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Preparation, Formation Mechanism, and Photoresponse Properties of GeSe Microtubes with a Rectangular Cross Section
Author(s) -
Shi Liang,
Li Yanan,
Dai Yumei
Publication year - 2015
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201402333
Subject(s) - oleylamine , materials science , cross section (physics) , etching (microfabrication) , solvent , crystal (programming language) , spectroscopy , chemical engineering , nanotechnology , nanocrystal , chemistry , organic chemistry , physics , layer (electronics) , quantum mechanics , computer science , engineering , programming language
GeSe single‐crystalline microtubes with a rectangular cross section have been fabricated through a facile solution approach. The as‐prepared GeSe microtubes have diameters in the range of 1–2 μm and wall thicknesses of approximately 100–200 nm. Crystal growth along the [010] direction is preferable for the GeSe microtubes. The formation of GeSe microtubes is proposed to originate from an etching effect of the solvent oleylamine. A clear photoresponsive behavior has been found for the as‐synthesized GeSe microtubes. The products were characterized by using powder XRD, energy‐dispersive X‐ray spectroscopy, TEM, SEM, and UV/Vis spectrophotometry.