Printed Anodes and Internal Light Extraction Layers on Flexible Glass to Create Cost Effective and High Efficacy Bendable OLED Lighting Panels

Technical Report · Mon Apr 15 04:00:00 EDT 2019

DOI:https://doi.org/10.2172/1507567· OSTI ID:1507567

Spindler, Jeffrey ^[1]

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1. OLEDWorks LLC; OLEDWorks LLC; DOE EERE; OLEDWorks LLC

In this project, OLEDWorks developed a high efficacy and cost-effective flexible OLED lighting system which could reduce the cost of OLED light by introducing a combination of printable and scalable scattering type internal light extraction (ILE) and transparent conductive silver nanowire technologies that are compatible with roll-to-roll (R2R) processing methods. High efficacy was achieved by co-optimization of the internal light extraction, silver nanowire and ITO anodes, and stacked white OLED structure to reduce unwanted absorption, increase the outcoupling efficiency, and lower the OLED voltage. At the end of Phase I of this project a power efficacy of 90 lm/W was demonstrated in a flexible OLED lighting device based on ultrathin bendable glass. Without much additional work, the milestone of 100 lm/W is certainly within reach, and with further work on light extraction and white OLED materials, we believe 120 lm/W or higher is achievable within the next few years.

• Research Organization: OLEDWorks LLC
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
• DOE Contract Number: SC0018880
• OSTI ID: 1507567
• Report Number(s): DOE-OLEDWorks-18880-1
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
OLED
Solid State Lighting
SSL
Nanowires
Light extraction