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原子级厚度的二维材料是用于光电转换、较有潜力的材料。因为它们具有非常短的光激发载流子扩散路径，进而可以降低光生电子空穴对的复合几率，提高其内部光生载流子的有效分离。原子级厚度的氮化碳作为二维非金属聚合物已被广泛用于光电转换。但是，一般来讲，原子级氮化碳的禁带宽度约为3.06 eV，仅对应太阳光谱中波长小于420 nm的光谱，无法有效利用占太阳光谱约43%的可见光。因此，如何拓展其可见光吸收范围成为...
Measurement of Emissivity of Porous Ceramic Materials
Heat transfer radiation emissivity porous ceramic material
2009/10/15
In this study, measurements of spectral and total emissivities of seven different porous ceramic materials and one ceramic
fibre material are reported. Measurements were made for wavelength range fro...
Convective Heat Transfer In Porous Ceramic Materials
Heat transfer convection porous ceramic
2009/10/14
In this study heat transfer in porous ceramic materials, which o er a potential as an alternative heat transfer medium in a number of systems in which heat transfer takes place, is investigated experi...
Wear resistance of PM composite materials reinforced with the Ti(C,N) ceramic particles
Composites Mechanical properties Abrasive wear
2008/10/30
Purpose: of the project was evaluation of the effect of heat treatment and of the reinforcing Ti(C,N) particles in the EN AW-AlCu4Mg1(A) aluminium alloy on the mechanical properties, wear resistance.D...