Science and Technology Daily, Taizhou, January 17 (Reporter Zhang Ye) Since graphene won the Nobel Prize in Physics in 2010, scientists and the industry have begun to pursue graphene feverishly. While chasing graphene, a large number of graphene-like two-dimensional materials have also been discovered one after another. How to accurately define them is related to the development of related materials industries. The reporter learned from Taizhou Juna New Energy Co., Ltd. on the 17th that the company led the drafting of my country's first graphene national standard GB/T30544.13-2018: "Nanotechnology Terminology Part 13: Graphene and Related Two-dimensional Materials" Officially release. This standard is also the first national standard in the field of two-dimensional materials.

The graphene-like two-dimensional material family involves a wide range of disciplines, a wide range, and a variety of types. It has always shown an innovative trend of multi-point flowering, new phenomena, and new applications. Two-dimensional materials are one of the most cutting-edge scientific research application fields, covering printed electronics, flexible electronics, supercapacitors, solar cells, quantum dots, sensors, semiconductor manufacturing, etc. The foundation for disruptive innovation in the field.

According to the definition of the national standard, it consists of one or several layers, in which the atoms in each layer are closely bonded to the adjacent atoms in the layer, and one dimension (that is, its thickness) is at the nanometer or smaller scale, and the remaining two Materials whose two dimensions are usually on a larger scale are called two-dimensional materials.

What are the excellent properties of two-dimensional materials? Since the surface atoms of monolayer 2D materials are almost completely exposed, atom utilization is greatly improved compared to bulk materials. Through thickness control and element doping, the band structure and electrical properties can be more easily regulated. Therefore, two-dimensional materials are more conducive to chemical modification and electron transfer. At the same time, their flexibility and transparency are high, and they have attractive prospects in the fields of wearable smart devices and flexible energy storage devices.

my country's first national standard for graphene and two-dimensional materials was mainly drafted by Taizhou Juna New Energy Co., Ltd., Southeast University and other units. The former was established in 2010 and is one of the earliest companies engaged in graphene research, testing, application and standardization in China. one.

Source: Science and Technology Daily