Solar energy is a very important renewable energy source. Because of their advantages such as lightweight, good flexibility, low cost, and the capability to fabricate flexible large-area devices to convert sunlight to electricity, organic solar cells (OSCs) have been expected as one of the most promising technologies to utilize solar energy. In this paper, the development, performance parameters, working mechanism, and applications are briefly introduced.

With the emergence of intelligent portable electronics, more and more research attentions have been paid to flexible and wearable batteries with high energy density and high power density. In this paper, the development of flexible electrode materials, solid state electrolytes, device configurations and preparation technologies of flexible batteries are summarized, and then the existing problems of flexible batteries are discussed. Finally, the future development directions are envisioned.

According to actual situation of fine chemicals chemistry of chemical engineering and technology specialty in our school, LDI student achievement evaluation method was constructed around the goal of facilitating learning and aiding teaching. Teachers and students participated in the evaluation. This method started from three-link (including theoretical study, experiment, and innovation practice) and four-dimension (including self-study, classroom learning, experiment and innovation practice, and final exam). The evaluation contents were subdivided into multiple items which could guide the student to study, and comprehensively assess students' knowledge and ability. This method can not only improve the students' learning initiative, but also cultivate students' innovative consciousness and team spirit in the subtle ways.

This paper attempted to present a comprehensive experiment on the synthesis, structure and properties of dibenzothiophene derivative. The research frontier of chemistry was integrated into the fundamental knowledge and experimental skills of organic chemistry. The introducing of concept and theory of fluorophor into our course can stimulate the students' interests in learning organic chemistry and understand the fundamental knowledge in organic synthetic chemistry. Meanwhile, an opportunity to combine theory with practice would also be given by delicate instrument manipulation, and the student would have the experimental skills and experience developed in our course.

The preparation of cyclohexene is a classic organic chemical experiment. In this experiment, anhydrous calcium chloride is used to remove the tiny bit of cyclohexanol in organic phase. However, there is no literature to prove that calcium chloride has good abilities of removing cyclohexanol, and experimental studies are required. This paper also compared the performance of calcium chloride to adsorb ethanol and isoamyl alcohol, in order to analyze its abilities of removing alcohols. The results show that calcium chloride can remove ethanol very well. While the ability of removing cyclohexanol and isoamyl alcohol is very weak and the adsorption takes a long time. This paper can be used as supplementary materials to the teaching experiment and can provide guidance for the experiment researchers.

A BODIPY based fluorescent probe 1 for anions containing OH group as recognition sites has been developed. The binding and sensing abilities of probe 1 toward various anions have been studied by absorption, emission and ¹H NMR titrations spectroscopy. Probe 1 showed selective response toward fluoride anions through hydrogen bonding interaction. Interestingly, 1-F^- ensemble showed OFF-ON fluorescence response toward hydrogen sulfate anions through reversible hydrogen bonding interaction, and thus made 1-F^- ensemble a novel probe for the sensing of hydrogen sulfate anions. Moreover, the probe could function as an efficient fluorescent switch modulated by fluoride and hydrogen sulfate anions. This experiment can enable students to further understand the knowledge of fluorescent molecular switch and cultivate interests in scientific research.

The synthesis of single-site metal catalysts and their applications in fuel cells are comprehensive chemical experiment for scientific research. The metal atoms are highly dispersed in the nitrogen-doped graphene framework (denoted as M-NG) by simply heat-treating the mixture of metal salt and graphene oxide in ammonia gas. The catalytic materials were characterized by XRD, TEM, SEM, and HAADF-STEM. The activity of the catalyst in the oxygen reduction reaction was measured using KOH solution as the electrolyte to explore the application potential of the single-site metal catalyst in the fuel cell. Through this experiment teaching, the cutting-edge academic research results and practical skills are incorporated into experiments to improve students' comprehensive experimental operation skills and cultivate their interests in the exploration of scientific research.

Through the quantitative analysis and content analysis of pre-service chemistry teachers' education research literature in the last twelve years in mainland China, the study found that seldom researchers pay attention to pre-service chemistry teachers' education research and the research is lack of systematicness. Learning research is more, while educational technology research is less. The empirical study is nearly half, but many are still empirical conclusions, where quantitative research is more than qualitative research, but the data processing method is too single.

The concept of "Internet+" makes the popular science education form quite diversified. In this paper, the necessity of popularizing chemistry education in higher vocational school; the status of popular science education under the background of "Internet+"; the practice of popularizing chemistry education by means of making animation videos, developing games, establishing WeChat group are introduced, and the results in practice are also summarized.

This paper explores effective methods to solve the problems of low platform condition, less hardware configuration, relatively weak foundation of students and difficulty in teaching for agricultural and forest specialty in instrumental analysis experiments course. Specifically, regulations of the reform of comprehensive experiment teaching include classification of the experiment teaching contents, designing modular experiment teaching classes which according to project grading, dividing teaching team into theoretical teaching and practicing, establishing the teaching resources, and combination of various assessment methods. And the effect of teaching of instrumental analysis experiments was significantly improved through the practice of teaching reform.

This paper expounds the connection between the high level academic graduate education and the undergraduate scientific research experience. Taking the chemistry major as an example, this paper makes a detailed analysis of the connection mode of the academic master's cultivating and the innovative scientific research practice of the undergraduate, and points out that the connection of the two is helpful to the master's research with high scientific research level and good innovative ability.

With the rapid development of mobile internet technology, the traditional experiment teaching mode could not fully meet the needs of current experiment teaching. Based on the advantages of the WeChat public platform, "Hushi materials chemistry experiment", which was a WeChat assisted experiment teaching platform, was built. The primary coverage of the WeChat platform was introduced. Taking the teaching of "comprehensive experiment of materials chemistry" as an example, the concrete practice process was introduced in detail. The WeChat public platform promoted the publication of the experiment teaching information, assisted the experimental classroom teaching, and strengthened the discussion after the experiment, which helped to improve the enthusiasm of the students to participate in the experiment.

According to the functions and characteristics of mobile teaching, the new classroom teaching of inorganic and analytical chemistry was designed, and a mobile learning platform was built by mobile terminals and the Internet. The teacher uploads teaching materials before class for students to preview online. The activity of classroom teaching and the interactive effect were enhanced by using "sign-in", "rush to answer", "selecting people", and "live broadcast" of controls and online uploading pictures. After class, students log on to the mobile learning platform for review and self-test. Practice showed that the mobile teaching was conducive to cultivating students' ability to actively learn and solve complex problems, and reflected the student-centered educational philosophy.