New nanosheets improve LCD and LED screen performance

- Nov 13, 2018-

According to foreign media reports, researchers from the Department of Physics and Analytical Chemistry at the University of Spain's Jaime I (UJI) participated in a design project for semiconductor nanosheets, which have a wider range of colors and can improve the performance of LCD and LED screens. .


Juan Ignacio Climente, professor of physical chemistry at UJI, explains that the semiconductor structure of optics has so far provided strong and pure purple and green, but the other color properties offered are not good enough. This innovative study also extends the best performance of yellow, orange and red light. At the same time, significant progress has been made in the development of optical semiconductor materials.


Specifically, Climente said: “We conducted mechanical quantitative calculations and the results showed that the new color emitted was produced by our partners with larger thicknesses of nanosheets, which also provided us with these materials. New insights into the unique optical properties. The new synthesis method extends the traditional thickness (3.5-5.5 layers of atoms) to 8.5 layers."


Second generation quantum dot display


Semiconductor nanosheets are designed for use in second-generation quantum dot displays that provide a purer and deeper color than current LCD or LED screen technologies. In addition, these nanotechnology materials can also be used in laser devices and optical sensors.


The Quantum Chemistry Group at the UJI School of Excellence in Technology and Experimental Sciences specializes in theoretical research on nanocrystals. Researchers from the group used quantum mechanics tools to model these systems to understand and predict their physical properties. Recently, the team demonstrated that new semiconductor nanosheets synthesized in the lab can improve the luminosity of LEDs, lasers, and LCD screens in computers or televisions. This nanosheet can be minimized compared to existing semiconductor materials. Energy loss.