Title :
Ten-fold improvement in the photoluminescence quantum efficiency of quantum-size-effect-tunable (1000-2000 nm) and solution-processed PbS nanocrystal films
Author :
Chang, Tung-Wah Frederick ; Maria, Ahmed ; Cyr, Paul W. ; Sukhovatkin, Vlad ; Levina, Larissa ; Sargent, Edward H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
PbS nanocrystals for infrared applications have previously shown to have very low photoluminescence quantum efficiency (∼ 1%) when solution-processed into the solid state. We show a ten-fold improvement through the use of polymer-nanocrystal composites.
Keywords :
IV-VI semiconductors; lead compounds; nanostructured materials; optical films; photoluminescence; semiconductor quantum dots; 1000 to 2000 nm; PbS; PbS nanocrystals; infrared applications; photoluminescence; polymer-nanocrystal composites; quantum efficiency; quantum-size-effect-tuning; solution-processing; Atom optics; Atomic beams; Nanocrystals; Optical films; Optical polymers; Photoluminescence; Quantum computing; Semiconductivity; Semiconductor films; Semiconductor materials;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.201866
