不同衬底上纳米晶wo3 薄膜的光致发光特性 - 中国有色金属学报.pdfVIP

21 5 2011 5 Vol.21 No.5 The Chinese Journal of Nonferrous Metals May 2011 1004-0609(2011)05-1080-07 WO3 1 1 1, 2 1 1 , (1. 410083 2. 110001) (PEG)FTO WO3 X (XRD)(LRS)(FESEM) WO3 WO3 WO3 WO3 WO3 : O614; TB383 A Photoluminescence of nano-structured WO films on 3 different substrates 1 1 1, 2 1 1 LI Wen-zhang , LI Jie , WANG Xuan , HUANG Ye , CHEN Qi-yuan 1. Key Laboratory of Resources Chemistry of Nonferrous Metals, Ministry of Education, School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. Shenyang Aluminum Magnesium Engineering Research Institute, Shenyang 110001, China) Abstract: The WO3 films coated on FTO glass, graphite and quartz glass substrates were prepared by polymeric precursor method involving the use of ammonium metatungstate as the tungsten source and polyethylene glycol as the structure-directing agent. The obtained materials were characterized by means of X-ray diffractometry (XRD), Raman spectrometry and field emission scanning electron microscopy (FESEM). The effects of the substrates on the photoluminescence of WO3 films were investigated. The photoluminescence mechanism of WO3 films with various substrates and annealing temperatures was proposed. The results indicate that the photoluminescence intensity of WO3 films increases with the annealing temper