scholarly journals Higher Light Extraction Efficiency in Organic Light-Emitting Devices by Employing 2D Periodic Corrugation

2022 ◽  
Vol 9 ◽  
Author(s):  
Yu Bai ◽  
Yahui Chuai ◽  
Yang Wang ◽  
Yingzhi Wang
Keyword(s):  
Surface Plasmon Polariton ◽  
Emission Spectra ◽  
Light Extraction Efficiency ◽  
Metallic Electrode ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Te Mode ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
1D Grating

Photons trapped in the form of waveguide (WG) modes associated with the organic–organic interface and in the form of surface plasmon polariton (SPP) modes associated with the metallic electrode–organic interface result in a large energy loss in organic light-emitting devices (OLEDs). Introducing gratings onto the metallic electrode is especially crucial for recovering the power lost to the associated SPP modes. In our research, we demonstrate the efficient outcoupling of SPP modes in TE mode by two-dimensional (2D) grating, which cannot excited in one-dimensional (1D) grating OLED. This causes a 62.5% increase in efficiency from 2D grating OLED than 1D grating OLED. The efficient outcoupling of the WG and SPP modes is verified by the numerical simulation of both the emission spectra and the field distribution.

Enhanced efficiency of organic light-emitting devices by using a directly imprinted nanopillared ultrathin metallic electrode

2020 ◽  
Vol 45 (17) ◽  
pp. 4879
Author(s):  
Chi Ma ◽  
Yue-Feng Liu ◽  
Xiu-Min Gao ◽  
Yan-Gang Bi ◽  
Xu-Lin Zhang ◽  
...  
Keyword(s):  
Metallic Electrode ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Influence of Device Configuration on External Quantum Efficiency in Organic Light-Emitting Devices

2000 ◽  
Vol 660 ◽  
Author(s):  
Masayuki Yahiro ◽  
Tetsuo Tsutsui
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Emission Spectra ◽  
Metal Electrode ◽  
Integrating Sphere ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Emissive Region ◽  
Organic Light Emitting Devices

ABSTRACTThe external quantum efficiency in conventional double-layer type organic light-emitting devices with different layer thickness was carefully evaluated. From the measurements of luminance and emission spectra, external quantum efficiency (uncorrected) was obtained.The correction due to the modification of spatial emission distribution was added from the measurements of spatial emission patterns. The external quantum efficiency, both uncorrected and corrected, showed strong dependency on the distance between a metal electrode and an emissive region. This variation was ascribed to the change of coupling-out efficiency. Independent experimental evaluations of apparent couple-out efficiency using an integrating sphere supported this interpretation.

Utilizing surface plasmon polariton mediated energy transfer for tunable double-emitting organic light-emitting devices

2010 ◽  
Vol 11 (3) ◽  
pp. 397-406 ◽  
Author(s):  
Kun-Cheng Tien ◽  
Ming-Shiang Lin ◽  
You-Heng Lin ◽  
Chih-Hung Tsai ◽  
Ming-Hung Shiu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Plasmon Polariton ◽  
Organic Light Emitting Devices
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