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Investigation of Zn O nanostructures grown on Si and Ga A s substrates by low‐temperature CBD method
Author(s) -
Sun Jingchang,
Gong Yu,
Liu Kuichao,
Li Yang,
Du Guotong
Publication year - 2014
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201330227
Subject(s) - nanorod , nanostructure , nucleation , substrate (aquarium) , materials science , chemical bath deposition , scanning electron microscope , nanotechnology , chemical engineering , morphology (biology) , crystal growth , deposition (geology) , thin film , chemistry , crystallography , composite material , organic chemistry , paleontology , oceanography , sediment , geology , biology , engineering , genetics
ZnO nanostructures are grown on Si and GaAs substrates by chemical bath deposition (CBD) method. Scanning electron microscope (SEM) measurements indicate that ZnO nanorods are formed on Si substrate, in contrast to the nanorods, network ZnO nanowalls are obtained on GaAs substrate. To elucidate the mechanism of ZnO nanostructures grown by CBD method, the morphology evolution mechanisms of the ZnO with growth time and solution concentration nanostructures are investigated systematically. A corresponding growth model from the view of crystal nucleation and growth process is proposed. The understanding of morphology evolution of ZnO nanostructures on different substrates will facilitate the controllable growth of ZnO nanostructures and therefore crucial for the application of ZnO nanodevices.