Role of High Nitrogen‐Vacancy Concentration on the Photoluminescence and Raman Spectra of Diamond

Autor:	Mona Jani, Mariusz Mrózek, Anna M. Nowakowska, Patrycja Leszczenko, Wojciech Gawlik, Adam M. Wojciechowski
Rok vydání:	2022
Předmět:	Atomic Physics (physics.atom-ph) Materials Chemistry FOS: Physical sciences Surfaces and Interfaces Electrical and Electronic Engineering Condensed Matter Physics Physics - Atomic Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials
Zdroj:	physica status solidi (a). 220:2200299
ISSN:	1862-6319 1862-6300
DOI:	10.1002/pssa.202200299
Popis:	We present a photoluminescence (PL) and Raman spectroscopy study of various diamond samples that have high concentrations of nitrogen-vacancy (NV) color centers up to multiple parts per million (ppm). With green red, and near infrared (NIR) light excitation, we demonstrate that while for samples with a low density of NV centers the signals are primarily dominated by Raman scattering from the diamond lattice, for higher density of NVs we observe a combination of Raman scattering from the diamond lattice and fluorescence from the NV centers, while for the highest NV densities the Raman signals from diamond are completely overwhelmed by the intense NVs fluorescence. However, under NIR excitation, Raman diamond signatures can be observed for some diamonds. These observations reveal different roles of two mechanisms of light emission and contradict the naive belief that Raman scattering enables complete characterisation of a diamond crystalline sample.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2caa5bb94f03d9f21e5c1c6008bd7575 https://doi.org/10.1002/pssa.202200299 Zobrazit plný text záznamu Plný text