کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5441179 | 1510377 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Ag2WO4 on the electrical and optical properties of AgI-AgPO3 glasses and fibers for electrophysiology applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Glasses and fibers belonging to the AgIâAgPO3âAg2WO4 system are investigated for their combined optical transmission in the visible region and AC electrical conductivity. These glasses combine characteristics that are essentials for a direct application in the fields of optogenetic and electrophysiology. The addition of silver tungstate (Ag2WO4) into the pseudo binary silver iodide phosphate glasses (AgIâAgPO3) allows to increase the durability of the materials against hydrolysis while maintaining an optical transparency in the visible range (450 to 900 nm). AC electrical conductivity ranging from 10â3 up to 10â2 S·cmâ1 at 1 MHz frequency was measured on the bulk glasses at room temperature. Moreover, the progressive addition of silver tungstate from 0 to 20 mol% results in a linear increase of the glass transition temperature from 106 to 219 °C. Electric conductor and light guiding glass fibers of 175 μm core diameter were then successfully fabricated by glass preform drawing. Their electrical conductivity at room temperature was measured to be around 0.26 S·cmâ1 at an AC frequency of 1 MHz. These fibers also show optical losses around 5 dB·mâ1 between 400 and 500 nm, making them suitable for the transmission in the blue spectral region used in optogenetic/electrophysiology. This new AgIâAgPO3âAg2WO4 vitreous system offers glass compositions that are more appropriate in terms of optical transmission to produce multifunctional fibers for electrophysiology experiments than AgIâAgPO3âWO3 glasses previously reported.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 470, 15 August 2017, Pages 61-69
Journal: Journal of Non-Crystalline Solids - Volume 470, 15 August 2017, Pages 61-69
نویسندگان
Mickaël Blais-Roberge, Maxime Rioux, Yannick Ledemi, Younès Messaddeq,