Studies on Neon irradiated amorphous carbon using X-ray Diffraction technique

TL;DR

This study investigates how swift heavy ion (Ne6+) irradiation affects the structural properties of amorphous carbon prepared by different methods, revealing increased disorder and amorphous phase fraction with higher irradiation doses.

Contribution

It provides detailed X-ray diffraction analysis of structural changes in amorphous carbon due to Ne6+ irradiation, highlighting the increase in disorder and amorphous phase fraction.

Findings

Amorphous phase fraction increases with irradiation dose.

Structural parameters like Lc, La, and d002 are largely unaffected by irradiation.

Disorder in the samples increases with higher irradiation doses.

Abstract

Two sets of amorphous carbon materials prepared at different routes are irradiated with swift (145 MeV) heavy ion (Ne6+). The structural parameters like the size of ordered grains along c and a axis i.e. Lc & La, the average spacing of the crystallographic planes (002) i.e. d002 and the fraction of the amorphous phase of the unirradiated and the irradiated samples are estimated by X-ray diffraction technique. The fraction of the amorphous phase is generally found to increase with the irradiation dose for both sets of the samples. The estimated and values are found to be almost unaffected by irradiation. The estimated values of corroborate with the increase of disorder in both sets of the samples with the increasing dose of irradiation. Keywords: X-ray Diffraction, Amorphous Carbon, Irradiation