Mechanical properties of C60 thin films at the air–water interface

摘要: Abstract Understanding the mechanical properties of ultra-thin films formed by self-assembly molecules/nanoparticles/colloids at fluid–fluid interfaces is central to many technological applications. Here, we have carried out interfacial rheology measurements systematically investigate concentration dependent viscoelastic response 2D Fullerene C60 air–water interface. With increasing concentration, amplitude sweep show that undergo a transition from liquid-like solid-like behaviour. Interestingly, for high concentrations's, loss modulus G ′ reaches maximum before onset power-law shear-thinning in , storage modulus, and . The exponents ratio 2. This typical systems soft glassy We also observe increase low frequencies frequency Newtonian behaviour, with shear rate, steady measurements. Our results are qualitative agreement phenomenological model.