Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 33, Pages 17204-17209Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm32326e
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Funding
- National Natural Science Foundation of China [50972101, 51072131]
- Guangdong Province Innovation R&D Team Plan for Energy and Environmental Materials [2009010025]
- NSF of Tianjin, China [12JCZDJC27400]
- Key project for basic research for three main areas of Shenzhen [JC201104210152A]
- Program of Introducing Talents of Discipline to Universities, China [B06006]
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A liquid-air self-assembly strategy is proposed to uniformly hybridize hydrophobic graphene with amphiphilic polymer, like PVA (poly(vinyl alcohol)), in a thin membrane, where the polymer imparts aqueous-dispersion and membrane-forming abilities to the encapsulated graphene. The microstructure, transmittance and wettability of the GNS/PVA hybrid membranes are finely tunable by changing the GNS fraction. Due to strong interaction between GNSs and PVA, the GNS-incorporated hybrid membrane formed at liquid-air interface shows improved thermal stability and highly enhanced mechanical performance as compared to GNS-free PVA membrane. Also, well-distributed GNS in the transparent polymer carrier make the hybrid membrane an ideal saturable absorber in ultrafast laser systems.
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