电子传输材料:合成、性质和器件性能

有机化学国际期刊(英文) Pub Date : 2012-06-27 DOI:10.4236/IJOC.2012.22016

L. Cosimbescu, Liangle Wang, Monte L. Helm, Evgueni Polikarpov, J. Swensen, A. Padmaperuma

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引用次数: 6

摘要

本文报道了二苯并[b,d]噻吩-2-基三苯基硅烷(Si?87)和(二苯并[b,d]噻吩-2-基)二苯基硅烷(Siφ88)这两种硅烷基电子传输材料的设计、合成、表征、热学和光物理性质及其在蓝色有机发光器件(oled)中的性能。证明了这些材料在以(III)二[(4,6-二氟苯基)吡啶- n,C2 ']吡啶酸铱(Firpic)为磷光发射器的蓝色有机发光二极管中的应用。采用硅烷Siφ87作为电子传递材料(ETm)，在异质结构中获得了18.2%的EQE，功率效率为24.3 lm/W (1 mA/cm2时为5.8V)。当使用Siφ88时，EQE为18.5%，功率效率为26.0 lm/W (1 mA/cm2时5.5V)。

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Electron Transport Materials: Synthesis, Properties and Device Performance

We report the design, synthesis and characterization, thermal and photophysical properties of two silane based electron transport materials, dibenzo[b,d]thiophen-2-yltriphenylsilane (Si?87) and (dibenzo[b,d]thiophen-2-yl)diphenylsilane (Siφ88) and their performance in blue organic light emitting devices (OLEDs). The utility of these materials in blue OLEDs with iridium (III) bis[(4,6-difluorophenyl)-pyridinato-N,C2’]picolinate (Firpic) as the phosphorescent emitter was demonstrated. Using the silane Siφ87 as the electron transport material (ETm), an EQE of 18.2% was obtained, with a power efficiency of 24.3 lm/W (5.8V at 1 mA/cm2), in a heterostructure. When Siφ88 is used, the EQE is 18.5% with a power efficiency of 26.0 lm/W (5.5V at 1 mA/cm2).

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来源期刊

有机化学国际期刊(英文)

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297