Exploring the Optical Properties of GZO@TiN Nanofluids
In recent years,nanofluids have great prospects in solar thermal utilization.The nanoparticle core-shell structure can couple the different band effect of multiple materials,modulate the spectral absorption bands,and realize the full-spectrum capture absorption of solar energy.Formation of GZO@TiN core-shell composite nanoparticles by combining GZO with high absorption at long wave-lengths and TiN with high absorption in the visible region,can utilize the advantages of both materials.Further onwards,starting from the dimension and the core shell material,probing the changing regularity of spectral properties of GZO@TiN composite structured nanofluids.The results show that when TiN is the core and GZO is the shell,the resonance effect of the two materials can be re-vealed;When GZO is the core and TiN is the shell,the absorption peak disappears in the long-wave region.The average absorption of TiN(shell)/GZO(core)nanofluids is up to 100％at a concentration of 10-4 and an optical thickness of 10 mm.This work is helpful for the spectral regulation and absorption as well as the selection of shell and core materials.
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