Quantum dot nanocolumn photodetectors for light detection in the infrared

被引：14

作者：

Boeberl, M. ^{[1
]}

Kovalenko, M. V. ^{[1
]}

Pillwein, G. ^{[1
]}

Brunthaler, G. ^{[1
]}

Heiss, W. ^{[1
]}

机构：

[1] Univ Linz, Inst Halbleiter & Festkorperphys, A-4040 Linz, Austria

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 26期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1063/1.2949084

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Colloidal quantum dots absorbing in the infrared are filled into nanoporous alumina membranes to form narrow columns with aspect ratios of 300:1. The columns define the charge carrier path vertical through the ordered pore structure of the membrane. Electrical transport and photocurrent of various quantum dot column photodetectors based on two different nanomaterials, namely, HgTe and PbS quantum dots, with different quantum dot sizes are investigated. Photocurrents up to long wavelengths of 3 mu m are demonstrated. (c) 2008 American Institute of Physics.

引用

页数：3

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