Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Mar 15;10(3):528. doi: 10.3390/nano10030528

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

(a) Optical microscopy image and corresponding (b) $μ$ -PL mapping excited at 532 nm of CDs deposited on contiguous regions of undoped graphene (CDs/Gr) and ${SiO}_{2}$ (CDs/ ${SiO}_{2}$ ). The intensity of CD emission (CD PL) is reported in the color-bar.