کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9812565 | 1518115 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical detection of ion diffusion in electrochromic poly(3,4-ethylenedioxy)thiophene film using microcantilever electrodes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We present measurements of microscale electrochromic switching of poly(3,4-ethylenedioxy)thiophene doped with poly(4-styrene sulfonate), thin film using microfabricated multi-point probe electrodes. After treatment with a dilute hydrochloric acid, a voltage bias above 3 V with respect to the ground potential of the film induced dark (light-absorbing) rings, which spread out from the anode on a time scale of seconds. The rate of expansion of the rings as well as the final diameter depended on the bias voltage. Using two micro four-point probes simultaneously, we measured with one probe the conductance of the film outside, near and inside a dark ring induced by a voltage applied to another probe and found the resistivity to be directly related to the observed absorbance of the film. The standard electrochromic mechanism of ion insertion was used to explain the observations. We anticipate this experimental approach to provide new insight into ion diffusion in electrochromic films, allowing real-time recording of diffusion dynamics on a microscale to be studied directly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 484, Issues 1â2, 22 July 2005, Pages 334-340
Journal: Thin Solid Films - Volume 484, Issues 1â2, 22 July 2005, Pages 334-340
نویسندگان
Rong Lin, Kurt Stokbro, Dorte Nørgaard Madsen, Emmanuelle Boubour, Peter Bøggild,