کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8021315 | 1517277 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bifunctional TiCl4 treatment in CdSe quantum dots sensitized TiO2 microrods for photoelectrochemical water splitting
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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 200Â 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 111, 15 November 2013, Pages 47-50
Journal: Materials Letters - Volume 111, 15 November 2013, Pages 47-50
نویسندگان
Hyun Sik Kim, Sung-Woo Jung, Si Kyung Yang, Kwang-Soon Ahn, Soon Hyung Kang,