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Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers

Research output: Contribution to journalArticle

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Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers. / Lee, Jonghee; Koh, Tae-Wook; Cho, Hyunsu ; Schwab, Tobias; Lee, Jae-Hyun; Hofmann, Simone; Lee, Jeong-Ik; Yoo, Seunghyup; Leo, Karl; Gather, Malte Christian.

In: Journal of Luminescence, Vol. 162, 06.2015, p. 180-184.

Research output: Contribution to journalArticle

Harvard

Lee, J, Koh, T-W, Cho, H, Schwab, T, Lee, J-H, Hofmann, S, Lee, J-I, Yoo, S, Leo, K & Gather, MC 2015, 'Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers', Journal of Luminescence, vol. 162, pp. 180-184. https://doi.org/10.1016/j.jlumin.2015.02.032

APA

Lee, J., Koh, T-W., Cho, H., Schwab, T., Lee, J-H., Hofmann, S., ... Gather, M. C. (2015). Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers. Journal of Luminescence, 162, 180-184. https://doi.org/10.1016/j.jlumin.2015.02.032

Vancouver

Lee J, Koh T-W, Cho H, Schwab T, Lee J-H, Hofmann S et al. Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers. Journal of Luminescence. 2015 Jun;162:180-184. https://doi.org/10.1016/j.jlumin.2015.02.032

Author

Lee, Jonghee ; Koh, Tae-Wook ; Cho, Hyunsu ; Schwab, Tobias ; Lee, Jae-Hyun ; Hofmann, Simone ; Lee, Jeong-Ik ; Yoo, Seunghyup ; Leo, Karl ; Gather, Malte Christian. / Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers. In: Journal of Luminescence. 2015 ; Vol. 162. pp. 180-184.

Bibtex - Download

@article{4dd0b12fc0354d5ea17d5d81ca1e6961,
title = "Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers",
abstract = "We report a study on transparent organic light-emitting diodes (OLEDs) with different bidirectional emission colors, enabled by color-conversion organic capping layers. Starting from a transparent blue OLED with an uncapped Ag top electrode exhibiting an average transmittance of 33.9{\%}, a 4-(Dicyanomethylene)-2-methyl- 6-(4-dimethylaminostyryl)-4Hpyran (DCM)-doped tris-(8-hydroxy-quinolinato)-aluminium (Alq3) capping layer is applied to achieve color-conversion from blue to orange-red on the top side while maintaining almost unchanged device transmittance. This color-conversion capping layer does not only change the color of the top side emission, but also enhances the overall device efficiency due to the optical interaction of the capping layer with the primary blue transparent OLED. Top white emission from the transparent bi-directional OLED exhibits a correlated color temperature around 6,000K-7,000K, with excellent color stability as evidenced by an extremely small variation in color coordinate of ∆(x,y) = (0.002, 0.002) in the forward luminance range of 100-1000 cd m-2. At the same time, the blue emission color of bottom side is not influenced by the color conversion capping layer, which finally results in different emission colors of the two opposite sides of our transparent OLEDs",
keywords = "Down-conversion white OLED, Color conversion capping layer, Transparent OLED, Bi-directional OLED",
author = "Jonghee Lee and Tae-Wook Koh and Hyunsu Cho and Tobias Schwab and Jae-Hyun Lee and Simone Hofmann and Jeong-Ik Lee and Seunghyup Yoo and Karl Leo and Gather, {Malte Christian}",
year = "2015",
month = "6",
doi = "10.1016/j.jlumin.2015.02.032",
language = "English",
volume = "162",
pages = "180--184",
journal = "Journal of Luminescence",
issn = "0022-2313",
publisher = "Elsevier Science BV",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers

AU - Lee, Jonghee

AU - Koh, Tae-Wook

AU - Cho, Hyunsu

AU - Schwab, Tobias

AU - Lee, Jae-Hyun

AU - Hofmann, Simone

AU - Lee, Jeong-Ik

AU - Yoo, Seunghyup

AU - Leo, Karl

AU - Gather, Malte Christian

PY - 2015/6

Y1 - 2015/6

N2 - We report a study on transparent organic light-emitting diodes (OLEDs) with different bidirectional emission colors, enabled by color-conversion organic capping layers. Starting from a transparent blue OLED with an uncapped Ag top electrode exhibiting an average transmittance of 33.9%, a 4-(Dicyanomethylene)-2-methyl- 6-(4-dimethylaminostyryl)-4Hpyran (DCM)-doped tris-(8-hydroxy-quinolinato)-aluminium (Alq3) capping layer is applied to achieve color-conversion from blue to orange-red on the top side while maintaining almost unchanged device transmittance. This color-conversion capping layer does not only change the color of the top side emission, but also enhances the overall device efficiency due to the optical interaction of the capping layer with the primary blue transparent OLED. Top white emission from the transparent bi-directional OLED exhibits a correlated color temperature around 6,000K-7,000K, with excellent color stability as evidenced by an extremely small variation in color coordinate of ∆(x,y) = (0.002, 0.002) in the forward luminance range of 100-1000 cd m-2. At the same time, the blue emission color of bottom side is not influenced by the color conversion capping layer, which finally results in different emission colors of the two opposite sides of our transparent OLEDs

AB - We report a study on transparent organic light-emitting diodes (OLEDs) with different bidirectional emission colors, enabled by color-conversion organic capping layers. Starting from a transparent blue OLED with an uncapped Ag top electrode exhibiting an average transmittance of 33.9%, a 4-(Dicyanomethylene)-2-methyl- 6-(4-dimethylaminostyryl)-4Hpyran (DCM)-doped tris-(8-hydroxy-quinolinato)-aluminium (Alq3) capping layer is applied to achieve color-conversion from blue to orange-red on the top side while maintaining almost unchanged device transmittance. This color-conversion capping layer does not only change the color of the top side emission, but also enhances the overall device efficiency due to the optical interaction of the capping layer with the primary blue transparent OLED. Top white emission from the transparent bi-directional OLED exhibits a correlated color temperature around 6,000K-7,000K, with excellent color stability as evidenced by an extremely small variation in color coordinate of ∆(x,y) = (0.002, 0.002) in the forward luminance range of 100-1000 cd m-2. At the same time, the blue emission color of bottom side is not influenced by the color conversion capping layer, which finally results in different emission colors of the two opposite sides of our transparent OLEDs

KW - Down-conversion white OLED

KW - Color conversion capping layer

KW - Transparent OLED

KW - Bi-directional OLED

U2 - 10.1016/j.jlumin.2015.02.032

DO - 10.1016/j.jlumin.2015.02.032

M3 - Article

VL - 162

SP - 180

EP - 184

JO - Journal of Luminescence

JF - Journal of Luminescence

SN - 0022-2313

ER -

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