- Choi, Kyung-Cheol (Department of Electrical Engineering, KAIST)
- 발행 : 2009.10.12
초록
The effect of silver (Ag) nano-particles on OLEDs was investigated by using a finite difference time domain (FDTD) tool. The proposed OLEDs employed Ag nanoparticles thermally deposited in a high vacuum on a cathode. The emission rate of the exciton was improved by 1.8 fold compared to the conventional OLEDs without Ag nano-particles. Less spacing between the dipole source and the Ag nano-particles resulted in a larger emission rate of the exciton in the OLED with nano-particles. The size of the Ag nano-particles was proportional to the emission rate of the exciton in a range of nano-meter scale of nano-particles. The enhancement of the emission rate of the exciton due to Ag nano-particles caused the improvement in the efficiency of the proposed OLED.