Telecom-wavelength electroluminescence from processible quantum dot nanocrystals

Author

Sargent, Edward H.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

fYear

2003

fDate

10-12 Dec. 2003

Firstpage

36

Lastpage

37

Abstract

We review light production from quantum dot nanocrystals embedded in a semiconducting polymer. Integrable optoelectronics is facilitated in this processible material system - one which may conveniently be combined with silicon electronics, passive optics, and RF platforms. Synthetic conditions determine nanocrystal diameter and thereby tune, through the quantum size effect, the spectrum of optical emissions from the quantum dots. We show that it is possible to span across and beyond the 1.3-1.6 μm spectrum of optical communications. Nonradiative recombination from the nanocrystals´ surface is addressed by choosing stabilizing, passivating organic ligands which nevertheless permit energy transfer from polymer to nanocrystals.

Keywords

IV-VI semiconductors; electroluminescence; integrated optoelectronics; lead compounds; light emitting devices; nanocomposites; optical communication; organic semiconductors; passivation; photoluminescence; polymer films; semiconductor quantum dots; semiconductor thin films; size effect; vacuum deposited coatings; wide band gap semiconductors; 1.3 to 1.6 micron; PbS; RF platforms; energy transfer; integrable optoelectronics; light production; nanocrystals surface; nonradiative recombination; optical communications; optical communications spectrum; optical emissions; passivating organic ligands; passive optics; quantum dot nanocrystals; quantum size effect; semiconducting polymer; silicon electronics; telecom wavelength electroluminescence; Electroluminescence; Nanocrystals; Optical materials; Optical polymers; Production; Quantum dots; Semiconductivity; Semiconductor materials; Stimulated emission; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Device Research Symposium, 2003 International

Print_ISBN

0-7803-8139-4

Type

conf

DOI

10.1109/ISDRS.2003.1271983

Filename

1271983