Optical and electrical properties of hydrogenated yttrium nanoparticles

被引：16

作者：

Bour, G ^{[1
]}

Reinholdt, A ^{[1
]}

Stepanov, A ^{[1
]}

Keutgen, C ^{[1
]}

Kreibig, U ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Phys Inst 1 1A, D-52056 Aachen, Germany

来源：

EUROPEAN PHYSICAL JOURNAL D | 2001年 / 16卷 / 1-3期

关键词：

D O I：

10.1007/s100530170096

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We studied the effect of hydrogen in yttrium nanoparticles on a quartz substrate, using optical spectroscopy and electrical resistance measurements. Pulsed laser deposition is used to obtain the Y clusters in an UHV environment. We show, that these clusters are highly sensitive to monoatomic Hi produced from ambient hydrogen gas pressures, ranging fron 10(-5) to 50 mbar with our experimental arrangement. The changes of optical and electrical properties due to the chemical reaction within the particles are sufficient to consider this material as a possible sensor for low concentrations of hydrogen.

引用

页码：219 / 223

页数：5

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