title: Radially oriented mesoporous TiO2 microspheres with single-crystal-like anatase walls for high-efficiency optoelectronic devices.
abstract: Highly 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 m(2)/g), a large pore volume (0.164 cm(3)/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.
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Renchao
authors.initials: R
authors.lastname: Che
authors.affiliation: Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China. ; College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Jianwei
authors.initials: J
authors.lastname: Fan
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Zhenkun
authors.initials: Z
authors.lastname: Sun
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Zhangxiong
authors.initials: Z
authors.lastname: Wu
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Minghong
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wei
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wei
authors.affiliation: Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China.
authors.forename: Geng
authors.initials: G
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Guozhen
authors.initials: G
authors.lastname: Guan
authors.affiliation: Materials Science and Technology Program, College of Arts and Sciences, Qatar University, P. O. Box 2713, Doha, Qatar. ; Polymer Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technology Applications, New Borg El-Arab City, Alexandria 21934, Egypt.
authors.forename: Ahmed A
authors.initials: AA
authors.lastname: Elzatahry
authors.affiliation: National Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST), P. O. Box 6086, Riyadh 11442, Kingdom of Saudi Arabia.
authors.forename: Abdulaziz A
authors.initials: AA
authors.lastname: Bagabas
authors.affiliation: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia.
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Al-Enizi
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Yonghui
authors.initials: Y
authors.lastname: Deng
authors.affiliation: State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China.
authors.forename: Huisheng
authors.initials: H
authors.lastname: Peng
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
authors.forename: Dongyuan
authors.initials: D
authors.lastname: Zhao
keywords: Assembly; Dye-sensitized solar cells; Mesoporous materials; Optoelectronic; Radial orientation; Single-crystalline; Synthesis; Titania