Fluorine-Induced Enhancement of the Oxidation Stability and Deep-Blue Optical Activity in Conductive Polyfluorene Derivatives

被引：20

作者：

Calzolari, Arrigo ^{[1
,2
]}

Vercelli, Barbara ^{[3
]}

Ruini, Alice ^{[1
,4
]}

Virgili, Tersilla ^{[5
]}

Pasini, Mariacecilia ^{[6
]}

机构：

[1] CNR NANO Ist Nanosci, Ctr S3, I-41125 Modena, Italy

[2] Univ N Texas, Dept Phys, Denton, TX 76203 USA

[3] Ist CNR Energet & Interfasi, I-20125 Milan, Italy

[4] Univ Modena & Reggio Emilia, Dipartimento Fis Informat & Matemat, I-41125 Modena, Italy

[5] Ist CNR Foton & Nanotecnol, I-20132 Milan, Italy

[6] Ist CNR Studio Macromol, I-21133 Milan, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 50期

关键词：

CONJUGATED POLYMERS; ORGANIC SEMICONDUCTORS; EMISSION PROPERTIES; STABILIZATION; ELECTRONICS; THIOPHENE; PYRROLE; CHAINS;

D O I：

10.1021/jp409996m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a joint experimental/theoretical study on the effects of fluorination on structural, electronic, and optical properties of poly[(9,9-di-n-octylfluoren-2,7-diyl)-alt-tetrafluoro-p-phenylene] (PFTFP), a polyfluorene (PFO)-derived conjugated polymer. The combination of optical (UV-vis) and electrochemical (cyclic voltammetry) techniques with atomistic simulations demonstrates an improved oxidative stability of the fluorinated compound with respect to standard PFO. The resulting excellent luminescence efficiency along with the preservation of the good charge mobility, characteristic of the pristine PFO, make PFTFP a superior material for optoelectronic applications in the deep-blue. The comparison with auxiliary model systems provides a microscopic identification of the peculiar effects of fluorine on the structural and electronic properties of the polymer.

引用

页码：26760 / 26767

页数：8

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