Hefei Institute of organic one-dimensional single crystal nano-optical properties of research progress

Hefei Institute of organic one-dimensional single crystal nano-optical properties of research progress

(a) IV (current-voltage) curves of single PTCDA nanorods measured by SEM micrographs of micro devices fabricated using the focused ion beam deposition technique (b) both-ends method. (a) The illustration in the figure is an enlarged SEM photograph of the device, and (b) the illustration in the figure is an optical micrograph of the device.

The Tianliang Group of the Strong Magnetic Field Science Center of the Hefei Research Institute of Materials Science, Chinese Academy of Sciences has made new progress in the study of the optical and electrical properties of organic one-dimensional nanocrystals. Nano Research publishes the research results online with the topic Photophysical and electrical properties of organic waveguide nanorods of perylene-3,4,9,10-tetracarboxylic dianhydride.

The intermolecular forces of organic materials are mainly hydrogen bonds, van der Waals forces, π-π conjugate interactions and other weak interaction forces, which make organic nanomaterials available in the preparation of solar cells, light emitting diodes, field effect transistors and other devices. Inorganic nanomaterials are incomparable advantages. Although organic nanomaterials have broad application prospects in the field of photovoltaic device fabrication, how to improve the absorption efficiency and luminous intensity of organic nanomaterials and the electrical properties of organic nanomaterials still have certain challenges.

PTCDA molecules are usually used as model molecules to study the optical and electrical properties of organic molecules with planar, π-π-conjugated structures. Currently, PTCDA molecules have been used in the preparation of light-emitting diodes. Han Yuyan, a member of the research team, used organic molecular beam deposition (OMBD) to prepare a thin film of phthalic tetracarbonate dianhydride (PTCDA) and a single crystal nanorod array on a porous alumina substrate, and photophysical properties of the thin film and nanorod array. Characteristics and electrical properties of single nanorods were studied. The research results of the photophysical properties show that the optical absorption and photoluminescence intensity of the arrayed PTCDA nanorods are greatly improved compared with the films. The electrical properties of the nanorods show that they are 1.58×107 V·. With the electric field strength of m-1 and current density of 5.17×10 6 A·m −2 , the electrical properties of nanorods can still maintain good repeatability. The above research results will provide experimental basis for the application of organic nanomaterials in the field of organic optical and electrical device preparation.

The research work was supported by the National Natural Science Foundation of China and Hefei University Science Center.

Euro fence is also called dutch mesh or wave welded mesh or holland Wire mesh. It can be made of 

black mild steel wire or galvanized wire, quality welded on each joint point, PVC PE or PP powder coated 

the surface by sulfide treatment, with good adhesion, anticorrosion, flittering luster, etc. The surface 

treatment also can be electro galvanized, hot dipped galvanized.normally used for highway, boundary, railway protection, etc. 

Euro Fence

Euro Fence,3Ft Fence Panels ,6X4 Fence Panels ,European Fence Panels

HeBei Fortune Trade Co.,Ltd. , https://www.gardfence.com