摘要
采用Zn(NO3)2·6H2O、草酸、乙基纤维素构成反应体系,以低热固相反应(Low-heating solid state reaction,LHSR)法制备前驱体,通过灼烧得到粉体产物,再以旋涂法制得薄膜。经表征表明得到一种三维介孔结构纳米Zn O(Mesoporous Nano-ZnO,MNZ)薄膜。400℃处理前驱体后所制备的MNZ薄膜具有最大比表面积且具有光陷阱和毛细管作用,能有效增加光散射及其利用,有利于染料的快速吸附和缩短光阳极浸泡时间。分析薄膜形貌与光电性能之间的关系,为深入采用LHSR法制备光阳极薄膜的研究提供有益的启示。
The precursors were prepared with Zn （NO3）2· 6H2O, HzCzO4-2HzO, ethyl cellulose by low-heating solid state reaction （LHSR） method. The mesoporous nano-ZnO （MNZ）film was fabricated by spin-coating method with the powder obtained via firing the precursors at different temperature. The characterization results showed that a kind of three dimensional mesoporous nano-ZnO （MNZ） films was prepared. The specific surface area of MNZ film which was prepared at 400 ℃ by handling precursors reached the peak and had the functions of optical trap and capillarity, therefore the film could not only effectively improve the light scattering, but also speed up the dye adsorption rate which greatly shortened the soaking time. The relationship between film morphology and photoelectric properties was analyzed for further study of preparing MNZ films by means of LHSR method.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第12期2961-2966,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51102245)
关键词
光电转换
低热固相反应
薄膜
介孔纳米ZnO
比表面积
photoelectric conversion
low-heating solid state reactions
film
mesoporous nano-ZnO
specific surfacearea
