HZNJ Nanocrystalline Technology Group was established in August 2009. It is a high-tech enterprise with quantum dot semiconductor new materials (also known as nanocrystalline) as the core technology. Its main business is the research, manufacturing and application technology and products of quantum dot new materials. The development of new quantum dot materials has made many achievements in the design, synthesis and surface modification of new quantum dot materials.
Since its establishment, the company has concentrated on the research and development of new quantum dot materials and the development of key common technologies, and has accumulated more than RMB 4 million in financing. In February 2015, the Basic Research Management Center of the Ministry of Science and Technology of the People's Republic of China announced the results of the selection of the top ten scientific advances in China in 2014. The solution method for the preparation of high-performance quantum dot light-emitting diodes (QLED) project jointly developed by HZNJ and Zhejiang University was successfully selected.
The company takes excellent talents as the cornerstone of its business, strives to build a high-level innovative team, and has an enterprise post-doctoral scientific research workstation. The company was founded by Professor Xiaogang Peng, who was selected as one of Thomson Reuters' top 100 chemists in the world in 2011. Professor Brus and Professor Yang Peidong, academicians of the American Academy of Sciences, served as strategic consultants for scientific and technological development.
Quantum Dot
Quantum dots, also known as nanocrystals, are nano-particles composed of II-VI or III-V elements. The particle size of quantum dots is generally between 1-10 nm. Because electrons and holes are quantum confined, the continuous band structure becomes a discrete energy level structure with molecular characteristics, which can emit fluorescence after being excited. Quantum dot materials have become one of the new materials that the industry continues to pay attention to, and are widely used in basic research and application development in the fields of light-emitting devices, solar cells, catalysis, biomarkers, and biomedicine.
The emission spectrum of quantum dots can be controlled by changing the size of the quantum dots. By changing the size of the quantum dot and its chemical composition, the emission spectrum can cover the entire visible light region.
Quantum dot material luminescence is divided into two types: photoluminescence and electroluminescence. Photoluminescence means that photons cause quantum dot materials to emit light, and electroluminescence means that electrons cause quantum dot materials to emit light. The electroluminescent QLED material can be directly used to manufacture display devices, making extremely thin and light display screens, which will be one of the important directions in the future display field.
Quantum dot display technology is based on HZNJ's years of research and development and accumulation. Its products include quantum dot light conversion devices (Q-LCD) and quantum dot light conversion films (QLCF). The product combines a new generation of nano-quantum dot materials and high-performance polymer materials, and uses remote excitation technology to convert blue light into bright green light and bright red light. It can be widely used in terminal products such as TVs, monitors and mobile phones, which can significantly improve Display color gamut, greatly improving the color effect of the display, the colors are more vivid and rich, close to the real world.