Enhanced luminescence from catalyst-free grown InP nanowires

被引：36

作者：

Mattila, M.

Hakkarainen, T.

Lipsanen, H.

Jiang, H.

Kauppinen, E. I.

机构：

[1] Aalto Univ, FIN-02015 Helsinki, Finland

[2] VTT, Tech Res Ctr Finland, FIN-02044 Espoo, Finland

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 03期

关键词：

D O I：

10.1063/1.2431711

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The surface effects in the optical properties of catalyst-free grown InP nanowires are investigated. Both as-grown nanowires and nanowires treated with hydrofluoric acid are studied using low- and room-temperature continuous-wave and time-resolved photoluminescence measurements and transmission electron microscopy. It is shown that the room-temperature photoluminescence intensity is increased by two orders of magnitude after the surface treatment, and that there is also a significant increase in the double-exponential photoluminescence decay time. (c) 2007 American Institute of Physics.

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