Colloidal Synthesis of Infrared-Emitting Germanium Nanocrystals | Zendy

Doh C. Lee | Zendy; Jeffrey M. Pietryga | Zendy; István Robel | Zendy; D. J. Werder | Zendy; Richard D. Schaller | Zendy; Victor I. Klimov | Zendy

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Colloidal Synthesis of Infrared-Emitting Germanium Nanocrystals

Author(s) -

Doh C. Lee,

Jeffrey M. Pietryga,

István Robel,

D. J. Werder,

Richard D. Schaller,

Victor I. Klimov

Publication year - 2009

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja809218s

Subject(s) - nanocrystal , chemistry , germanium , photoluminescence , transmission electron microscopy , infrared , quantum dot , colloid , nanotechnology , potential well , chemical engineering , analytical chemistry (journal) , optoelectronics , organic chemistry , silicon , optics , materials science , physics , engineering

In this study, we synthesized Ge nanocrystals and studied the effects of variables such as solvents, reducing agents, reaction temperature, and capping ligands. The resulting nanocrystals showed infrared photoluminescence with quantum yields as high as approximately 8% and enhanced resistance to oxidation. Size analysis of the samples by transmission electron microscopy revealed that the size dependence of the emission is consistent with the effects of quantum confinement.

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