CdTe films are prepared by closed-space sublimation technology. Dependence of film crystalline on substrate materials and substrate temperature is investigated. It is found that films exhibit higher crystallinity at s...CdTe films are prepared by closed-space sublimation technology. Dependence of film crystalline on substrate materials and substrate temperature is investigated. It is found that films exhibit higher crystallinity at substrate temperature higher than 400 ℃. And the CdTe films deposited on CdS films with higher crystallinity have bigger crystallite and higher uniformity. Treatment with CdCl 2 methanol solution promotes the crystallite growth of CdTe films during annealing.展开更多
This paper describes the non-linguistic problems that prevent students from expressing themselves effectively at a more advanced level. It then proposes the integration of thinking instruction with the teaching of spe...This paper describes the non-linguistic problems that prevent students from expressing themselves effectively at a more advanced level. It then proposes the integration of thinking instruction with the teaching of speaking skills by arguing why and how effective thinking can improve the content and effectiveness of students' utterances. The last part of the paper discusses specific ways of developing thinking in the speaking skills class.展开更多
文摘CdTe films are prepared by closed-space sublimation technology. Dependence of film crystalline on substrate materials and substrate temperature is investigated. It is found that films exhibit higher crystallinity at substrate temperature higher than 400 ℃. And the CdTe films deposited on CdS films with higher crystallinity have bigger crystallite and higher uniformity. Treatment with CdCl 2 methanol solution promotes the crystallite growth of CdTe films during annealing.
文摘This paper describes the non-linguistic problems that prevent students from expressing themselves effectively at a more advanced level. It then proposes the integration of thinking instruction with the teaching of speaking skills by arguing why and how effective thinking can improve the content and effectiveness of students' utterances. The last part of the paper discusses specific ways of developing thinking in the speaking skills class.
