Browsing by Author "Wu, Chia-Hsin"

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Epitaxial single-crystal of GaSe epilayers grown on a c-sapphire substrate by molecular beam epitaxy
(2015-10-01)
Wu, Chia-Hsin
;
Yang, Chu-Shou
;
Wang, Yen-Chi
;
Huang, Hsi-Jung
;
Ho, Yen-Teng
In this study, hetero-epitaxy of GaSe epilayers on a c-sapphire substrate achieved using molecular beam epitaxy was demonstrated. The GaSe epitaxial growth was monitored using in situ reflection high-energy electron diffraction (RHEED). Streak RHEED patterns showed a flat and highly crystalline situation. Furthermore, two RHEED patterns were observed after 15min of growth, and they were correlated with the m-axis and a-axis of hexagonal GaSe. The single crystal of GaSe was verified using X-ray diffraction and high-resolution cross-section transmission electron microscopy. The full width at half-maximum of (0002) in the XRD rocking-curve spectrum of GaSe epilayer is obtain around 207arcsec, which is the smallest value observed to date. The epitaxial growth of GaSe demonstrated the feasibility of growing large-area epilayers.
Investigating Persuasion in Sustainable Design to Change Behaviour and Attitude
(2010-01-01)
Wu, Chia-Hsin
;
You, Hsiao-Chen
;
Deng, Yi-Shin
;
交大名義發表
;
National Chiao Tung University
Sustainable design is critical to our life and is considered a future trend. On the basis of human-centered design method, we have utilized a persuasive design prototype as a research tool to investigate the potential users' perspective on sustainable concept. With the findings we were able to understand the influential factors of sustainable design with respect to food-mileage concept. Furthermore, we foresee that these findings can be referenced for future design/research regarding attitudes and behaviour change.