| ชื่อเรื่อง | : | Large size self-assembled quantum rings : quantum size effect and modulation on the surface diffusion |
| นักวิจัย | : | Tong, Cunzhu , Yoon, Soon Fatt , Wang, Lijun |
| คำค้น | : | DRNTU::Engineering::Electrical and electronic engineering. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2555 |
| อ้างอิง | : | Tong, C., Yoon, S. F., & Wang, L. (2012). Large size self-assembled quantum rings : quantum size effect and modulation on the surface diffusion. Nanoscale research letters, 7(1), 520-525. , 1556-276X , http://hdl.handle.net/10220/18688 , http://dx.doi.org/10.1186/1556-276X-7-520 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Nanoscale research letters |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | We demonstrate experimentally the submicron size self-assembled (SA) GaAs quantum rings (QRs) by quantum size effect (QSE). An ultrathin In0.1 Ga0.9As layer with different thickness is deposited on the GaAs to modulate the surface nucleus diffusion barrier, and then the SA QRs are grown. It is found that the density of QRs is affected significantly by the thickness of inserted In0.1 Ga0.9As, and the diffusion barrier modulation reflects mainly on the first five monolayer . The physical mechanism behind is discussed. The further analysis shows that about 160 meV decrease in diffusion barrier can be achieved, which allows the SA QRs with density of as low as one QR per 6 μm2. Finally, the QRs with diameters of 438 nm and outer diameters of 736 nm are fabricated using QSE. |
| บรรณานุกรม | : |
Tong, Cunzhu , Yoon, Soon Fatt , Wang, Lijun . (2555). Large size self-assembled quantum rings : quantum size effect and modulation on the surface diffusion.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Tong, Cunzhu , Yoon, Soon Fatt , Wang, Lijun . 2555. "Large size self-assembled quantum rings : quantum size effect and modulation on the surface diffusion".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Tong, Cunzhu , Yoon, Soon Fatt , Wang, Lijun . "Large size self-assembled quantum rings : quantum size effect and modulation on the surface diffusion."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print. Tong, Cunzhu , Yoon, Soon Fatt , Wang, Lijun . Large size self-assembled quantum rings : quantum size effect and modulation on the surface diffusion. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.
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