Device design for optimal exciton harvesting

G.L. Ingram; Z.H. Lu

doi:10.1117/12.2064731

8 October 2014 Device design for optimal exciton harvesting

G.L. Ingram, Z.H. Lu

Proceedings Volume 9183, Organic Light Emitting Materials and Devices XVIII; 91830Q (2014) https://doi.org/10.1117/12.2064731
Event: SPIE Organic Photonics + Electronics, 2014, San Diego, California, United States

Abstract

Organic light emitting diodes (OLEDs) show potential as the next generation solid state lighting technology. A major barrier to widespread adoption at this point is the efficiency droop that occurs for OLEDs at practical brightness (~ 5000 cd/m²) levels necessary for general lighting. We highlight recent progress in highly efficient OLEDs at high brightness, where improvements are made by managing excitons in these devices through rational device design. General design principles for monochrome OLEDs are discussed based on recent device architectures that have been successfully implemented. We expect that an improved understanding of exciton dynamics in OLEDs in combination with innovative device design will drive future development.

Citation Download Citation

G.L. Ingram and Z.H. Lu "Device design for optimal exciton harvesting", Proc. SPIE 9183, Organic Light Emitting Materials and Devices XVIII, 91830Q (8 October 2014); https://doi.org/10.1117/12.2064731

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KEYWORDS

Excitons

Organic light emitting diodes

Energy transfer

Molecules

Energy efficiency

External quantum efficiency

Electron transport

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