Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Chromatic Change in Copper Oxide Layers Irradiated with Low Energy Ions

Version 1 : Received: 2 February 2021 / Approved: 3 February 2021 / Online: 3 February 2021 (10:38:45 CET)

A peer-reviewed article of this Preprint also exists.

Kobayashi, T.; Nishiyama, F.; Takahiro, K. Chromatic Change in Copper Oxide Layers Irradiated with Low Energy Ions. Quantum Beam Sci. 2021, 5, 7. Kobayashi, T.; Nishiyama, F.; Takahiro, K. Chromatic Change in Copper Oxide Layers Irradiated with Low Energy Ions. Quantum Beam Sci. 2021, 5, 7.

Journal reference: Quantum Beam Sci. 2021, 5, 7
DOI: 10.3390/qubs5010007

Abstract

The color of a thin copper oxide layer formed on a copper plate was transformed from reddish-brown into blue-purple by irradiation with 5 keV Ar+ ions to a fluence as low as 1 1015 Ar+ cm–2. In the unirradiated copper oxide layer, the copper valence state of Cu2+ as well as Cu+ and/or Cu0 was included as indicated by the presence of a shake-up satellite line in a photoemission spectrum. While for the irradiated one, the satellite line decreased in intensity, indicating that irradiation resulted in the reduction from Cu2+ to Cu+ and/or Cu0. Furthermore, nuclear reaction analysis using a 16O(d, p)17O reaction with 0.85 MeV deuterons revealed a significant loss of oxygen (51015 O atoms cm–2) in the irradiated layer. Thus, the chromatic change observed in the present work originated in the irradiation-induced reduction of a copper oxide.

Subject Areas

ion beam; copper oxide; chromatic change; photoemission spectrum; beam viewer

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.