Efficient and stable deep blue polymer light-emitting devices based on β-phase poly(9,9-dioctylfluorene)

Xinwen Zhang; Qi Hu; Jinyi Lin; Zhenfeng Lei; Xin Guo; Linghai Xie; Wenyong Lai; Wei Huang

doi:10.1063/1.4824766

Efficient and stable deep blue polymer light-emitting devices based on β-phase poly(9,9-dioctylfluorene)

Xinwen Zhang, Qi Hu, Jinyi Lin, Zhenfeng Lei, Xin Guo, Linghai Xie, Wenyong Lai, Wei Huang

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

In this work, the thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized using 1,2-dichloroethane as solvent. The absorption and photoluminescence spectra show an additional absorption peak at 435 nm and a red-shifted emission band, which indicates the formation of β-phase in the film. Polymer light-emitting devices based on thin films of β-phase PFO were fabricated. Device with β-phase exhibits efficiency of up to 3.43 cd/A that is 3.7 times higher than that of the device with amorphous phase. Furthermore, the device with β-phase emission has obvious advantages such as stable deep blue emission and high color purity over amorphous-phase device.

Original language	English
Article number	153301
Journal	Applied Physics Letters
Volume	103
Issue number	15
DOIs	https://doi.org/10.1063/1.4824766
State	Published - 7 Oct 2013
Externally published	Yes

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title = "Efficient and stable deep blue polymer light-emitting devices based on β-phase poly(9,9-dioctylfluorene)",

abstract = "In this work, the thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized using 1,2-dichloroethane as solvent. The absorption and photoluminescence spectra show an additional absorption peak at 435 nm and a red-shifted emission band, which indicates the formation of β-phase in the film. Polymer light-emitting devices based on thin films of β-phase PFO were fabricated. Device with β-phase exhibits efficiency of up to 3.43 cd/A that is 3.7 times higher than that of the device with amorphous phase. Furthermore, the device with β-phase emission has obvious advantages such as stable deep blue emission and high color purity over amorphous-phase device.",

author = "Xinwen Zhang and Qi Hu and Jinyi Lin and Zhenfeng Lei and Xin Guo and Linghai Xie and Wenyong Lai and Wei Huang",

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T1 - Efficient and stable deep blue polymer light-emitting devices based on β-phase poly(9,9-dioctylfluorene)

AU - Zhang, Xinwen

AU - Hu, Qi

AU - Lin, Jinyi

AU - Lei, Zhenfeng

AU - Guo, Xin

AU - Xie, Linghai

AU - Lai, Wenyong

AU - Huang, Wei

PY - 2013/10/7

Y1 - 2013/10/7

N2 - In this work, the thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized using 1,2-dichloroethane as solvent. The absorption and photoluminescence spectra show an additional absorption peak at 435 nm and a red-shifted emission band, which indicates the formation of β-phase in the film. Polymer light-emitting devices based on thin films of β-phase PFO were fabricated. Device with β-phase exhibits efficiency of up to 3.43 cd/A that is 3.7 times higher than that of the device with amorphous phase. Furthermore, the device with β-phase emission has obvious advantages such as stable deep blue emission and high color purity over amorphous-phase device.

AB - In this work, the thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized using 1,2-dichloroethane as solvent. The absorption and photoluminescence spectra show an additional absorption peak at 435 nm and a red-shifted emission band, which indicates the formation of β-phase in the film. Polymer light-emitting devices based on thin films of β-phase PFO were fabricated. Device with β-phase exhibits efficiency of up to 3.43 cd/A that is 3.7 times higher than that of the device with amorphous phase. Furthermore, the device with β-phase emission has obvious advantages such as stable deep blue emission and high color purity over amorphous-phase device.

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DO - 10.1063/1.4824766

M3 - 文章

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SN - 0003-6951

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Efficient and stable deep blue polymer light-emitting devices based on β-phase poly(9,9-dioctylfluorene)

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