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An Easy Approach to Control β-Phase Formation in PFO Films for Optimized Emission Properties.

ABSTRACT: We demonstrate a novel approach to control β-phase content generated in poly(9,9-dioctylfluorene) (PFO) films. A very small amount of paraffin oil was used as the additive to the PFO solution in toluene. The β-phase fraction in the spin-coated PFO films can be modified from 0% to 20% simply by changing the volume percentage of paraffin oil in the mixed solution. Organic light emitting diodes (OLEDs) and amplified spontaneous emission (ASE) study confirmed low β-phase fraction promise better OLEDs device, while high β-phase fraction benefits ASE performance.

SUBMITTER: Zhang Q

PROVIDER: S-EPMC6155933 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature

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An Easy Approach to Control β-Phase Formation in PFO Films for Optimized Emission Properties.

Zhang Qi Q Chi Lang L Hai Gang G Fang Yueting Y Li Xiangchun X Xia Ruidong R Huang Wei W Gu Erdan E

Molecules (Basel, Switzerland) 20170218 2

We demonstrate a novel approach to control β-phase content generated in poly(9,9-dioctylfluorene) (PFO) films. A very small amount of paraffin oil was used as the additive to the PFO solution in toluene. The β-phase fraction in the spin-coated PFO films can be modified from 0% to 20% simply by changing the volume percentage of paraffin oil in the mixed solution. Organic light emitting diodes (OLEDs) and amplified spontaneous emission (ASE) study confirmed low β-phase fraction promise better OLED ...[more]

PMID: 28218704

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