Ti O2 -CdSe nanowire arrays showing visible-range light absorption

Jung Chul Lee; Yun Mo Sung; Tae Geun Kim; Heon Jin Choi

doi:10.1063/1.2783229

Ti O2 -CdSe nanowire arrays showing visible-range light absorption

Jung Chul Lee, Yun Mo Sung, Tae Geun Kim, Heon Jin Choi

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54 Citations (Scopus)

Abstract

High-density single crystalline Ti O2 nanowires (∼50 nm diameter) were grown on Ti substrates by chemical vapor deposition, and they were overcoated with the solution containing CdSe nanocrystals (∼5 nm diameter) and heat treated at 600 °C to form Ti O2 hetersotructured nanowire arrays. The Ti O2 nanowire arrays showed uniformly distributed CdSe nanocrystals and high crystallinity of rutile and wurtzite from the Ti O2 and the CdSe, respectively. Owing to the heterostructure of Ti O2, they demonstrate almost full visible-range light absorption, and thus enhanced photocatalytic activity by the charge separation via electron and hole transfers between the CdSe and the Ti O2.

Original language	English
Article number	113104
Journal	Applied Physics Letters
Volume	91
Issue number	11
DOIs	https://doi.org/10.1063/1.2783229
Publication status	Published - 2007

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation (KRF) grant by the Korean Government (MOEHRD) (KRF-2006-311-D00568).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Ti O2 -CdSe nanowire arrays showing visible-range light absorption",

abstract = "High-density single crystalline Ti O2 nanowires (∼50 nm diameter) were grown on Ti substrates by chemical vapor deposition, and they were overcoated with the solution containing CdSe nanocrystals (∼5 nm diameter) and heat treated at 600 °C to form Ti O2 hetersotructured nanowire arrays. The Ti O2 nanowire arrays showed uniformly distributed CdSe nanocrystals and high crystallinity of rutile and wurtzite from the Ti O2 and the CdSe, respectively. Owing to the heterostructure of Ti O2, they demonstrate almost full visible-range light absorption, and thus enhanced photocatalytic activity by the charge separation via electron and hole transfers between the CdSe and the Ti O2.",

author = "Lee, {Jung Chul} and Sung, {Yun Mo} and Kim, {Tae Geun} and Choi, {Heon Jin}",

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journal = "Applied Physics Letters",

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T1 - Ti O2 -CdSe nanowire arrays showing visible-range light absorption

AU - Lee, Jung Chul

AU - Sung, Yun Mo

AU - Kim, Tae Geun

AU - Choi, Heon Jin

N1 - Funding Information: This work was supported by the Korea Research Foundation (KRF) grant by the Korean Government (MOEHRD) (KRF-2006-311-D00568).

PY - 2007

Y1 - 2007

N2 - High-density single crystalline Ti O2 nanowires (∼50 nm diameter) were grown on Ti substrates by chemical vapor deposition, and they were overcoated with the solution containing CdSe nanocrystals (∼5 nm diameter) and heat treated at 600 °C to form Ti O2 hetersotructured nanowire arrays. The Ti O2 nanowire arrays showed uniformly distributed CdSe nanocrystals and high crystallinity of rutile and wurtzite from the Ti O2 and the CdSe, respectively. Owing to the heterostructure of Ti O2, they demonstrate almost full visible-range light absorption, and thus enhanced photocatalytic activity by the charge separation via electron and hole transfers between the CdSe and the Ti O2.

AB - High-density single crystalline Ti O2 nanowires (∼50 nm diameter) were grown on Ti substrates by chemical vapor deposition, and they were overcoated with the solution containing CdSe nanocrystals (∼5 nm diameter) and heat treated at 600 °C to form Ti O2 hetersotructured nanowire arrays. The Ti O2 nanowire arrays showed uniformly distributed CdSe nanocrystals and high crystallinity of rutile and wurtzite from the Ti O2 and the CdSe, respectively. Owing to the heterostructure of Ti O2, they demonstrate almost full visible-range light absorption, and thus enhanced photocatalytic activity by the charge separation via electron and hole transfers between the CdSe and the Ti O2.

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DO - 10.1063/1.2783229

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SN - 0003-6951

VL - 91

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Ti O2 -CdSe nanowire arrays showing visible-range light absorption

Abstract

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