(1. 中南大學(xué) 化學(xué)化工學(xué)院，有色金屬資源化學(xué)教育部重點實驗室，長沙 410083；
2. 沈陽鋁鎂設(shè)計研究院，沈陽 110001)
摘 要: 以偏鎢酸銨為鎢源，聚乙二醇(PEG)為聚合物合成前驅(qū)體溶膠，分別在FTO導(dǎo)電玻璃、石英玻璃和石墨襯底制備WO3薄膜，利用X射線衍射(XRD)、拉曼光譜(LRS)和場發(fā)射掃描電鏡(FESEM)等手段對薄膜進(jìn)行結(jié)構(gòu)表征，研究襯底和熱處理溫度對WO3薄膜光致發(fā)光性能的影響，并探討二者對WO3薄膜光致發(fā)光性能的影響機制。結(jié)果表明：隨著熱處理溫度的升高，WO3薄膜光致發(fā)光性能顯著提高；在相同熱處理溫度下，石墨襯底WO3薄膜具有最強的光致發(fā)光性能。
關(guān)鍵字: WO3薄膜；襯底；聚合物前驅(qū)體法；光致發(fā)光
different substrates
（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 temperature increasing and the films coated on graphite substrates have the best photoluminescence performance.
Key words: WO3 thin films; substrate; polymeric precursor method; photoluminescence
