GZO@TiN纳米流体光学性能探究  

Exploring the Optical Properties of GZO@TiN Nanofluids

作　　者：何国杜 李梦元 吴子华[1,2,3] 王元元[1,2,3] 俞晓晓 HE Guodu;LI Mengyuan;WU Zihua;WANG Yuanyuan;YU Xiaoxiao(School of Energy and Materials,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Thermophysical Properties Big Data Professional Technical Service Platform,Shanghai Polytechnic University,Shanghai 201209,China)

机构地区：[1]上海第二工业大学能源与材料学院,上海201209 [2]上海第二工业大学上海先进热功能材料工程技术研究中心,上海201209 [3]上海第二工业大学上海市热物性大数据专业技术服务平台,上海201209

出　　处：《上海第二工业大学学报》2024年第2期149-156,共8页Journal of Shanghai Polytechnic University

基　　金：上海市启明星培育(扬帆专项)(23YF1413500);国家自然科学基金(52306259);上海第二工业大学研究生副导师科研能力提升专项(EGD23DS10)资助。

摘　　要：近年来,纳米流体在太阳能光热利用方面极具前景。核壳结构纳米颗粒可以耦合多种材料的不同波段效应,调控光谱吸收波段,实现太阳能的全光谱捕获吸收。将在长波具有高吸收的氧化锌掺杂镓(GZO)和在可见吸收好的氮化钛(TiN)形成GZO@TiN核壳结构复合纳米颗粒,可以发挥两种材料的优点。进一步,从调节材料的尺寸和核壳材料出发,探究GZO@TiN复合结构纳米流体的光谱特性变化规律。结果表明,当TiN为核、GZO为壳时,可以显现两种材料的共振效应;当GZO为核、TiN为壳时,长波区域的吸收峰消失。当浓度为10^(-4),光学厚度为10 mm时,TiN(壳)/GZO(核)纳米流体的平均吸收率高达100%。此工作对核壳结构复合纳米颗粒的光谱调控、吸收以及外壳、核心材料的选择有着一定的帮助。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 wavelengths 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 revealed;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.

关 键 词：核壳结构 氮化钛 氧化锌掺杂镓 等离激元效应 光谱调控 

分 类 号：TK519[动力工程及工程热物理—热能工程]