Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Optimization of the Emission Spectrum of Red Color in Quantum Dot-Organic Light Emitting Diodes

  • Jeong, Byoung-Seong (Graduate School of Advanced Integration of Science and Technology, Department of Hydrogen and Renewable Energy, Kyungpook National University)
  • Received : 2020.12.10
  • Accepted : 2021.02.05
  • Published : 2021.04.10
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Abstract

We investigated the optimal stacked structure from the perspective of process architecture (PA) through emission spectrum analysis according to the wavelength of quantum dot (QD)-organic light-emitting diodes (OLED). We confirmed that the blue-light leakage through the QD can be minimized by increasing the QD filling density above a critical value in the red QD (R-QD) layer. In addition, when the thickness of red-color filter (R-CF) at the upper part of the R-QD increased to more than 3 ㎛, the leakage of blue light through the R-CF was effectively blocked, and a very sharp emission spectrum in the red wavelength band could be obtained. According to these outstanding results, we expect that the development of QD-OLED displays with very excellent color gamut can be possibly realized.

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References

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