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Synthesis of SnO 2 Nanowires Using SnI 2 as Precursor and Their Application as High‐Performance Self‐Powered Ultraviolet Photodetectors
Author(s) -
Jiang Jie,
Heck Florian,
Hofmann Detlev M.,
Eickhoff Martin
Publication year - 2018
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201700426
Subject(s) - nanowire , tin , materials science , photodetector , chemical vapor deposition , ultraviolet , rutile , nanostructure , optoelectronics , nanotechnology , nanocrystal , diffraction , quantum efficiency , chemical engineering , optics , metallurgy , physics , engineering
SnO 2 nanowires are synthesized by chemical vapor deposition using elemental tin or SnI 2 as tin precursors. The latter is found to be more controllable for the synthesis of SnO 2 nanostructures. X‐ray diffraction analysis reveals that the SnO 2 nanowires exhibit rutile crystal structure. Single nanowire photodetectors are processed, which show high responsivities, high external quantum efficiencies, and fast response times at nominal zero bias. The excellent device performance is attributed to the small size and high crystalline quality of the nanowire.