Bifunctional TiCl4 treatment in CdSe quantum dots sensitized TiO2 microrods for photoelectrochemical water splitting

Title
Bifunctional TiCl4 treatment in CdSe quantum dots sensitized TiO2 microrods for photoelectrochemical water splitting
Author(s)
Hyun Sik Kim[Hyun Sik Kim]정성우Si Kyung Yang[Si Kyung Yang]안광순Soon Hyung Kang[Soon Hyung Kang]
Keywords
SOLAR-CELLS; NANORODS; FILMS
Issue Date
201311
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v.111, pp.47 - 50
Abstract
Rutile TiO2 microrods (TOMRs) were synthesized using a facile hydrothermal method and subsequently surface-treated with TiCl4 solution at different concentrations. CdSe quantum dots (QDs) were assembled on the TiO2 films as a sensitizer to improve the light harvesting efficiency in visible light, because the TiO2 absorbs only UV light. As the concentration of TiCl4 solution to 200 mM was increased, the surface coverage of anatase TiO2 nanoparticles and the loading of CdSe QDs also increased. Furthermore, the anatase TiO2 between the rutile TOMR and the CdSe QD facilitates the charge separation, which suppresses the charge recombination. Due to these beneficial effects, the photoelectrochemical performance was significantly enhanced with the increased TiCl4 concentration. (C) 2013 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/28534http://dx.doi.org/10.1016/j.matlet.2013.08.054
ISSN
0167-577X
Appears in Collections:
중앙도서관 > rims journal
공과대학 > 화학공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE