Synthesis of arrayed, TiO2 needlelike nanostructures via a polystyrene-block-poly(4-vinylpyridine) diblock copolymer template

Chin Cheng Weng, Kuo Feng Hsu, Kung-Hwa Wei*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Arrayed, needlelike nanostructures of rutile phase crystal TiO2 were grown on a Si substrate containing TiO2 seeds prepared through a thin polystyrene-6-poly(4-vinylpyridine) (PS-b-P4VP) diblock copolymer template. The morphology of the deposited TiO2 nanostructures was characterized by field-emission scanning electron microscopy, X-ray diffraction, and transmission electron microscopy (TEM). By using TiO2 seeds prepared from their diblock copolymer PS-b-P4VP template, we fabricated arrayed, needlelike rutile TiO2 nanostructures with variable spatial positions and densities. The distance between two TiO2 needle bunches (120 and 160 nm) could be controlled using block copolymer templates with different molecular weights.

Original languageEnglish
Pages (from-to)4080-4086
Number of pages7
JournalChemistry of Materials
Volume16
Issue number21
DOIs
StatePublished - 19 Oct 2004

Fingerprint Dive into the research topics of 'Synthesis of arrayed, TiO2 needlelike nanostructures via a polystyrene-block-poly(4-vinylpyridine) diblock copolymer template'. Together they form a unique fingerprint.

Cite this