Controlled  β ‐Phase Formation in Poly(9,9‐di‐ n ‐octylfluorene) by Processing with Alkyl Additives | Zendy

Peet Jeffrey | Zendy; Brocker Erin | Zendy; Xu Yunhua | Zendy; Bazan Guillermo C. | Zendy

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Controlled β ‐Phase Formation in Poly(9,9‐di‐ n ‐octylfluorene) by Processing with Alkyl Additives

Author(s) -

Peet Jeffrey,

Brocker Erin,

Xu Yunhua,

Bazan Guillermo C.

Publication year - 2008

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200702515

Subject(s) - materials science , alkyl , polymer , phase (matter) , absorption (acoustics) , xylene , chemical engineering , polymer chemistry , analytical chemistry (journal) , organic chemistry , composite material , chemistry , engineering , benzene

By introducing 1,8‐diiodooctane (DIO) into solutions used to spin cast poly(9,9‐di‐ n ‐octylfluorene) films, the β ‐phase content can be tailored between 0 and 45%. The absorption of films cast from o ‐xylene containing between 0 and 16% DIO by volume is shown at left. In turn, this morphological change can lead to a ca. 50% increase in the efficiency of polymer light emitting diodes.

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