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

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

Research output: Contribution to journalArticle

51 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 languageEnglish
Article number113104
JournalApplied Physics Letters
Volume91
Issue number11
DOIs
Publication statusPublished - 2007 Sep 21

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electromagnetic absorption
nanowires
nanocrystals
polarization (charge separation)
rutile
wurtzite
crystallinity
electron transfer
vapor deposition
heat

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Lee, Jung Chul ; Sung, Yun Mo ; Kim, Tae Geun ; Choi, Heon-Jin. / Ti O2 -CdSe nanowire arrays showing visible-range light absorption. In: Applied Physics Letters. 2007 ; Vol. 91, No. 11.
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Ti O2 -CdSe nanowire arrays showing visible-range light absorption. / Lee, Jung Chul; Sung, Yun Mo; Kim, Tae Geun; Choi, Heon-Jin.

In: Applied Physics Letters, Vol. 91, No. 11, 113104, 21.09.2007.

Research output: Contribution to journalArticle

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AU - Lee, Jung Chul

AU - Sung, Yun Mo

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AU - Choi, Heon-Jin

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