Luminescence from processible quantum dot-polymer light emitters 1100-1600 nm: Tailoring spectral width and shape

被引：47

作者：

Bakueva, L ^{[1
]}

Konstantatos, G ^{[1
]}

Levina, L ^{[1
]}

Musikhin, S ^{[1
]}

Sargent, EH ^{[1
]}

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 18期

关键词：

D O I：

10.1063/1.1737072

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electroluminescent devices combining two families of PbS colloidal quantum dots to achieve spectrally tailored two-color emission are reported. Depending on device structure selected-the use of two separated layers versus a mixture of nanocrystals-the structures demonstrated light emission either in two infrared frequency peaks corresponding to the spectral region 1.1-1.6 mum or in a wide band spanning this same spectral region. Separated-layer devices exhibit wide tunability in the relative intensity of the two peaks by varying excitation conditions. Replacing oleate with octodecylamine ligands increases the internal electroluminescence efficiency to 3.1%. (C) 2004 American Institute of Physics.

引用

页码：3459 / 3461

页数：3

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