摘要
胶体晶体模板法制备的反蛋白石(IO)通常为密堆积结构,而非密堆积的IO可以具有更可控的孔道结构及更宽的光子能带隙,具有重要的意义。通过对密堆积的SiO_2 IO进行化学气相沉积(CVD)法填充,制备非密堆积的IO,并以其为模板通过碳的CVD及SiO_2的刻蚀,制备非密堆积碳IO。其结构为通过管道相互连通的空心碳球阵列,其中空心球及管道直径随着SiO_2 CVD沉积层厚度的增大而减小,管道长度随着SiO_2 CVD沉积层厚度的增大而增大,制备方法具有较好的可控性。该材料在染料敏化太阳能电池、传感器和催化等领域具有较好的潜在应用前景。
Inverse opals（IOs）obtained from templating against colloidal crystals normally have a close-packed structure.However,non-close-packed（ncp）IOs are of great importance because they might have a better control over pore structure and wider photonic bandgap.Through chemical vapor deposition（CVD）infiltration of SiO2 IOs,ncp IOs were synthesized.Subsequently,after CVD of carbon and removal of SiO2,ncp carbon IOs,with a structure of spherical voids interconnected with tubes were successfully synthesized.With the increase of SiO2 CVD layer thickness,the diameter of spherical voids and tubes in the carbon IOs decreased and the length of tubes increased,which rendered the fabrication method had high controllability.These carbon ncp IOs might found applications in the fields of dye-sensitized solar cell,sensors and catalysis.
出处
《化工新型材料》
CAS
CSCD
北大核心
2017年第8期113-115,118,共4页
New Chemical Materials
基金
国家自然科学基金(51302109)
江苏省自然科学基金(BK20130144)
关键词
胶体晶体
碳反蛋白石
自组装
化学气相沉积
colloidal crystal
carbon inverse opal
self-assembly
chemical vapor deposition
