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AuthorLiu, Yong
AuthorChe, Renchao
AuthorChen, Gang
AuthorFan, Jianwei
AuthorSun, Zhenkun
AuthorWu, Zhangxiong
AuthorWang, Minghong
AuthorLi, Bin
AuthorWei, Jing
AuthorWei, Yong
AuthorWang, Geng
AuthorGuan, Guozhen
AuthorElzatahry, Ahmed A.
AuthorBagabas, Abdulaziz A.
AuthorAl-Enizi, Abdullah M.
AuthorDeng, Yonghui
AuthorPeng, Huisheng
AuthorZhao, Dongyuan
Available date2016-11-03T09:52:44Z
Publication Date2015-05-08
Publication NameScience Advances
Identifierhttp://dx.doi.org/10.1126/sciadv.1500166
CitationLiu Y, Che R, Chen G, et al. Radially oriented mesoporous TiO2 microspheres with single-crystal–like anatase walls for high-efficiency optoelectronic devices. Science Advances. 2015;1(4):e1500166.
URIhttp://hdl.handle.net/10576/4958
AbstractHighly crystalline mesoporous materials with oriented configurations are in demand for high-performance energy conversion devices. We report a simple evaporation-driven oriented assembly method to synthesize three-dimensional open mesoporous TiO2 microspheres with a diameter of ~800 nm, well-controlled radially oriented hexagonal mesochannels, and crystalline anatase walls. The mesoporous TiO2 spheres have a large accessible surface area (112 m2/g), a large pore volume (0.164 cm3/g), and highly single-crystal–like anatase walls with dominant (101) exposed facets, making them ideal for conducting mesoscopic photoanode films. Dye-sensitized solar cells (DSSCs) based on the mesoporous TiO2 microspheres and commercial dye N719 have a photoelectric conversion efficiency of up to 12.1%. This evaporation-driven approach can create opportunities for tailoring the orientation of inorganic building blocks in the assembly of various mesoporous materials.
SponsorState Key Basic Research Program of China (2013CB934104 and 2012CB224805), the National Science Foundation (21210004), the Science and Technology Commission of Shanghai Municipality (08DZ2270500), the Shanghai Leading Academic Discipline Project (B108), King Abdulaziz City for Science and Technology (project no. 29-280), and Deanship of Scientific Research, King Saud University–The International Highly Cited Research Group Program (IHCRG#14-102). Y.L. also acknowledges the Interdisciplinary Outstanding Doctoral Research Funding of Fudan University (EZH2203302/001).
Languageen
PublisherAmerican Association for the Advancement of Science
SubjectMesoporous materials
Titania
Assembly
Dye-sensitized solar cells
Synthesis
Radial orientation
Single-crystalline
Optoelectronic
TitleRadially oriented mesoporous TiO2 microspheres with single-crystal–like anatase walls for high-efficiency optoelectronic devices
TypeArticle
Issue Number4
Volume Number1
ESSN2375-2548
dc.accessType Open Access


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