The influence of the drying process on electrochemical properties of P3HT/PCBM (1.00/0.25 wt%) electrodes

被引：13

作者：

Marchesi, L. F. ^{[1
,2
]}

Pereira, E. C. ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, DQ UFSCar, Lab Mat Nanoestruturados Fabricados Eletroquim Na, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Tecnol Fed Parana, BR-84016210 Ponta Grossa, PR, Brazil

来源：

SYNTHETIC METALS | 2014年 / 194卷

基金：

巴西圣保罗研究基金会;

关键词：

Polymer morphology; P3HT/PCBM electrodes; Electrochemical impedance spectroscopy; POLYMER SOLAR-CELLS; POROUS FILM ELECTRODES; HIGH-PERFORMANCE; MORPHOLOGY EVOLUTION; ANOMALOUS TRANSPORT; IMPEDANCE ANALYSIS; SELF-ORGANIZATION; ACTIVE LAYER; DIFFUSION; FULLERENE;

D O I：

10.1016/j.synthmet.2014.04.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The characterization of P3HT/PCBM thin films electrodes synthesized using different drying conditions is presented in this paper. P3HT/PCBM thin film was painted on ITO substrate from a composite solution and the solvent was dried slowly, at 30 degrees C for 12 h, or rapidly, at 100 degrees C for 10 min. Atomic force microscopy data shows the formation of fibrilar-like nanostructures for the films slowly dried, behavior not observed for the films rapidly dried. The distinct morphologies had an impact on the electrochemical properties, once these electrodes containing fibrilar-like nanostructures have exhibited a better conductivity, as showed by the cyclic voltammetry response. Besides, EIS data confirms such behavior, revealing that the calculated charge transfer resistance is one order of magnitude smaller for the films slowly dried than for those quickly dried. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：82 / 87

页数：6

共 51 条

[1] Structural anisotropy of poly(alkylthiophene) films [J].