Efficient green emission from edge states in graphene perforated by nitrogen plasma treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00511105" target="_blank" >RIV/68378271:_____/19:00511105 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/19:00332680

Výsledek na webu

<a href="https://doi.org/10.1088/2053-1583/ab2ee9" target="_blank" >https://doi.org/10.1088/2053-1583/ab2ee9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2053-1583/ab2ee9" target="_blank" >10.1088/2053-1583/ab2ee9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficient green emission from edge states in graphene perforated by nitrogen plasma treatment

Popis výsledku v původním jazyce

Plasma functionalization of graphene is one of the facile ways to tune its doping level without the need for wet chemicals making graphene photoluminescent. Microscopic corrugations in the twodimensional structure of bilayer CVD graphene having a quasi-free-suspended top layer, such as graphene ripples, nanodomes, and bubbles, may significantly enhance local reactivity leading to etching effects on exposure to plasma. Here, we discovered that bilayer CVD graphene treated with nitrogen plasma exhibits efficient UV-green-red emission, where the excitation at 250 nm leads to photoluminescence with the peaks at 390, 470, and 620 nm, respectively. By using Raman scattering and spectroscopic ellipsometry, we investigated doping effects induced by oxygen or nitrogen plasma on the optical properties of single- and bilayer CVD graphene.

Název v anglickém jazyce

Efficient green emission from edge states in graphene perforated by nitrogen plasma treatment

Popis výsledku anglicky

Plasma functionalization of graphene is one of the facile ways to tune its doping level without the need for wet chemicals making graphene photoluminescent. Microscopic corrugations in the twodimensional structure of bilayer CVD graphene having a quasi-free-suspended top layer, such as graphene ripples, nanodomes, and bubbles, may significantly enhance local reactivity leading to etching effects on exposure to plasma. Here, we discovered that bilayer CVD graphene treated with nitrogen plasma exhibits efficient UV-green-red emission, where the excitation at 250 nm leads to photoluminescence with the peaks at 390, 470, and 620 nm, respectively. By using Raman scattering and spectroscopic ellipsometry, we investigated doping effects induced by oxygen or nitrogen plasma on the optical properties of single- and bilayer CVD graphene.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

2D Materials

ISSN

2053-1583

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000477588600003

EID výsledku v databázi Scopus

2-s2.0-85071082365