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Charging mechanism in a SiO2 matrix embedded with Si nanocrystals

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Charging mechanism in a SiO2 matrix embedded with Si nanocrystals
นักวิจัย : Liu, Yang , Chen, Tupei , Ding, Liang , Zhang, Sam , Fu, Yong Qing , Fung, Stevenson Hon Yuen
คำค้น : DRNTU::Engineering::Electrical and electronic engineering. , DRNTU::Engineering::Mechanical engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2549
อ้างอิง : Liu, Y., Chen, T. P., Ding, L., Zhang, S., Fu, Y. Q., & Fung, S. H. Y., (2006). Charging mechanism in a SiO2 matrix embedded with Si nanocrystals. Journal of Applied Physics, 100, 1-3. , 0021-8979 , http://hdl.handle.net/10220/6404 , http://dx.doi.org/10.1063/1.2374929
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of applied physics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

One of the applications of a Si nanocrystals (nc-Si) embedded in a SiO2 matrix is in the area of nonvolatile memory devices based on the charge storage in the material system. However, whether the charge trapping mainly occurs at the nc-Si/SiO2 interface or in the nc-Si is still unclear. In this work, by x-ray photoemission spectroscopy analysis of the Si 2p peaks, the concentrations of both the nc-Si and the Si suboxides that exist at the nc-Si/SiO2 interface are determined as a function of thermal annealing, and the charging effect is also measured by monitoring the shift of the surface C 1s peak. It is observed that the annealing-caused reduction of the total concentration of the interfacial suboxides is much faster than that of both the C 1s shift and the nc-Si concentration. In addition, the trend of the C 1s shift coincides with that of the nc-Si concentration. The results suggest that the Si nanocrystal, rather than the nc-Si/SiO2 interface, plays the dominant role in the charging effect.

บรรณานุกรม :
Liu, Yang , Chen, Tupei , Ding, Liang , Zhang, Sam , Fu, Yong Qing , Fung, Stevenson Hon Yuen . (2549). Charging mechanism in a SiO2 matrix embedded with Si nanocrystals.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Liu, Yang , Chen, Tupei , Ding, Liang , Zhang, Sam , Fu, Yong Qing , Fung, Stevenson Hon Yuen . 2549. "Charging mechanism in a SiO2 matrix embedded with Si nanocrystals".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Liu, Yang , Chen, Tupei , Ding, Liang , Zhang, Sam , Fu, Yong Qing , Fung, Stevenson Hon Yuen . "Charging mechanism in a SiO2 matrix embedded with Si nanocrystals."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2549. Print.
Liu, Yang , Chen, Tupei , Ding, Liang , Zhang, Sam , Fu, Yong Qing , Fung, Stevenson Hon Yuen . Charging mechanism in a SiO2 matrix embedded with Si nanocrystals. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2549.