| 摘要 |
<p>There is provided an optical information recording medium that can be stably produced without formation of groove-like defects due to abnormal discharge in sputtering of an interlayer. An optical information recording medium according to the present invention has a substrate, and an optical reflection layer, an optical recording layer containing an organic dye, an interlayer, and a cover layer formed in this order on the substrate. The interlayer contains a sputtered Nb 2 O 5 -Al 2 O 3 -based composite oxide having an Nb 2 O 5 content of more than 50 mol% and less than 60 mol%. Thus, in the formation of the interlayer, a scratch is hardly formed on an interlayer surface due to abnormal discharge between a target and the interlayer. Therefore, the optical information recording medium can be stably produced without causing an appearance failure due to the scratch on the interlayer surface.</p> |
