کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5183927 1381033 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In-situ QCM-D analysis reveals four distinct stages during vapour phase polymerisation of PEDOT thin films
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
In-situ QCM-D analysis reveals four distinct stages during vapour phase polymerisation of PEDOT thin films
چکیده انگلیسی

Gaining a deeper understanding of the growth of poly(3,4-ethylenedioxythiophene) (PEDOT) films by vapour phase polymerisation (VPP) is essential for the rational design and optimization of such films. The VPP process was used to synthesise films of PEDOT on oxidant-coated substrates. Atomic force microscopy images showed that the morphology of the films changed considerably with time. Utilising a quartz crystal microbalance with dissipation measurement (QCM-D), we found that the kinetics of polymerisation and the viscoelastic properties of the films varied. The data reveal four distinct stages in film growth. Each stage produces a layer having different conductivity values, from a low of 276 S cm−1 to a high of 1196 S cm−1. Conductivity and electrochromic optical contrast, Δ%Tx, can thus be maximized by appropriate termination of the polymerisation reaction. Factors determining the polymerisation rate and changes in conductivity and optical performance are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 51, Issue 8, 6 April 2010, Pages 1737-1743
نویسندگان
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