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A facile approach for decorating quantum dots deep inside of anodically grown self‐organized TiO 2 nanotubes
Author(s) -
Shrestha Nabeen K.,
Yoon Seog Joon,
Lee Deok Yeon,
Lee Misun,
Lim Iseul,
Sung MyungMo,
Ahn Heejoon,
Han SungHwan
Publication year - 2011
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201005020
Subject(s) - quantum dot , nanotechnology , penetration (warfare) , adsorption , ionic bonding , materials science , layer (electronics) , chemical engineering , chemistry , ion , organic chemistry , operations research , engineering
We demonstrate here a simple but very effective approach to decorate anodically grown TiO 2 nanotubes (NTs) uniformly with CdS and PbS quantum dots (QDs) deep inside the NT walls. This approach is based on SILAR (successive ionic layer adsorption and reaction) technique assisted with evacuation of the NTs. The basic idea of evacuation is to remove air pockets trapped inside the NTs so as to clear the passage for the penetration of QD precursors down the bottom of the NTs.(© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)