Nanoscale sharpening tips of vapor-liquid-solid grown silicon microwire arrays

被引：18

作者：

Goryu, Akihiro ^{[1
]}

Ikedo, Akihito ^{[1
]}

Ishida, Makoto ^{[1
]}

Kawano, Takeshi ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Aichi, Japan

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 12期

关键词：

NANOWIRE TRANSISTOR ARRAYS; CARBON NANOTUBES;

D O I：

10.1088/0957-4484/21/12/125302

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We developed out-of-plane, high aspect ratio, nanoscale tip silicon microwire arrays for application to penetrating, multisite, nanoscale biological sensors. Silicon microwire arrays selectively grown by gold-catalyzed vapor-liquid-solid growth of silicon can be formed to create sharpened nanotips with a tip diameter of less than 100 nm by utilizing batch-processed silicon chemical etching for only 1-3 min. The tip angles achieved ranged from 11 degrees to 38 degrees. The nanotip silicon microwires can perform gelatin penetration without wire breakdown, indicating their potential penetrating capability for measurements inside biological tissues.

引用

页数：5

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