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Chromatic Change in Copper Oxide Layers Irradiated with Low Energy Ions

机译:用低能量离子照射氧化铜层的彩色变化

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The color of a thin copper oxide layer formed on a copper plate was transformed from reddish-brown into dark 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+ and 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 (5 × 1015 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.
机译:通过用5keV Ar +离子的照射从Reddish-棕色的致褐色紫色转化为深蓝色紫色的薄铜氧化物层的颜色通过低至1×1015Ar + cm 2的流量。 在未照射的氧化铜氧化铜层中,包括Cu 2 +和Cu +和/或Cu0的铜价状态,如在光电谱中在抖动卫星线的存在所示。 虽然对于照射的一个,卫星线的强度降低,表明照射导致Cu 2 +至Cu +和/或Cu0的减少。 此外,使用160(D,P)17O反应的核反应分析与0.85meV氘孔揭示辐照层中的显着损失(5×1015 o原子cm 2)。 因此,在本作过程中观察到的色变化源于照射诱导的氧化铜的还原。

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