کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1267438 972346 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spin polarization effects of zigzag-edge graphene electrodes on the rectifying performance of the D-σ-A molecular diode
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Spin polarization effects of zigzag-edge graphene electrodes on the rectifying performance of the D-σ-A molecular diode
چکیده انگلیسی

Sandwiching the D-σ-A molecule between zigzag-edge graphene nanoribbon (ZGNR) electrodes to construct a particular diode and simultaneously considering the reported experimental results that the demonstration of different spin-polarized states of ZGNRs is possible under different conditions, we perform the first-principles calculations on rectifying behaviors of such a diode. It has been found that its rectification ratio is greatly enhanced by ZGNR electrodes (the maximum rectification ratio >700) as compared with that by metal electrodes where its highest rectification ratio only in the order of 10 was reported. Also predicted is that its rectifying behaviors strongly depends on spin-polarized states of ZGNR electrodes, when electrodes take the AFM state (anti-ferromagnetic state), it has a best rectifying behavior.

Figure optionsDownload as PowerPoint slideHighlights
► The D-σ-A molecule is sandwiched between zigzag-edge graphene nanoribbon electrodes.
► Its rectifying performance strongly depends on spin-polarized states of electrodes.
► The best rectifying behavior is achieved when electrodes take the anti-ferromagnetic state.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 14, Issue 3, March 2013, Pages 958–965
نویسندگان
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