کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1595702 | 1515717 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature-modulated scanning tunneling spectroscopy of gold nanoparticle dropcast films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The electronic conductivity of a gold nanoparticle dropcast film was examined by temperature-modulated scanning tunneling spectroscopy (STS). The low-conductance Coulomb blockade was found to shrink with increasing temperature, which at ambient temperature (ca. 290Â K) diminished completely. Concomitantly, the potential spacing between adjacent peaks observed in the Coulomb staircase features exhibited a marked increase at approximately the same temperature. Both observations suggest an enhancement of the particle film electronic conductivity with increasing temperature. Such a transition was ascribed to the combined consequence of thermal activation of interparticle charge transfer and particle coherent thermal motions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 144, Issues 3â4, October 2007, Pages 124-127
Journal: Solid State Communications - Volume 144, Issues 3â4, October 2007, Pages 124-127
نویسندگان
Shaowei Chen, Li-Ping Xu, Sulolit Pradhan, Wei Chen,