Spectroscopy, imaging and switching behaviour of individual InP/GaInP quantum dots

被引：11

作者：

Castrillo, P

Hessman, D

Pistol, ME

Prieto, JA

Pryor, C

Samuelson, L

机构：

[1] Univ Lund, Solid State Phys Nanometer Struct Consortium, S-22100 Lund, Sweden

[2] Univ Valladolid, Dept Elect, E-48011 Valladolid, Spain

[3] CSIC, Inst Microelect Madrid, E-28760 Madrid, Spain

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1997年 / 36卷 / 6B期

关键词：

random telegraph noise; quantum dots; photoluminescence; semiconductor; single quantum dot emission;

D O I：

10.1143/JJAP.36.4188

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have measured the photoluminescence of individual quantum dots grown by the Stranski-Krastanow growth mode. Studies of many individual quantum dots reveal that about one quantum dot in a thousand switches between two emission intensity levels on a time-scale of seconds. The switching is temperature and excitation power activated. For each set of experimental conditions, the statistics is consistent with random telegraph noise. By strong illumination it is possible to turn the switching off, after which the quantum dot emits continuously.

引用

页码：4188 / 4190

页数：3

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