The paper "Basic Principles and Current Trends in Colloidal Synthesis of Highly Luminescent Semiconductor Nanocrystals" from the Nanochemistry Group of LNBE has been accepted for publication by the Chemistry—A European Journal

The new paper by Dr. Samokhvalov, Dr. Artemyev, and Prof. Nabiev reviews the main strategies, approaches and advances in colloidal synthesis of AIIBVI nanocrystals (CdSe, CdTe, etc.) displaying intense luminescence in the spectral range from UV to near-IR.

The authors suggest the strategy of one-pot synthesis of defect-free quantum dots via intermediate formation of magic-sized nanoclusters with a uniquely narrow size distribution followed by coating with a gradient epitaxial shell, which determines a mild potential barrier for charge carriages. Other promising methods for obtaining defect-free nanocrystals with luminescent quantum yields approaching 100% are discussed. In alloyed nanocrystals (containing at least two species of cations or anions, e.g., ZnxCd1-xSe), the spectral position of the photoluminescence peak is chemically regulated without changing the nanocrystal size. Doped nanocrystals where the energy of exciton excitement is transferred to the dopant, e.g., manganese or copper ions, with its own photoluminescence band, may be regarded as a special case of alloyed nanocrystals. In addition, doping is a way to impart new properties (e.g., magnetic ones) to luminescent nanocrystals.

 

With its high impact factor of 5.925, the peer-reviewed Chemistry—A European Journal is included in the top twenty among 154 world's leading journals in the area of multidisciplinary applications of chemical sciences. It publishes papers from all fields of chemistry and related branches of science. In addition, the journal has a special section familiarizing the readers with the most advanced studies and presenting new views on old issues. It is this section where the paper from the LNBE Nanochemistry Group will be published.

The journal website: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-3765

Contact:

P.S. Samokhvalov, Ph.D., research assistant (p.samokhvalov@gmail.com)

Nanochemistry Group, Laboratory of Nano-Bioengineering, Moscow Engineering Physics Institute, 31 Kashirskoe shosse, Moscow, 115409 Russia
http://www.lnbe.mephi.ru

 
 
 
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