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4 November 2016 Developing high mobility emissive organic semiconductors towards integrated optoelectronic devices (Conference Presentation)
Huanli Dong, Wenping Hu, Alan J. Heeger
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Proceedings Volume 9941, Organic Light Emitting Materials and Devices XX; 99411D (2016) https://doi.org/10.1117/12.2239179
Event: SPIE Organic Photonics + Electronics, 2016, San Diego, California, United States
Abstract
The achievement of organic semiconductors with both high mobility and strong fluorescence emission remains a challenge. High mobility requires molecules which pack densely and periodically, while serious fluorescence quenching typically occurs when fluorescent materials begin to aggregate (aggregation-induced quenching (AIQ)). Indeed, classical materials with strong fluorescent emission always exhibit low mobility, for example, tris(8-hydroxyquinoline) aluminium (ALQ) and phenylenevinylene-based polymers with mobility only 10-6-10-5 cm2V-1s-1, and benchmark organic semiconductors with high mobility demonstrate very weak emission, for example, rubrene exhibits a quantum yield﹤1% in crystalline state and pentacene shows very weak fluorescence in the solid state. However, organic semiconductors with high mobility and strong fluorescence are necessary for the achievement of high efficiency organic light-emitting transistors (OLETs) and electrically pumped organic lasers. Therefore, it is necessary for developing high mobility emissive organic/polymeric semiconductors towards a fast mover for the organic optoelectronic integrated devices and circuits.
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Huanli Dong, Wenping Hu, and Alan J. Heeger "Developing high mobility emissive organic semiconductors towards integrated optoelectronic devices (Conference Presentation)", Proc. SPIE 9941, Organic Light Emitting Materials and Devices XX, 99411D (4 November 2016); https://doi.org/10.1117/12.2239179
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KEYWORDS
Organic semiconductors
Luminescence
Organic light emitting transistors
Photonic integrated circuits
Aluminum
Fluorescent materials
Molecular aggregates
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