Fabrication of α- and β-phase poly(9,9-dioctylfluorene) thin films

被引：31

作者：

Azuma, Hironobu ^{[1
]}

Asada, Kohei ^{[1
]}

Kobayashi, Takashi ^{[1
]}

Naito, Hiroyoshi ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Phys & Elect, Sakai, Osaka 5998531, Japan

来源：

THIN SOLID FILMS | 2006年 / 509卷 / 1-2期

基金：

日本学术振兴会;

关键词：

poly(9,9-dioctylfluorene) (F8); alpha phase; beta phase; optical absorption; photoluminescence; drop-cast method; vapor treatment; spin-coating method;

D O I：

10.1016/j.tsf.2005.09.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

alpha- and beta-phase formation of poly (9,9-dioctylfluorene) (F8) has been investigated in terms of optical absorption and photoluminescence measurements. beta-phase F8 thin films are prepared by a drop-cast method or by exposing spin-coated F8 thin films to toluene vapor. It is found from film-thickness dependence of PL spectra that alpha phase is formed in spin-coated F8 thin films whose thickness is less than 200 nm, while the coexistence of alpha and beta phases is observed in the thin films with thickness of > 200 nm. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：182 / 184

页数：3

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