Photoluminescence characterization of high-purity synthesized diamond

被引：8

作者：

Horiuchi, K ^{[1
]}

Nakamura, K ^{[1
]}

Yamashita, S ^{[1
]}

Kuwata-Gonokami, M ^{[1
]}

机构：

[1] UNIV TOKYO, FAC ENGN, DEPT APPL PHYS, BUNKYO KU, TOKYO 113, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1997年 / 36卷 / 11B期

关键词：

diamond; high-temperature high-pressure synthesis; photoluminescence; free exciton; phosphorescence;

D O I：

10.1143/JJAP.36.L1505

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence (PL) properties of high-purity synthesized diamond are studied using the 5th-harmonic of a Nd:YAG laser. Free-exciton related emissions are dominant even at room temperature, which confirms high crystal perfection of the sample. The intensity of the FE-related peaks decreases at temperatures below 150 K, and existence of shallow trap centers is suggested. Also there exists a long-lived broad band in the visible region. These features cannot be observed by cathodoluminescence, and PL characterization is proved to be effective for characterization of such high-quality diamond.

引用

页码：L1505 / L1507

页数：3

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