Metallic glasses are alloys without long-range atomic arrangement, obtained from the atomic structure of its liquid state. The solid metallic glass is fabricated by rapidly quenching the liquid-state alloy, which allows it to circumvent crystal growth prior to solidification. The unique, metallic and amorphous properties of metallic glasses have opened up possibilities for various applications, for they exhibit superior mechanical and chemical stability than that of the conventional crystalline metals. In this research, metallic glass thin film sputtered onto polymeric film exhibited encouraging results in mechanical reversibility through bending tests. Subsequently, suitable sheet resistance and work functions for applications photovoltaic cells were attained through compositional tuning, which enabled fabrication of an electrode for OPV, with enhanced chemical stability than that of crystalline metal.
We have investigated simulation, fabrication, 2D tungsten PhC for selective emitters of TPV system. Using finite difference time domain simulations, we designed and fabricated a 2D W PhC with cylindrical cavities of diameter from
490 nm to 555 nm, depth 1.5 μm. This structure may have a cutoff near the wavelength of 2.0 μm. A marked enhancement is expected in the emissivity of the 2D W PhC at wavelengths below 2.0μm compared to flat W. By using
standard silicon processing techniques that are simple, efficient and easily scalable, selective emitting structure can be fabricated at lower cost and reduced complexity of individual components.
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