Browsing by Author "Sun, Chia-Liang"

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Atomistic nucleation sites of Pt nanoparticles on N-doped carbon nanotubes
(2013)
Sun, Chia-Liang
;
Pao, Chih-Wen
;
Tsai, Huang-Ming
;
Chiou, Jau-Wern
;
Ray, Sekhar C.
The atomistic nucleation sites of Pt nanoparticles (Pt NPs) on N-doped carbon nanotubes (N-CNTs) were investigated using C and N K-edge and Pt L-3-edge X-ray absorption near-edge structure (XANES)/extended X-ray absorption fine structure (EXAFS) spectroscopy. Transmission electron microscopy and XANES/EXAFS results revealed that the self-organized Pt NPs on N-CNTs are uniformly distributed because of the relatively high binding energies of the adsorbed Pt atoms at the imperfect sites. During the atomistic nucleation process of Pt NPs on N-CNTs, stable Pt-C and Pt-N bonds are presumably formed, and charge transfer occurs at the surface/interface of the N-CNTs. The findings in this study were consistent with density functional theory calculations performed using cluster models for the undoped, substitutional-N-doped and pyridine-like-N-doped CNTs.
Ferroelectric thin film processing for ferroelectric field-effect transistor
(2003-12-04)
Chen, San-Yuan
;
Chin, Albert
;
Sun, Chia-Liang
The present invention relates to a method for manufacturing a ferroelectric field-effect transistor, particularly to a ferroelectric field-effect transistor with a metal/ferroelectric/insulator/semiconductor (MFIS) gate capacitor structure. The method comprises steps of depositing a bismuth layered ferroelectric film on the insulator buffered Si, after a high-temperature thermal treatment, depositing an upper electrode on the bismuth layered ferroelectric film.