Refractive Index Regulation of Gold Nanocrystal Superlattices by Varying the Nanocrystal Size

被引：2

作者：

Sato, Seiichi ^{[1
]}

Ito, Takeyasu ^{[1
]}

Kimura, Keisaku ^{[1
]}

机构：

[1] Univ Hyogo, Grad Sch Mat Sci, Kamigori, Hyogo 6781297, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 06期

关键词：

PARTICLE CRYSTALS; NANOPARTICLES;

D O I：

10.1143/JJAP.49.06GJ05

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Micrometer-sized three-dimensional superlattices with different lattice constants were fabricated by assembling Au nanocrystals modified with mercaptosuccinic acid in aqueous suspensions. The refractive index of the superlattices was varied between 2.3 and 3.3 by altering the size of the component nanocrystals between 3.11 and 4.68 nm. As a result, the metal content of the superlattices varied between 23 and 36%. The correlation between nanocrystal size and the optical permittivity estimated from the refractive index was explained using the Maxwell-Garnett theory. (C) 2010 The Japan Society of Applied Physics

引用

页码：06GJ051 / 06GJ053

页数：3

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