Year: 2025
Type: article
Abstract: The decay dynamics of the $$\alpha$$ α -group ( $$^2$$ 2 D $$\rightarrow ^4$$ → 4 S transition) of N atoms stabilized in the collection of $$\hbox {N}_2$$ N 2 –Ne nanoclusters were studied at a temperature of 1.3 K. The variation of the $$\hbox {N}_2$$ N 2 /Ne ratio in nanoclusters results in substantial changes in the luminescence spectra of the $$\alpha$$ α -group and in the characteristic decay times for the components of these spectra. In all obtained $$\alpha$$ α -group spectra, the narrow component at $$\lambda$$ λ = 519.9 nm was observed. The spectroscopic results provide information about the structure of the nitrogen–neon nanoclusters. At elevated temperatures ( $$\approx$$ ≈ 15–36 K), enhanced oxygen $$\beta$$ β -group luminescence is observed in $$\hbox {N}_2$$ N 2 –Ne nanoclusters, with a smaller intensity enhancement than those observed within pure $$\hbox {N}_2$$ N 2 and mixed $$\hbox {N}_2$$ N 2 –Kr nanoclusters. These results confirm the energy transfer mechanism, in which excited nitrogen molecules formed on the nanocluster surface transfer energy to the stabilized oxygen atoms through the chain of $$\hbox {N}_2$$ N 2 molecules in a solid matrix.
Institution: Texas A&M University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,390
OpenAlex ID: W4410640885