3 years ago

Far-UV-Excited Luminescence of Nitrogen-Vacancy Centers: Evidence for Diamonds in Space

Far-UV-Excited Luminescence of Nitrogen-Vacancy Centers: Evidence for Diamonds in Space
Yu-Chain Peng, Bing-Ming Cheng, Sheng-Lung Chou, Hsiao-Chi Lu, Huan-Cheng Chang, Jen-Iu Lo
The nitrogen-vacancy (NV) centers in diamond are among the most thoroughly investigated defects in solid-state matter; however, our understanding of their properties upon far-UV excitation of the host matrix is limited. This knowledge is crucial for the identification of NV as the carrier of extended red emission (ERE) bands detected in a wide range of astrophysical environments. Herein, we report a study on the photoluminescence spectra of NV-containing nanodiamonds excited with synchrotron radiation over the wavelength range of 125–350 nm. We observed, for the first time, an emission at 520–850 nm with a quantum yield greater than 20 %. Our results share multiple similarities with the ERE phenomena, suggesting that nanodiamonds are a common component of dust in space. Luces in the sky, with diamonds: The fluorescence emission of nitrogen-vacancy centers at 520–850 nm upon far-UV excitation and with a quantum yield greater than 20 % is demonstrated. Sharing multiple similarities with the extended red emission observed in the interstellar medium, these results provide strong evidence for nanodiamonds as an important component of cosmic dust.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201707389

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.