کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595211 | 1507970 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Single electron tunneling and manipulation of nanoparticles on surfaces at room temperature
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This article focuses on surfaces containing nanoparticles and self-assembled monolayers (SAMs). These surfaces provide a simple and reliable platform for measurements of single electron tunneling (SET) properties of metal nanoparticles at room temperature. This approach of interfacial chemistry allows for the elimination of lateral motion of the individual nanoparticles during electronic property studies. The scanning tunneling microscopy (STM) in ultra-high vacuum is used as an accurate and reproducible probe for imaging and I-V characterization of individual or aggregated Au nanoparticles, revealing a large Coulomb gap (1.0Â eV) and fine Coulomb staircases (0.2-0.3Â eV) at room temperature. The surrounding decanethiol SAM provides an ideal reference for the imaging and I-V measurements of nanoparticles. These measurements provide a quantitative guide for regulating current and voltage, at which individual Au nanoparticles may be detached and manipulated with the STM tip.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 589, Issues 1â3, 1 September 2005, Pages 129-138
Journal: Surface Science - Volume 589, Issues 1â3, 1 September 2005, Pages 129-138
نویسندگان
Guohua Yang, Li Tan, Yiyun Yang, Shaowei Chen, Gang-Yu Liu,