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Multidimensional Mo...
Multidimensional Morphology Control for PS-b-P-4 VP Templated Mesoporous Iron (III) Oxide Thin Films
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- Yin, Shanshan (författare)
- Tech Univ Munich, Lehrstuhl Funktionelle Mat Phys Dept, James Franck Str 1, D-85748 Garching, Germany.
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- Cao, Wei (författare)
- Tech Univ Munich, Lehrstuhl Funktionelle Mat Phys Dept, James Franck Str 1, D-85748 Garching, Germany.
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- Ji, Qing (författare)
- Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Peoples R China.
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- Cheng, Yajun (författare)
- Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Peoples R China.
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- Song, Lin (författare)
- Northwestern Polytech Univ, Frontiers Sci Ctr Flexible Elect, Xian Inst Flexible Elect IFE, 127 West Youyi Rd, Xian 710072, Peoples R China.;Northwestern Polytech Univ, Xian Inst Biomed Mat & Engn, 127 West Youyi Rd, Xian 710072, Peoples R China.
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- Li, Nian (författare)
- Tech Univ Munich, Lehrstuhl Funktionelle Mat Phys Dept, James Franck Str 1, D-85748 Garching, Germany.
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- Weindl, Christian L. (författare)
- Tech Univ Munich, Lehrstuhl Funktionelle Mat Phys Dept, James Franck Str 1, D-85748 Garching, Germany.
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- Schwartzkopf, Matthias (författare)
- DESY, Notkestr 85, D-22603 Hamburg, Germany.
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- Roth, Stephan V. (författare)
- KTH,Biokompositer,DESY, Notkestr 85, D-22603 Hamburg, Germany.
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- Muller-Buschbaum, Peter (författare)
- Tech Univ Munich, Lehrstuhl Funktionelle Mat Phys Dept, James Franck Str 1, D-85748 Garching, Germany.;Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Garching, Germany.
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Tech Univ Munich, Lehrstuhl Funktionelle Mat Phys Dept, James Franck Str 1, D-85748 Garching, Germany Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Peoples R China. (creator_code:org_t)
- 2021-06-12
- 2021
- Engelska.
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Ingår i: Advanced Materials Interfaces. - : Wiley. - 2196-7350. ; 8:14
- Relaterad länk:
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Mesoporous alpha-Fe2O3 thin films with large area homogeneity demonstrate tremendous potential in multiple applications. In the present work, the synthesis of morphology-controlled alpha-Fe2O3 thin films is realized with polystyrene-block-poly(4-vinyl pyridine) (PS-b-P4VP) diblock copolymer assisted sol-gel chemistry. The solvent category (DMF and 1,4-dioxane) and polymer-to-FeCl3 ratio used for the solution preparation are systematically varied to tune the morphology of the thin films. For both solvents, DMF and 1,4-dioxane, nanocluster structures are obtained with low PS-b-P4VP concentration. When the concentration of PS-b-P4VP reaches the critical micelle concentration, spherical and wormlike porous structures are specifically formed in the DMF and 1,4-dioxane solvent system, respectively. Further increasing the polymer-to-FeCl3 ratios leads to the enlargement of the spherical pore sizes in the DMF system, whereas the center-to-center distances of the wormlike structures in the 1,4-dioxane system decrease. Moreover, DMF/1,4-dioxane solvent mixtures with different volume ratios are applied for the sol-gel solution preparation to gain more insight into how the solvent selectivity affects the thin film morphology. By adjusting the preferential affinity of the solvent mixture to the polymer blocks, a spherical to wormlike pore shape transition is observed with a critical Delta chi value of around 0.77.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- alpha-Fe2O3
- GISAXS
- PS-b-P4VP
- thin film morphology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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