کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1442865 | 1509450 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecular rectification: Confirmation of its molecular origin by chemical suppression of the electrical asymmetry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
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چکیده انگلیسی
Bis[N-(ω-decyl)-5-(4-dimethylaminonaphthalen-1-yl-methylene)]-5,6,7,8-tetrahydroisoquin-olinium]-disulfide diiodide forms self-assembled monolayers (SAMs) on gold substrates in which the acceptor–(π-bridge)–donor moieties are aligned: Au|Au–S–C10H20–A+–π–D (I−). These diode-like molecules exhibit rectification ratios of 30–80 at ±1 V but display symmetrical current–voltage (I–V) characteristics when exposed to HCl and rectify again when exposed to NH3. This reversible switching is explained by protonation/deprotonation of the amino group which disrupts/restores the donor–acceptor combination and provides evidence of the molecular origin of the electrical asymmetry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 159, Issues 21–22, November 2009, Pages 2282–2285
Journal: Synthetic Metals - Volume 159, Issues 21–22, November 2009, Pages 2282–2285
نویسندگان
Geoffrey J. Ashwell, Abdul Mohib, Christopher J. Collins, Amirreza Aref,