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China-United States Trade War : China’s action and the Impact to Taiwan
De Castro, Christia,Liao, Wan-Ling,Reynoso, Mitzi 동덕여자대학교 한중미래연구소 2018 한중미래연구 Vol.11 No.-
국제무역은 세계를 하나로 묶고 상호의존적인 관계를 형성시킨다. 미국과 중국은 세계의 가장 큰 경제로 이 둘의 긍정적인 관계는 세게 경제 안정과 발전의 핵심적인 요소로 작용한다. 하지만 최근의 미중 무역분쟁은 양국 관계의 긴장을 유발시키고 있다. 이 논문은 미중 무 역분쟁의 배경, 미국의 선제 행동과 중국의 대응 그리고 이 과정이 대만에 미치는 영향을 분석하고 있다. 이를 통해 미중무역분쟁의 과 정을 요액하고 함의를 도출하고자 한다. International trade helps to connect different parts of the world, establishing interdependent relations. China and the United States are the world’s largest economies and positive relations between these two countries is the key to global stability, and development (CCG, 2018). However, the recent trade war is causing tensions between Sino-US economic ties. This articletackles the background of the U.S.-China trade war, the United States Action and the response of China to the United States’s protectionist measure, and the impact of trade war to Taiwan and its actions towards the issue. This paper will conclude by summarizing the issue and show its implications.
Ghadiri, Elham,Shin, Donghyeop,Shafiee, Ashkan,Warren, Warren S.,Mitzi, David B. American Chemical Society 2018 ACS APPLIED MATERIALS & INTERFACES Vol.10 No.46
<P>In this paper, we analyze fundamental photoexcitation processes and charge carrier kinetics in Cu<SUB>2</SUB>BaSnS<SUB>4-<I>x</I></SUB>Se<SUB><I>x</I></SUB> (CBTSSe), a recently introduced alternative to Cu(In,Ga)(S,Se)<SUB>2</SUB> and Cu<SUB>2</SUB>ZnSnS<SUB>4-<I>x</I></SUB>Se<SUB><I>x</I></SUB> (CZTSSe) photovoltaic/photoelectrochemical absorbers, using advanced laser spectroscopy and microscopy techniques. The broadband pump-probe diffuse reflectance spectroscopy technique facilitates monitoring the ultrafast processes in opaque CBTSSe films deposited on Mo-coated glass substrates, similar to the configuration found in functional devices. We spectrally resolve a sharp ground-state bleaching (GSB) peak for CBTSSe films, formed around the band edge transition, which is spectrally narrower than the GSB and stimulated emission in corresponding CZTSSe films. The presence of sharp electronic transitions is further deduced from the ensemble pump-probe spectroscopy and steady-state UV-vis diffuse reflectance spectra. Furthermore, using pump-probe diffuse reflectance scanning microscopy, we monitor the charge carrier formation and excited state pattern within the film grains at few hundred nanometer resolution and localize the kinetics of photogenerated carriers in each grain. The unique sensitivity of pump-probe microscopy and sharp electronic transitions allow for detection of small S/Se stoichiometry variations, Δ<I>x</I> ≤ 0.3, in CBTSSe grains-i.e., features that are largely unresolved for ensemble spectroscopy or luminescence measurements. By noting the sharp band edge transition, we show that the band tailing issue (prevalent for CZTSSe) is largely resolved for CBTSSe; however, other issues may remain, such as deep defects and fast carriers relaxations, which may still impact the photocurrent and open circuit voltage of the CBTSSe devices/films examined.</P> [FIG OMISSION]</BR>