氟掺杂SnO_2纳米粉体的溶胶-凝胶法制备及表征  

Preparation and characterization of fluorine doped tin dioxide nanoparticles by sol-gel method

作　　者：刘凤琴[1] 刘宝春[1] 倪海华[1] 

机构地区：[1]南京工业大学理学院,南京210009

出　　处：《化工新型材料》2012年第7期123-125,共3页New Chemical Materials

摘　　要：以SnCl2.2H2O和HF作为原料通过溶胶-凝胶法制备氟(F)掺杂SnO2(FTO)纳米粉体。采用XRD、TEM、电阻测定和XPS对制得的FTO粉体的结构、粒径、导电性能和组成等进行表征。研究结果表明:在pH为9,600℃煅烧2h和F/Sn掺杂比为0.4的条件下,FTO纳米粉体粒径约为18～45nm,为不规则的球形结构,粉体压片后的薄层电阻为16.34Ω/□。Fluorine--doped tin dioxide （FTO） nanoparticles were successfully prepared by sol--gel technique using SnCl2 · 2H2O and HF as source material. The nanostructure, particle size, condutivity and composition of FTO were char- acterized by X--ray diffraction （XRD）, transmission electron microscopy（TEM）, resistence measurement and X--ray pho- toelectron spectroscopy（XPS）, respectively. The optimum conditions of preparation were that the F/Sn ratio was equal to 0. 4 ,at pH 9 and calcining temperature of 600℃ for 2h,The diameters of FTO nanoparticles having irregular sphere varies from 18-45nrn. The room temperature sheet resistance of sample pellet was about 16.34Ω/□.

关 键 词：FTO 纳米粉体 制备 薄层电阻 

分 类 号：TB383.1[一般工业技术—材料科学与工程]