The competition between countries is essentially the competition of innovative talents. However, China now faces multiple problems in the cultivation of innovative talents: the talents are weak in innovation ability; the high-level innovative talents are not sufficient; neither the quality or level of talents fully meet the demand of social and economic development. As a result, it is urgent for colleges to renovate the cultivation mode of innovative talents. Focusing on the cultivation of innovative talents majoring in architectural design, this paper thoroughly analyzed the extensible teaching mode for cultivating college students into innovative talents. Firstly, a questionnaire survey on relevant issues was carried out among employers and college graduates. The survey results revealed several problems with the innovative talent training in Chinese colleges, namely, the irrational curriculum design, the narrow scope of training objectives, and the lack of diverse teaching methods. Results verified, the employers are not highly satisfied with the innovative talents, especially the newly graduated ones. These problems are attributable to the weak professional development ability, poor teamwork ability, and insufficient innovation ability. To solve these problems, the authors analyzed and expounded the extensible teaching mode for the cultivation of innovative talents from four aspects: teaching content scope, teaching methods, teaching space, and appraisal. The research findings enrich the evidences of innovative talent training in Chinese colleges, providing a reference for improving the training quality of innovative talents.
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Obtaining an ideal ferroelectric photovoltaic (FE-PV) material with a narrow bandgap and a large ferroelectric polarization value can enable us to achieve great practical FE-PV performance. By the introduction of sulfur into the tetragonal BiCoO3 perovskite with a C-type antiferromagnetic ordering, it is found that the bandgap of BiCoO2S decreases significantly (about 1.2 eV) while maintaining a large polarization value (about 1.86 C m-2) that is similar to the value of 1.793 C m-2 of BiCoO3. Most noteworthy is that the optical absorption of BiCoO2S is remarkably higher than those of BiCoO3 and other FE-PV materials. The decrease of the BiCoO2S bandgap originates from the movement of Co 3d states to a low-energy position due to the reduction of the Co ionicity when the less electronegative sulfur is introduced into BiCoO3 to substitute oxygen. The narrow bandgap and the high optical absorption of the BiCoO2S films grown on different substrates are favorable for FE-PV applications. In addition, the bandgap of BiCoO2S can be modulated by the doping amount of sulfur, which can help us fabricate multilayer FE-PV devices based on different bandgaps from different layers.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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