Structural and compositional modification of graphene oxide by means of medium and heavy ion implantation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00520686" target="_blank" >RIV/61389005:_____/19:00520686 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/19:43918089 RIV/44555601:13440/19:43894603

Result on the web

<a href="https://doi.org/10.1016/j.nimb.2019.03.022" target="_blank" >https://doi.org/10.1016/j.nimb.2019.03.022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nimb.2019.03.022" target="_blank" >10.1016/j.nimb.2019.03.022</a>

Result language

angličtina

Original language name

Structural and compositional modification of graphene oxide by means of medium and heavy ion implantation

Original language description

The ion irradiation fluences of 5.0 x 10(14) cm(-2), 5.0 x 10(15) cm(-2) and 5.0 x 10(16) cm(-2) were used. Upon irradiation, the modified GO foils were characterised using nuclear analytical methods Rutherford Backscattering Spectrometry (RBS), Elastic Recoil Detection Analysis (ERDA) and various conventional analytical methods such as Raman spectroscopy, Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), X-ray Photoelectron Spectroscopy (XPS), and 2-point conductivity measurements. Oxygen species removal was evidenced as the increasing function of the ion implantation fluence and oxygen depth profiles exhibited complex behaviour connected to implanted ion specie. The deep oxygen depletion in the broad surface layer accompanied by Ga diffusion into the depth was observed in Ga irradiated GO compared to Au irradiated samples which exhibited a narrow oxygen depleted layer at GO surface. XPS evidenced strong increase of C=C bonds compared to C-O bonds on the irradiated GO surface with increasing ion fluence, which was comparable for both ion species. Raman spectroscopy shows the modification of main phonon modes identified in GO. The D peak slight decrease and broadening was observed for GO irradiated with ion fluence above 5 x 1015 cm(-2) and mainly for Au ion irradiation. FTIR analysis proved the oxygen containing functional group release with the increased ion fluence, mainly C-O group release after Au ion irradiation was observed. Simultaneously H-O stretching absorption peak is in FTIR spectrum reduced more significantly for Ga irradiated GO which is in accordance with RBS elemental analysis exhibiting the more pronounced hydrogen depletion. Electrical conductivity measurement shows the linear I-V characteristics for the GO irradiated using both ion species and all ion fluences, the surface layer exhibited conductive behaviour comparing to pristine GO non-linear I-V characteristics.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Nuclear Instruments & Methods in Physics Research Section B

ISSN

0168-583X

e-ISSN

—

Volume of the periodical

460

Issue of the periodical within the volume

12

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

201-208

UT code for WoS article

000504510900038

EID of the result in the Scopus database

2-s2.0-85063099323