Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Display using the CdSe/ZnS Quantum Dot

CdSe/ZnS 양자점을 이용한 디스플레이

  • Cho, Su-Young (Dept. of Mechatronics, Chosun College of Science and Technology) ;
  • Song, Jin-Won (Research Institute, ECOFLUX Co., Ltd.)
  • Received : 2014.07.10
  • Accepted : 2014.07.30
  • Published : 2014.08.25
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Abstract

While the development of a portable plate panel display, thinning, high color reproduction, high brightness studies have been actively performed. LED, OLED is used as a light source. The research on quantum dot is much accomplished by the material of light source. Such quantum dot is the next generation semiconductor nano fluorescent substance because quantum dot has the high color reproduction and flexible display characteristic. In this study, we presented to method of using the quantum dot for implementation of the plate panel display. Quantum Dot (CdSe/ZnS), having a 100um thickness, is spread in PET barrier film. A Blue LED having a wavelength of 455nm as a light source irradiating light to the optical characteristic of the devices produced and evaluated. Also we presented the possibility for application with the color change film of the LCD.

평판 디스플레이(plate panel display)가 휴대용으로 발전하면서 박막화, 고색재현성, 고휘도에 관한 연구가 활발히 이루어지고 있으며, 광원으로써 LED, OLED가 주로 이용되고 있다. 이러한 광원의 소재로 양자점에 관한 연구가 많이 이루어 지고 있는데, 양자점은 고색재현성과 유연디스플레이 구현에 있어서 주목받는 차세대 반도체 나노형광체 이다. 본 연구에서는 평판 디스플레이를 구현함에 있어서 양자점을 이용하는 방법에 관하여 제시하였다. CdSe/ZnS 양자점을 PET베리어 필름에 $100{\mu}m$ 두께로 도포하고 455nm의 파장을 갖는 청색 LED를 광원으로하여 빛을 조사하는 디바이스를 제작하고 광특성을 평가하였으며, LCD의 색변환 필름으로써 양자점의 적용 가능성을 제시하였다.

Keywords

References

  1. Y. Li, A. Rizzo, R. Cingolani, and G. Gigli, "Bright White-Light-Emitting Device from Ternary Nanocrystal Composites," Adv. Mater., vol.18, no.19, pp.2545-2548, 2006. https://doi.org/10.1002/adma.200600181
  2. J. Lim, S. Jun, E. Jang, H. Baik, H. Kim, and J. Cho, "Preparation of Highly Luminescent Nanocrystals and Their Application to Light-Emitting Diodes," Adv. Mater., vol.19, no.15, pp.1927-1932, 2007. https://doi.org/10.1002/adma.200602642
  3. W. K. Bae, J. Kwak, J. W. Park, K. Char, C. Lee, and S. Lee, "Highly Efficient Green-Light-Emitting Diodes Based on CdSe@ZnS Quantum Dots with a Chemical-Composition Gradient," Adv. Mater., vol.21, no.17, pp.1690-1694, 2009. https://doi.org/10.1002/adma.200801908
  4. J.W. Kim, J. E. Oh,S. C. Hong, "Studies on long-wavelength infrared detector using multiple stacked InAs Quantum dot Layers, 대한전자공학회논문지, 제37권, SD편, 제8호, pp. 42-47, 2000
  5. P. O. Anikeeva, J. E. Halpert, M. G. Bawendi, and V. Bulovic, "Quantum Dot Light-Emitting Devices with Electroluminescence Tunable over the Entire Visible Spectrum," Nano Lett., vol.9, no.7, pp.2532-2536, 2009. https://doi.org/10.1021/nl9002969
  6. E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, "White-Light-Emitting Diodes with Quantum Dot Color Converters for Display Backlights," Adv. Mater., vol.22, no.28, pp.3076-3080, 2010. https://doi.org/10.1002/adma.201000525
  7. K. Kim, J. Y. Woo, S. Jeong, and C.S. Han, "Photoenhancement of a Quantum Dot Nanocomposite via UV Annealing and Its Application to White LEDs," Adv. Mater., vol.23, no.7, pp.911-914, 2011. https://doi.org/10.1002/adma.201002979
  8. J. Y. Woo, J. Lee, H. Lee, N. Lee, J. H. Oh, Y. R. Do, and C. S. Han, "Visible cathodoluminescence of quantum dot films by direct irradiation of electron beam and its materialization as a field emission device", OPTICS EXPRESS, vol. 21, no. 10, pp.12519-12516, 2013 https://doi.org/10.1364/OE.21.012519