Nanogap quantum dot photodetectors with high sensitivity and bandwidth

被引：29

作者：

Hegg, Michael C. ^{[1
]}

Horning, Matthew P. ^{[1
]}

Baehr-Jones, Tom ^{[1
]}

Hochberg, Michael ^{[1
]}

Lin, Lih Y. ^{[1
]}

机构：

[1] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 10期

基金：

美国国家科学基金会;

关键词：

WAVE-GUIDES;

D O I：

10.1063/1.3356224

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report high-performance nanoscale photodetectors utilizing annealed nanocrystal quantum dots (QDs) within a nanoscale metal electrode gap. By optimizing the nanogap size and fabrication process, the device demonstrates a significantly better sensitivity (noise equivalent power = 7.76 x 10(-14) W/Hz(1/2)) and bandwidth (>= 125 kHz) than previously reported nanoscale photodetectors. Furthermore, by utilizing a lateral photoconduction structure and a self-assembled layer of QDs, the detector fabrication is highly compatible with many substrates and device architectures. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3356224]

引用

页数：3

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