적색과 청색 형광 물질을 사용한 백색 적층 OLED

DOI QR코드

DOI QR Code

박찬석;공도훈;강주현;윤성혁;주성후
Park, Chan-Suk;Kong, Do-Hun;Kang, Ju-Hyun;Yun, Sung-Hyuk;Ju, Sung-Hoo

  • 투고 : 2015.06.01
  • 심사 : 2015.06.20
  • 발행 : 2015.06.30

초록

We studied white tandem organic light-emitting diodes using red and blue fluorescent materials. White 2 units tandem OLEDs were fabricated using $Alq_3$:Rubrene (3 vol.% 5 nm) and SH-1 : BD-2 (3 vol.% 25 nm) as emitting layer (EML). The device with $Alq_3$ : Rubrene (3 vol.% 5 nm) / SH-1 : BD-2 (3 vol.% 25 nm) showed yellowish white emission with a Commission Internationale de l'Eclairage (CIE) coordinates of (0.442, 0.473) at $1,000cd/m^2$, and variation of CIE coordinates was low with ($0.44{\pm}0.002$, $0.472{\pm}0.001$) from 500 to $3,000cd/m^2$. White 3 units tandem OLEDs were fabricated by additory stacking the blue or white layer as EML. CIE coordinates of 3 units tandem OLEDs with stacked blue and white layer was low variation of ($0.293{\pm}0.008$, $0.36{\pm}0.005$) and ($0.412{\pm}0.002$, $0.423{\pm}0.001$) from 500 to $3,000cd/m^2$, respectively. Our findings suggest that stacked OLED was possible to controlling CIE coordinates and producing excellent color stability.

키워드

OLED;Tandem;White;Color stability

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피인용 문헌

  1. 1. Optical and Electrical Properties of Two-Wavelength White Tandem Organic Light-Emitting Diodes Using Red and Blue Materials vol.28, pp.9, 2015, doi:10.5695/JKISE.2015.48.3.115
  2. 2. Emission Characteristics of White Organic Light-Emitting Diodes Using Blue Fluorescent and Red Phosphorescent Materials vol.28, pp.11, 2015, doi:10.5695/JKISE.2015.48.3.115
  3. 3. Emission Characteristics of White Tandem Organic Light Emitting Diodes Using Blue and Red Phosphorescent Materials vol.49, pp.2, 2016, doi:10.5695/JKISE.2015.48.3.115
  4. 4. Emission Characteristics of Dual-Side Emission OLED with Al Cathode Thickness Variation vol.48, pp.4, 2015, doi:10.5695/JKISE.2015.48.3.115