two-dimensionalcrystal fiberIt is a new type of nanomaterial with atomic thickness and nanometer or submicron lateral size.,The appearance of two-dimensional crystal fibers is of great significance to the study of materials. Theoretically, the single-layer atom is an important model for physicists to study the structure and properties of matter, and the emergence of two-dimensional crystals makes this model move from theory to reality, and many theoretical deductions have also been verified, breaking the traditional theory that two-dimensional crystal fibers cannot exist in reality, which has caused great repercussions in the field of physics. In terms of application value, this atomic thickness and two-dimensional structure make it better than the corresponding bulk material. For example, two-dimensional graphene has quantum Hall effect, excellent optical properties and high specific surface area, which graphite does not have. It also exhibits superior properties such as ultra-high room temperature carrier mobility and high thermal conductivity.,So two-dimensionalcrystal fiberThe emergence of energy materials, optoelectronic devices, catalysts and biological materials and other practical scientific researchers have been widely concerned. However, in practical applications, because two-dimensional crystal fibers are indistinguishable nanomaterials, it is difficult to construct devices directly, and they often need to be assembled into macroscopic materials.

Fiber is an excellent two-dimensionalcrystal fiberBase macro material:

1,Compared with other two-dimensional crystal-based macroscopic materials, the fiber has a larger surface area and a smaller cross-sectional size, which makes it easier for substances to enter the two-dimensional crystal-based fiber and interact with the internal two-dimensional crystals, which has a great impact on its application in the fields of catalysis, adsorption and electrodes.

2,Two-dimensional crystal-based fibers are flexible and processable, which are highly matched with the important potential applications of two-dimensional crystals, and are the development direction of electronic devices. Therefore, the preparation and application of two-dimensional crystal-based fibers has become an important direction for the development of two-dimensional crystals.

The value of two-dimensional crystal fibers depends largely on their application potential,Fiber is an important form of two-dimensional crystal application, and the research of two-dimensional crystal fiber is still in its infancy. At present, the preparation of two-dimensional crystal fibers faces two major challenges: how to select the appropriate two-dimensional crystal for spinning? How to determine the appropriate spin parameters of the two-dimensional crystal? To achieve the development of other two-dimensional crystal-based fibers, we should focus on the following aspects:

1,The unique properties of the existing two-dimensional crystals are studied more deeply and systematically, the way to improve the stability of the two-dimensional crystal structure in the atmospheric environment is explored, the genome of the two-dimensional crystal is mapped, and the two-dimensional crystal and its dispersion required for large-scale preparation of macroscopic fibers are realized.

2,The establishment of a spinning theory system suitable for two-dimensional crystal dispersion is conducive to determining a series of parameters such as coagulation bath type, spinning conditions, concentration and coagulation bath concentration of two-dimensional crystal dispersion.

Although for many two-dimensionalcrystal fiberThere is still a long way to go to prepare fibers, but their development prospects are very broad. Two-dimensional crystal fibers have great potential in sensing, adsorption, catalysis, electronics and other fields..It is already embodied in wearable electronic devices,More importantly, once the two-dimensional crystal fiber and its fibrous transistor with semiconductor characteristics are successfully prepared, it will pave the way for the preparation of flexible chips with logic operation capabilities. It will lead the current smart wearable devices to be truly intelligent, with flexible wearable semiconductor chips as the core, which will completely change the human lifestyle.