Pushing the band gap envelope: Mid-infrared emitting colloidal PbSe quantum dots

Journal of the American Chemical Society

Volumn 126, Issue 38, 2004, Pages 11752-11753

  Pietryga, Jeffrey M ^a   Schaller, Richard D ^a   Werder, Donald ^a   Stewart, Michael H ^a,b   Klimov, Victor I ^a   Hollingsworth, Jennifer A ^a  

^a LOS ALAMOS NATIONAL LABORATORY   (United States)

^b UNIVERSITY OF MICHIGAN   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

LEAD; NANOPARTICLE; SELENIUM;

ABSORPTION SPECTROSCOPY; ARTICLE; CRYSTAL; CRYSTAL STRUCTURE; ENERGY; HIGH TEMPERATURE; INFRARED RADIATION; LASER; LOW TEMPERATURE; PARTICLE SIZE; PHOTOLUMINESCENCE; QUANTUM YIELD; ROOM TEMPERATURE; SEMICONDUCTOR; SYNTHESIS; TECHNIQUE; TRANSMISSION ELECTRON MICROSCOPY;

EID: 4644368378     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja047659f     Document Type: Article

References (15)

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10. For 0.34 eV QDs: lead(II) acetate trihydrate (2.55 mmol) and oleic acid (7.9 mmol) in trioctylphosphine (TOP, 10 mL) and phenyl ether (1 mL) are heated under vacuum (65 °C, 1 h), and 4.5 mL of the solution is removed. To the remaining solution is added TOP selenium (TOPSe, 1.7 mmol in TOP), and this mixture is injected into rapidly stirring phenyl ether (10 mL) at 200 °C. The solution is returned to 200 °C over 3.5 min. The 4.5-mL portion of the original solution is then mixed with TOPSe (0.85 mmol in TOP) and added dropwise over 8.5 min. After 3 min, the solution is rapidly cooled.
11. For 0.34 eV QDs: lead(II) acetate trihydrate (1.7 mmol) and oleic acid (4.7 mmol) in TOP (7 mL) and phenyl ether (1.5 mL) are heated under vacuum (65 °C, 1 h). TOPSe (1.7 mmol in TOP) is added, and the mixture is injected into rapidly stirring phenyl ether at 250 °C. After 4 min, the solution is rapidly cooled.
12. 3 excited at 808 nm.
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