Efficient Light Extraction of Organic Light-Emitting Diodes on a Fully Solution-Processed Flexible Substrate
Abstract
A flexible, nanocomposite substrate for maximizing light outcoupling efficiencies of organic light-emitting diodes (OLEDs) is introduced. In depth investigation is performed on designing the integrated strategy based on considerations of surface conductivity, microcavity tuning, and internal light scattering. The resulting nanocomposite substrate consists of silver nanowires as the electrode and a high-index polymer layer and a light-scattering layer for light extraction. It is able to outcouple both the waveguide and the substrate modes, two modes accounting for significant losses in OLED device efficiency. With enhanced light outcoupling, white OLEDs subsequently fabricated on the nanocomposite substrates demonstrate performance metrics of 107 lm W-1 power efficiency and 49% external quantum efficiency at 1000 cd m-2. Thus, the nanocomposite substrate is fabricated by solution processes at low temperatures for potentially low manufacturing cost.
- Authors:
-
- Univ. of California, Los Angeles, CA (United States). Henry Samueli School of Engineering and Applied Science and Dept. of Materials Science and Engineering
- Publication Date:
- Research Org.:
- Univ. of California, Los Angeles, CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1429113
- Alternate Identifier(s):
- OSTI ID: 1390639
- Grant/Contract Number:
- EE0006674
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Optical Materials
- Additional Journal Information:
- Journal Volume: 5; Journal Issue: 18; Journal ID: ISSN 2195-1071
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; OLED; substrate; transparent electrode; lighting; composite materials; electronic strucutres; flexible electronics; organic light-emitting diodes
Citation Formats
Tong, Kwing, Liu, Xiaofeng, Zhao, Fangchao, Chen, Dustin, and Pei, Qibing. Efficient Light Extraction of Organic Light-Emitting Diodes on a Fully Solution-Processed Flexible Substrate. United States: N. p., 2017.
Web. doi:10.1002/adom.201700307.
Tong, Kwing, Liu, Xiaofeng, Zhao, Fangchao, Chen, Dustin, & Pei, Qibing. Efficient Light Extraction of Organic Light-Emitting Diodes on a Fully Solution-Processed Flexible Substrate. United States. https://doi.org/10.1002/adom.201700307
Tong, Kwing, Liu, Xiaofeng, Zhao, Fangchao, Chen, Dustin, and Pei, Qibing. Tue .
"Efficient Light Extraction of Organic Light-Emitting Diodes on a Fully Solution-Processed Flexible Substrate". United States. https://doi.org/10.1002/adom.201700307. https://www.osti.gov/servlets/purl/1429113.
@article{osti_1429113,
title = {Efficient Light Extraction of Organic Light-Emitting Diodes on a Fully Solution-Processed Flexible Substrate},
author = {Tong, Kwing and Liu, Xiaofeng and Zhao, Fangchao and Chen, Dustin and Pei, Qibing},
abstractNote = {A flexible, nanocomposite substrate for maximizing light outcoupling efficiencies of organic light-emitting diodes (OLEDs) is introduced. In depth investigation is performed on designing the integrated strategy based on considerations of surface conductivity, microcavity tuning, and internal light scattering. The resulting nanocomposite substrate consists of silver nanowires as the electrode and a high-index polymer layer and a light-scattering layer for light extraction. It is able to outcouple both the waveguide and the substrate modes, two modes accounting for significant losses in OLED device efficiency. With enhanced light outcoupling, white OLEDs subsequently fabricated on the nanocomposite substrates demonstrate performance metrics of 107 lm W-1 power efficiency and 49% external quantum efficiency at 1000 cd m-2. Thus, the nanocomposite substrate is fabricated by solution processes at low temperatures for potentially low manufacturing cost.},
doi = {10.1002/adom.201700307},
journal = {Advanced Optical Materials},
number = 18,
volume = 5,
place = {United States},
year = {Tue Jul 18 00:00:00 EDT 2017},
month = {Tue Jul 18 00:00:00 EDT 2017}
}
Web of Science
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