ZnO@Si(100) and ZnO@Si(111): Hydrothermal Synthesis, Morphology, and Lasing Characteristics


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Аннотация

Microstructures have been formed on single-crystal silicon substrates of different crystallographic orientations, (111) and (100), under “soft” hydrothermal conditions. Well-faceted ZnO microcrystallites were obtained on the Si(111) surface, whereas the Si(100) substrate surface was covered with willemite (Zn2SiO4) crystallites, and zinc oxide microcrystallites were observed in only a narrow region ∼1 mm wide over the substrate edge. These results indicate clear influence of the crystallographic orientation of silicon substrates on the processes of crystal formation and microstructure growth under conditions of low-temperature hydrothermal synthesis. Low-threshold effective lasing has been detected on well-faceted zinc oxide crystallites under optical excitation.

Авторлар туралы

L. Li

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”
Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: lyuli@crys.ras.ru
Ресей, Moscow, 119333

V. Senina

Moscow State University

Email: lyuli@crys.ras.ru
Ресей, Moscow, 119991

G. Goryunov

Moscow State University

Email: lyuli@crys.ras.ru
Ресей, Moscow, 119991

D. Kostomarov

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”
Russian Academy of Sciences

Email: lyuli@crys.ras.ru
Ресей, Moscow, 119333

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