1, Progress in Materials Science Summary: And Stiffness, compressibility related to mechanical metamaterials

           Figure 1 Factors Affecting Mechanical Metamaterials

Mechanical metamaterials are man-made structures that have a counterintuitive mechanical property that originates from the cell's geometry. Typical mechanical metamaterials are usually associated with four elastic constants, Young's modulus, shear modulus, bulk modulus and Poisson's ratio. Recently, the team of Professor Zhou Ji (Corresponding Author) at Tsinghua University reviewed the topological optimization of the underlying design principles and important advances in experimental manufacturing. In addition, a clear classification of mechanical metamaterials was established based on basic material mechanics. The integration of metamaterials and topology optimization into microstructures enables the development of novel synthetic materials. Therefore, the author predicts that mechanical metamaterials will create a new era of materials.

2, Advanced Materials Summary: Super-wetting students Research Progress and Challenges of Antifog Materials

Figure 2 Schematic of the preparation of AF and DSSC using one-step SiO2 gel coating

Antifogging (AF) structural materials found in nature have great potential to promote the development of new products and emerging technologies and promote the daily life of human beings and are widely used in display equipment, vehicles, agricultural greenhouses, foam packaging , Solar energy products and other fields. Recently, Niu Shichao (Corresponding Author) team from Jilin University summarized the research progress of biological super-wetting anti-fogging materials and the mechanism, preparation and application of ultra-moist biosensing AF materials. The article points out that the anti-fogging materials Moisture is determined by the combination of its surface geometry and surface chemistry, which includes the construction of an over-wet anti-fog material based on the design of the structure and the chemistry of the conditioning surface. Finally, the article also briefly discusses the challenges and developments encountered in this area direction.

3, Advanced Materials Summary: Renewable Energy Plasma-assisted synthesis of polar materials and surface modification

Figure 3 Plasma generation process and substrate surface substrate

Renewable energy technologies are considered a natural choice to reduce the use of fossil fuels in industry and in everyday life. Designing critical and complex materials is of great importance for implementing high-performance energy technologies. The efficient synthesis and surface modification of nanomaterials are very important for energy technologies. Therefore, there is a growing demand for the rational design of highly efficient electrocatalysts or electrode materials, which is also the key to scalable and practical electrochemical energy devices. Recently, Professor Wang Shuangyin (Corresponding Author) from Hunan University recently summarized the latest progress in synthesis and improvement of fuel cell, lithium-ion battery, lithium-sulfur battery and supercapacitor material by using plasma technology, as well as plasma-assisted synthesis, surface modification, Atom doping, defects applied to the general method of electrocatalyst and electrode materials. Different types of plasmas can have different effects on the material. The plasma can assist in the synthesis and modification of gas and liquid-derived precursors such as atoms, molecules, ions or radicals to obtain the desired material. Therefore, the plasma Undoubtedly an efficient tool that will extend to other areas.

4, Nature Reviews Materials Summary: For there Non-fullerene Receptors for Solar Cells

    Figure 4 organic solar cell program

5, Advanced Functional Materials Summary: Use Two-dimensional arrays of nanomaterials in electronics and optoelectronics

Figure 5 Graphene arrays and their associated SEM images