稀有金属材料与工程
稀有金屬材料與工程
희유금속재료여공정
RARE METAL MATERIALS AND ENGINEERNG
2012年
8期
1327-1330
,共4页
罗蓉蓉%何鹏%黄婉霞%颜家振%蔡靖涵
囉蓉蓉%何鵬%黃婉霞%顏傢振%蔡靖涵
라용용%하붕%황완하%안가진%채정함
光学开关%变色%二氧化钒薄膜%热致变色
光學開關%變色%二氧化釩薄膜%熱緻變色
광학개관%변색%이양화범박막%열치변색
optical switching%color changing%VO2 films%thermochromism
采用溶胶凝胶及后退火工艺制备云母基底的二氧化钒薄膜,采用XRD、SEM、FTIR及色差研究薄膜的性能.FTIR结果表明:在金属-半导体相变过程中,薄膜在红外光区的透过率变化为77%;变色性能显示相变时薄膜从低温的黄褐色变为高温黄绿色,色差△E*随温度的变化规律与光学开关性能类似,色差△E*在相变过程中的最大值为11.31.
採用溶膠凝膠及後退火工藝製備雲母基底的二氧化釩薄膜,採用XRD、SEM、FTIR及色差研究薄膜的性能.FTIR結果錶明:在金屬-半導體相變過程中,薄膜在紅外光區的透過率變化為77%;變色性能顯示相變時薄膜從低溫的黃褐色變為高溫黃綠色,色差△E*隨溫度的變化規律與光學開關性能類似,色差△E*在相變過程中的最大值為11.31.
채용용효응효급후퇴화공예제비운모기저적이양화범박막,채용XRD、SEM、FTIR급색차연구박막적성능.FTIR결과표명:재금속-반도체상변과정중,박막재홍외광구적투과솔변화위77%;변색성능현시상변시박막종저온적황갈색변위고온황록색,색차△E*수온도적변화규률여광학개관성능유사,색차△E*재상변과정중적최대치위11.31.
VO2 films on muscovite substrate were fabricated by inorganic sol-gel method and the following thermal treatment.The films were characterized by X-ray diffraction,scanning electron microscope (SEM),fourier transform infrared spectrophotometer (FTIR) and color difference (△E*).The FTIR result shows that the film has an infrared transmittance switching efficiency of 77% in the metal-insulator transition.The color changing properties indicate that the film color reversibly changes from khaki to yellow-green as the temperature changes.The relationship between △E* and the temperature presents a hysteresis loop,which is in accordance with the infrared optical switching properties.The maximum of △E* during the film metal-insulator transition is 11.31.