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Nanometer‐sized colloidal germanium particles: Wet‐chemical synthesis, laser‐induced crystallization and particle growth
Author(s) -
Kornowski Andreas,
Giersig Michael,
Vogel Ralf,
Chemseddine Abdelkarim,
Weller Horst
Publication year - 1993
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19930050907
Subject(s) - germanium , nanometre , materials science , crystallization , semiconductor , nanoparticle , nanotechnology , colloid , silicon , particle (ecology) , particle size , laser , crystallite , chemical engineering , optoelectronics , optics , composite material , metallurgy , oceanography , physics , geology , engineering
Nanometer‐sized semiconductor particles are currently being intensively investigated in many fields of physics and chemistry—especially since the discovery of visible luminescence in porous silicon. This is one of the first papers to concentrate on the synthesis of IV – IV nanoparticles. A purely wet‐chemical room‐temperature synthesis is described that leads to stable nanometer colloidal germanium particles after laser illumination. The size of the crystallites can be controlled by adjusting the illumination conditions. The preparation technique detailed here is not restricted to germanium but can also be applied to other IV–IV semiconductor particles.