Novel scattering and color converting substrates for simple-structured white organic light-emitting diodes

Li-Yin Chen; Kun Min Hsieh; Yi Ju Wu; Chung-An Hsieh; Jin Kai Chang; De-Hui Liu; Hsiao-Wen Hung; Shu Yi Ho; Chih Hao Chang

doi:10.1016/j.orgel.2020.106045

Novel scattering and color converting substrates for simple-structured white organic light-emitting diodes

Li-Yin Chen^*, Kun Min Hsieh, Yi Ju Wu, Chung-An Hsieh, Jin Kai Chang, De-Hui Liu, Hsiao-Wen Hung, Shu Yi Ho, Chih Hao Chang

^*Corresponding author for this work

Department of Photonics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Organic light-emitting diodes (OLEDs) have shown great success in the display applications recently. However, the applications of OLEDs in lighting are still limited due to their complex device structures. Here, we developed a novel phosphor doped glass substrate with both high scattering and excellent color conversion capability to greatly simplify the device structures of white organic light-emitting diodes (WOLEDs). A simple-structured WOLED comprising a blue OLED and the scattering fluorescent substrate was demonstrated to realize high quality white light for lighting applications. The WOLED exhibits a turn-on voltage of 2.7 V, a maximum power efficiency of 29.8 lm/W, an external quantum efficiency (EQE) of 14.2%, a color rendering index (CRI) of 86, and a correlated color-temperature (CCT) of 3900 K. The low turn-on voltage can be attributed to the single emissive layer structure used in the WOLED. The high power efficiency as well as the high EQE are due to both the high color conversion efficiency and the high scattering capability of the fluorescent substrate. In addition, the WOLED is favorable for high-quality solid-state lighting in our daily life due to its high color rendering ability along with an adequate CCT CC.

Original language	English
Article number	106045
Pages (from-to)	1-7
Number of pages	7
Journal	Organic Electronics
Volume	89
DOIs	https://doi.org/10.1016/j.orgel.2020.106045
State	Published - Feb 2021

Keywords

Organic light-emitting diodes
Color conversion
Out-coupling
Scattering
Lighting

Access to Document

10.1016/j.orgel.2020.106045

Cite this

@article{db07c9f128c043d283c98adc6a6e061b,

title = "Novel scattering and color converting substrates for simple-structured white organic light-emitting diodes",

abstract = "Organic light-emitting diodes (OLEDs) have shown great success in the display applications recently. However, the applications of OLEDs in lighting are still limited due to their complex device structures. Here, we developed a novel phosphor doped glass substrate with both high scattering and excellent color conversion capability to greatly simplify the device structures of white organic light-emitting diodes (WOLEDs). A simple-structured WOLED comprising a blue OLED and the scattering fluorescent substrate was demonstrated to realize high quality white light for lighting applications. The WOLED exhibits a turn-on voltage of 2.7 V, a maximum power efficiency of 29.8 lm/W, an external quantum efficiency (EQE) of 14.2%, a color rendering index (CRI) of 86, and a correlated color-temperature (CCT) of 3900 K. The low turn-on voltage can be attributed to the single emissive layer structure used in the WOLED. The high power efficiency as well as the high EQE are due to both the high color conversion efficiency and the high scattering capability of the fluorescent substrate. In addition, the WOLED is favorable for high-quality solid-state lighting in our daily life due to its high color rendering ability along with an adequate CCT CC.",

keywords = "Organic light-emitting diodes, Color conversion, Out-coupling, Scattering, Lighting",

author = "Li-Yin Chen and Hsieh, {Kun Min} and Wu, {Yi Ju} and Chung-An Hsieh and Chang, {Jin Kai} and De-Hui Liu and Hsiao-Wen Hung and Ho, {Shu Yi} and Chang, {Chih Hao}",

year = "2021",

month = feb,

doi = "10.1016/j.orgel.2020.106045",

language = "English",

volume = "89",

pages = "1--7",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Novel scattering and color converting substrates for simple-structured white organic light-emitting diodes

AU - Chen, Li-Yin

AU - Hsieh, Kun Min

AU - Wu, Yi Ju

AU - Hsieh, Chung-An

AU - Chang, Jin Kai

AU - Liu, De-Hui

AU - Hung, Hsiao-Wen

AU - Ho, Shu Yi

AU - Chang, Chih Hao

PY - 2021/2

Y1 - 2021/2

N2 - Organic light-emitting diodes (OLEDs) have shown great success in the display applications recently. However, the applications of OLEDs in lighting are still limited due to their complex device structures. Here, we developed a novel phosphor doped glass substrate with both high scattering and excellent color conversion capability to greatly simplify the device structures of white organic light-emitting diodes (WOLEDs). A simple-structured WOLED comprising a blue OLED and the scattering fluorescent substrate was demonstrated to realize high quality white light for lighting applications. The WOLED exhibits a turn-on voltage of 2.7 V, a maximum power efficiency of 29.8 lm/W, an external quantum efficiency (EQE) of 14.2%, a color rendering index (CRI) of 86, and a correlated color-temperature (CCT) of 3900 K. The low turn-on voltage can be attributed to the single emissive layer structure used in the WOLED. The high power efficiency as well as the high EQE are due to both the high color conversion efficiency and the high scattering capability of the fluorescent substrate. In addition, the WOLED is favorable for high-quality solid-state lighting in our daily life due to its high color rendering ability along with an adequate CCT CC.

AB - Organic light-emitting diodes (OLEDs) have shown great success in the display applications recently. However, the applications of OLEDs in lighting are still limited due to their complex device structures. Here, we developed a novel phosphor doped glass substrate with both high scattering and excellent color conversion capability to greatly simplify the device structures of white organic light-emitting diodes (WOLEDs). A simple-structured WOLED comprising a blue OLED and the scattering fluorescent substrate was demonstrated to realize high quality white light for lighting applications. The WOLED exhibits a turn-on voltage of 2.7 V, a maximum power efficiency of 29.8 lm/W, an external quantum efficiency (EQE) of 14.2%, a color rendering index (CRI) of 86, and a correlated color-temperature (CCT) of 3900 K. The low turn-on voltage can be attributed to the single emissive layer structure used in the WOLED. The high power efficiency as well as the high EQE are due to both the high color conversion efficiency and the high scattering capability of the fluorescent substrate. In addition, the WOLED is favorable for high-quality solid-state lighting in our daily life due to its high color rendering ability along with an adequate CCT CC.

KW - Organic light-emitting diodes

KW - Color conversion

KW - Out-coupling

KW - Scattering

KW - Lighting

U2 - 10.1016/j.orgel.2020.106045

DO - 10.1016/j.orgel.2020.106045

M3 - Article

SN - 1566-1199

VL - 89

SP - 1

EP - 7

JO - Organic Electronics

JF - Organic Electronics

M1 - 106045

ER -

Novel scattering and color converting substrates for simple-structured white organic light-emitting diodes

Abstract

Keywords

Access to Document

Fingerprint

Cite this