Study of the Light Coupling Efficiency of OLEDs Using a Nanostructured Glass Substrate

We study theoretically the enhancement of the light extraction from an OLED (Organic Light-Emitting Diode) with nanoair-bubbles embedded inside a glass substrate. Due to such a nanostructure inside the substrate, the critical angle which limits the light extraction outside the substrate from the OLED is increased. The theoretical results show that the nanoair bubbles near by the substrate surface can improve the efficiency of the light extraction by 7%. Such a substrate may also be suitable for photovoltaic cells or display screens.

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Improved light coupling efficiency of organic light-emitting diode and polymer optical waveguide integrated device by grating coupler

Optoelectronics Letters ◽

10.1007/s11801-021-1011-8 ◽

2021 ◽

Vol 17 (10) ◽

pp. 598-603

Author(s):

Song Wei ◽

Chang Liu ◽

Houyun Qin ◽

Yiming Liu ◽

Changming Chen ◽

...

Keyword(s):

Optical Waveguide ◽

Light Emitting Diode ◽

Coupling Efficiency ◽

Grating Coupler ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Light Coupling ◽

Integrated Device

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Toward Organic Light Emitting Diode Satisfying Simultaneously Highly Enhanced Light Extraction and Lowly Ambient Light Reflection

Advanced Materials Technologies ◽

10.1002/admt.202101078 ◽

2021 ◽

pp. 2101078

Author(s):

Gyu Jin Choi ◽

Jeong Won Ryu ◽

Ji‐Young Jeong ◽

Tae‐Jin Je ◽

Dong Ki Yoon ◽

...

Keyword(s):

Light Emitting Diode ◽

Light Extraction ◽

Light Reflection ◽

Ambient Light ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light

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The Enhanced Light Extraction Top-emitting Organic Light-emitting Diode Based on Metallic Grating Anode

2019 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) ◽

10.1109/3m-nano46308.2019.8947392 ◽

2019 ◽

Author(s):

Dun Qiao ◽

Kang Li ◽

Nigel Copner ◽

Yongkang Gong ◽

Guoji Chen

Keyword(s):

Light Emitting Diode ◽

Light Extraction ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Metallic Grating ◽

Organic Light

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P-145: Light Extraction from Organic Light Emitting Diode Lighting with Low Haze by Selective Microlens Arrays

SID Symposium Digest of Technical Papers ◽

10.1002/j.2168-0159.2014.tb00406.x ◽

2014 ◽

Vol 45 (1) ◽

pp. 1530-1532

Author(s):

Ju Hyun Hwang ◽

Hyun Jun Lee ◽

Kyung Bok Choi ◽

Yong Sub Shim ◽

Sun-Gyu Jung ◽

...

Keyword(s):

Light Emitting Diode ◽

Light Extraction ◽

Microlens Arrays ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light

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Tri-Metal Layered Semitransparent Electrode for Red Phosphorescent Organic Light-Emitting Diodes

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2015.11268 ◽

2015 ◽

Vol 15 (10) ◽

pp. 8144-8148 ◽

Cited By ~ 1

Author(s):

Jae Woo Lee ◽

Ho Won Lee ◽

Song Eun Lee ◽

Hyung Jin Yang ◽

Sung Kyu Lee ◽

...

Keyword(s):

Indium Tin Oxide ◽

Glass Substrate ◽

Light Emitting Diode ◽

Metal Layer ◽

Flexible Substrate ◽

Flexible Display ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light Emitting Diode ◽

Organic Light

In this paper, we fabricated tri-metal layered thin film semitransparent electrodes consisting of a thin conductive metal layer, sandwiched between two nickel layers. An equal red phosphorescent organic light-emitting diode (PHOLED) structure was deposited on the anodes of indium tin oxide (ITO) and three types of tri-metal layers (Ni/Al/Ni, Ni/Cu/Ni, and Ni/Ag/Ni, thickness of 3/7/3 nm in common) on a glass substrate. The optical and electrical performances of the device using Ni/Ag/Ni were improved more than the performances of the other devices due to the micro-cavity effect in accordance with the various electrode characteristics. Moreover, we fabricated the same red PHOLED structures on a flexible substrate, as a consequence, showed competitive emission characteristics compared to the devices fabricated on a glass substrate. Therefore, this study could succeed to additional research on flexible display panel and light-emitting devices with ITO-free electrodes.

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