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Issue 8, 2015
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A pure blue emitter (CIEy ≈ 0.08) of chrysene derivative with high thermal stability for OLED

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Abstract

A chrysene derivative, BPCC (6,12-bis(9-phenyl-9H-carbazol-3-yl)chrysene), possessing high thermal stability with a high glass transition temperature (Tg = 181 °C) was synthesized. Carbazole groups were introduced to improve its hole transporting properties and suppress crystallization. The device using BPCC as the emitter shows pure saturated blue emission color with coordinates of (0.16, 0.08). Furthermore, utilizing transporting materials with high triplet energy, e.g., TAPC (1,1-bis[4-[N,N-di(p-tolyl)aminophenyl]cyclohexane) and TemPPB (1,2,4,5-tetra(3-pyrid-3-yl-phenyl)benzene) as the hole transport layer (HTL) and electron transport layer (ETL), respectively, the maximum external quantum efficiency (EQE) is 4.9%. It shows a great potential as a highly efficient pure blue emitter for organic light-emitting devices (OLEDs).

Graphical abstract: A pure blue emitter (CIEy ≈ 0.08) of chrysene derivative with high thermal stability for OLED

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Publication details

The article was received on 22 Nov 2014, accepted on 17 Dec 2014 and first published on 19 Dec 2014


Article type: Paper
DOI: 10.1039/C4TC02669A
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Citation: J. Mater. Chem. C, 2015,3, 1794-1798

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    A pure blue emitter (CIEy ≈ 0.08) of chrysene derivative with high thermal stability for OLED

    Y. Chung, L. Sheng, X. Xing, L. Zheng, M. Bian, Z. Chen, L. Xiao and Q. Gong, J. Mater. Chem. C, 2015, 3, 1794
    DOI: 10.1039/C4TC02669A

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