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Your search keyword '"*LIGHT emitting electrochemical cells"' showing total 2 results
Start Over Descriptor "*LIGHT emitting electrochemical cells" Topic lifetime Topic light-emitting electrochemical cells Journal organic electronics Publisher elsevier b.v.
2 results on '"*LIGHT emitting electrochemical cells"'

1. Solution-processable tandem solid-state light-emitting electrochemical cells.

Author

Lu, Jung-Sheng, Kuo, Jung-Chin, and Su, Hai-Ching

Subjects
*LIGHT emitting electrochemical cells, *SOLUTION (Chemistry), *CHEMICAL processes, *SOLID state chemistry, *RADIANCE, *CHEMICAL research
Abstract

Highlights: [•] Tandem solid-state light-emitting electrochemical cells (LECs) are demonstrated. [•] Doubled light outputs and device efficiencies can be achieved in comparison of single-layered LECs. [•] Higher device efficiencies and longer lifetimes can be obtained at a higher brightness. [Copyright &y& Elsevier]

Published
2013
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2. Stable blue-green light-emitting electrochemical cells based on a cationic iridium complex with phenylpyrazole as the cyclometalated ligands

Author

Hu, Tao, Duan, Lian, Qiao, Juan, He, Lei, Zhang, Deqiang, Wang, Ruji, Wang, Liduo, and Qiu, Yong

Subjects
*IRIDIUM, *CHEMICAL stability, *LIGHT emitting electrochemical cells, *METAL complexes, *PHENYLPYRAZOLES, *LIGANDS (Chemistry), *BAND gaps
Abstract

Abstract: A novel blue-green light-emitting cationic iridium complex [Ir(ppz)2pzpy]PF6 (complex 1), where ppz is phenylpyrazole and pzpy is 2-(1-phenyl-1H-pyrazol-3-yl)pyridine, is developed. Its crystal, photophysical and electrochemical properties are characterized through experiments and quantum chemical calculations. The novel complex exhibits enlarged energy gap and blue-shifted emission spectrum at 77K compared to a reference complex, [Ir(ppy)2pzpy]PF6 (complex 2), with phenylpyridine (ppy) as the cyclometalated ligands. Moreover, light-emitting electrochemical cells (LECs) fabricated with complex 1 show both improved color purity with CIE (Commission Internationale de L’Eclairage) coordinates of (0.25, 0.39) and elongated lifespan (t 1/2 =218min, E tot =0.55mJ) compared to LECs based on complex 2. [Copyright &y& Elsevier]

Published
2012
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