Composition, structure, and luminescent properties of SiOxNy(Si) composite layers containing Si nanocrystals
V. G. Baru, I. N. Dyuzhikov, V. I. Pokalyakin, O. F. Shevchenko, E. A. Skryleva, O. M. Zhigalina
Abstract
A relationship between the chemical composition, structure and luminescent properties of light-emitting SiOxNy(Si) composite layers with Si nanocrystals is demonstrated. Photoluminescence (PL) with a maximum of intensity at 500-600 nm is observed in a narrow region of chemical compositions with relatively small Si excess (about 10 at. %). Composite layers structure is studied by means of HRTEM. Appearance of nanocrystals due to annealing is accompanied by substantial growth (30-40 times) of PL intensity but do not change PL spectra shape. Chemical composition of structural luminescent-active complexes with excess Si atomes is determined by XPS technique.
Create a lesson
Related papers
Temperature dependence of the charge density from first principles: application to the (222) forbidden reflection in silicon
Jean Paul Nery, Raveena Gupta, Olle Hellman et al.
Coupled anisotropic weak topological states and Floquet mixed-parity altermagnetism in two-dimensional Su-Schrieffer-Heeger models
Kunyuan Feng, Xibin Liu, Chenchen Liu et al.
Grain Boundary Phase Transitions Enable Diffusionless Climb of Disconnections
Md Sharier Nazim, Giacomo Po, Nikhil Chandra Admal
3D Cloud Component Analysis of Atomic Structures
Pai Li
Benchmarking of Fast and Interpretable UF Machine Learning Potentials
Pawan Prakash, Sam Dong, Richard G. Hennig
Grain-Boundary Premelting in High-Entropy Transition Metal Carbides
Marium M. Mou, Caleb Schenck, Samuel E. Daigle et al.