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Issue 27, 2012
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Novel oxygen sensor based on terfluorene thin-film and its enhanced sensitivity by stimulated emission

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Abstract

Ter(9,9-diarylfluorene) (TDF) neat film featuring oxygen sensing with advantages of fast response, reversibility and high efficiency is reported. The fast O2 fluorescence quenching process (4.0 × 1010 M−1 s−1) is unique and is mainly due to intact amorphous morphology of the TDF film, providing ample porous sites in nature so that O2 can travel therein freely. This, together with a large S1–T1 energy gap of TDF, leads to efficient O2 sensitization, i.e. the O2 induced S1–T1 intersystem crossing. The sensitivity can be further enhanced up to ∼10-fold and ∼20-fold in amplified spontaneous emission (ASE) and lasing action, respectively. The work thus demonstrated a new class of organic materials suited for high-speed, high-sensitivity oxygen sensing.

Graphical abstract: Novel oxygen sensor based on terfluorene thin-film and its enhanced sensitivity by stimulated emission

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Publication details

The article was received on 07 Feb 2012, accepted on 08 May 2012 and first published on 16 May 2012


Article type: Communication
DOI: 10.1039/C2JM30739A
Citation: J. Mater. Chem., 2012,22, 13446-13450
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    Novel oxygen sensor based on terfluorene thin-film and its enhanced sensitivity by stimulated emission

    H. Lin, M. Huang, Y. Chen, W. Lin, H. Cheng, C. Wu, T. Chao, T. Wang, K. Wong, K. Tang and P. Chou, J. Mater. Chem., 2012, 22, 13446
    DOI: 10.1039/C2JM30739A

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