کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10638457 | 995424 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemical bath deposition of Hg doped CdSe thin films and their characterization
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کلمات کلیدی
71.20.Nr81.15.Aa68.55.−a - 68.55.-a81.15.−z - 81.15.-Zoptical properties - خواص نوریElectrical conductivity - رسانایی الکتریکیchemical synthesis - سنتز شیمیاییThin films - فیلم های نازکElectron microscopy - میکروسکوپ الکترونیSemiconductivity - نیمه هدایتPowder diffraction - پراش پراشChalcogenides - کلوکوژنزها
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chemical bath deposition of Hg doped CdSe thin films and their characterization Chemical bath deposition of Hg doped CdSe thin films and their characterization](/preview/png/10638457.png)
چکیده انگلیسی
The deliberate addition of Hg in CdSe thin film have been carried out using a simple, modified, chemical bath deposition technique with the objective to study the effect of Hg doping on properties of CdSe thin films. Synthesis was initiated at 278Â K temperature using complexed cadmium sulphate, mercuric nitrate and sodium selenosulphate in an aqueous ammonical medium at pH 10. Films were characterized by XRD, SEM, optical absorption, electrical and thermoelectric techniques. The 'as deposited' films were uniform, well adherent, nearly stoichiometric and polycrystalline in a single cubic phase (zinc blende). Crystallite size determined from XRD and SEM was found to increase slightly with addition of Hg. The optical band gap of CdSe remains constant upto 0.05Â mol% Hg doping, while it decreases monotonically with further increase in mercury content. Dark dc electrical resistivity and conduction activation energy of CdSe were found to decrease initially upto 0.05Â mol% of Hg, thereafter increased for higher values of Hg but remains less than those of CdSe. All the films showed n-type of conductivity. A CdSe film containing 0.05Â mol% of Hg showed higher absorption coefficient, and conductivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 91, Issue 1, 15 May 2005, Pages 60-66
Journal: Materials Chemistry and Physics - Volume 91, Issue 1, 15 May 2005, Pages 60-66
نویسندگان
V.M. Bhuse,