期刊
SCIENCE
卷 349, 期 6243, 页码 54-58出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aab0492
关键词
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资金
- National Science Foundation (NSF) Single Investigator Award [DMR-1409105]
- Singapore Energy Innovation Programme Office
- NSF Materials Research Science and Engineering Centers (MRSEC) program [DMR-1120296]
- NSF [ECCS-0335765]
Development of rapid processes combining hierarchical self-assembly with mesoscopic shape control has remained a challenge. This is particularly true for high-surface-area porous materials essential for applications including separation and detection, catalysis, and energy conversion and storage. We introduce a simple and rapid laser writing method compatible with semiconductor processing technology to control three-dimensionally continuous hierarchically porous polymer network structures and shapes. Combining self-assembly of mixtures of block copolymers and resols with spatially localized transient laser heating enables pore size and pore size distribution control in all-organic and highly conducting inorganic carbon films with variable thickness. The method provides all-laser-controlled pathways to complex high-surface-area structures, including fabrication of microfluidic devices with high-surface-area channels and complex porous crystalline semiconductor nanostructures.
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