کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6535834 | 49313 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Poriferous microtablet of anatase TiO2 growth on an ITO surface for high-efficiency dye-sensitized solar cells
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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![عکس صفحه اول مقاله: Poriferous microtablet of anatase TiO2 growth on an ITO surface for high-efficiency dye-sensitized solar cells Poriferous microtablet of anatase TiO2 growth on an ITO surface for high-efficiency dye-sensitized solar cells](/preview/png/6535834.png)
چکیده انگلیسی
A liquid-phase deposition method enables the synthesis of a unique anatase TiO2 structure, which consists of poriferous microtablets with a hairy nanowire skin and a body constructed by a brick-like assembly of nanocuboids, directly onto an ITO substrate. The poriferous TiO2 microtablets (PTM) have square-shaped, rounded vertices, edges that are 10 µm in length and a thickness of approximately 5 μm. They can be grown at a high density onto an ITO surface from a growth solution that contains ammonium hexafluoro titanate and boric acid. The nanowires that decorate the PTM surface have a diameter of 10 nm and a length of approximately 200 nm. Its bulk structure is constructed from a brick-like assembly of nanocuboids with a width, length and thickness of approximately 10, 20 and 5 nm, respectively. The driving factor for the formation of this structure is oriented attachment under kinetic control. The preliminary results of the application of this structure in dye-sensitized solar cell (DSSC) devices indicate a power conversion efficiency as high as 3.0%. Because the active surface area in the PTM is large enough for dye adsorption (for a typical dye loading as high as approximately 936 nmol/cm2) and surface reactions, a high-efficiency DSSC device may be achievable using this new structure if the optimum conditions are obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 122, March 2014, Pages 174-182
Journal: Solar Energy Materials and Solar Cells - Volume 122, March 2014, Pages 174-182
نویسندگان
Akrajas Ali Umar, Suratun Nafisah, Siti Khatijah Md Saad, Sin Tee Tan, Aamna Balouch, Muhamad Mat Salleh, Munetaka Oyama,