Size controlled near-infrared high-quality PbSe quantum dots

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917831· OSTI ID:22490344

Rabinal, M. K.; Mulimani, B. G. ^[1]; Greenham, N. C. ^[2]

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1. Department of Physics, Karnatak University, Dharwad-580003 (India)
2. Cavendish Laboratory, Dept. of Physics, University of Cambridge, Cambridge CB3 OHE United Kingdom (United Kingdom)

Herein, we report the size controlled preparation of PbSe quantum dots (QDs) by non coordinating solvent route using oleic acid as surfactant molecules. The particles size is controlled by varying temperature and time of reaction. The present method of synthesis gives highly stable colloids, spherical in shape, better size tunability, narrow size distribution, extremely small size, monodisperse and exhibit strong near-infrared emission. The estimated particles sizes are in the range of 2 to 8 nm. These PbSe quantum dots are used for applications in optoelectronics and biological imaging.

• OSTI ID: 22490344
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
COLLOIDS
COORDINATES
EMISSION
LEAD SELENIDES
MOLECULES
NEAR INFRARED RADIATION
OLEIC ACID
PARTICLE SIZE
QUANTUM DOTS
SOLVENTS
SPHERICAL CONFIGURATION
SYNTHESIS