暨南大学学报(自然科学与医学版)
暨南大學學報(自然科學與醫學版)
기남대학학보(자연과학여의학판)
JOURNAL OF JINAN UNIVERSITY(NATURAL SCIENCE & MEDICINE EDITION)
2014年
2期
196-200
,共5页
陈中威%强鹏飞%杨培华%麦文杰%李玲
陳中威%彊鵬飛%楊培華%麥文傑%李玲
진중위%강붕비%양배화%맥문걸%리령
三氧化钨薄膜%电致变色%热蒸镀
三氧化鎢薄膜%電緻變色%熱蒸鍍
삼양화오박막%전치변색%열증도
tungsten trioxide film%electrochromism%vacuum evaporation
采用热蒸镀法在氟掺杂的锡氧化物(fluorine-doped tin oxide,FTO)导电玻璃衬底上沉积了一层WO3薄膜,运用X线衍射(XRD)、扫描电子显微镜(SEM)和原子力显微镜(AFM)等手段对样品进行表征,并运用紫外-可见光谱法表征了薄膜样品的电致变色性能.结果表明,该氧化钨薄膜在外加电压作用下,从褪色态(+0.9 V)到着色态(-2.0 V),颜色由淡蓝色变为不透明的深蓝色,光透过率(波长为632.8 nm)由~72%下降为~0%,光学调节幅度高达72%,光密度(optical density,OD)变化量达到3,着色/褪色响应速度分别为30/20 s,循环(-1.8 V/+0.8 V)30周期后变色性能保持良好,综合性能优于目前文献报道.由于该法制备的氧化钨薄膜电致变色综合性能突出,特别是光密度变化量大,在变色玻璃、智能窗户等环保节能领域将有广泛的应用前景.
採用熱蒸鍍法在氟摻雜的錫氧化物(fluorine-doped tin oxide,FTO)導電玻璃襯底上沉積瞭一層WO3薄膜,運用X線衍射(XRD)、掃描電子顯微鏡(SEM)和原子力顯微鏡(AFM)等手段對樣品進行錶徵,併運用紫外-可見光譜法錶徵瞭薄膜樣品的電緻變色性能.結果錶明,該氧化鎢薄膜在外加電壓作用下,從褪色態(+0.9 V)到著色態(-2.0 V),顏色由淡藍色變為不透明的深藍色,光透過率(波長為632.8 nm)由~72%下降為~0%,光學調節幅度高達72%,光密度(optical density,OD)變化量達到3,著色/褪色響應速度分彆為30/20 s,循環(-1.8 V/+0.8 V)30週期後變色性能保持良好,綜閤性能優于目前文獻報道.由于該法製備的氧化鎢薄膜電緻變色綜閤性能突齣,特彆是光密度變化量大,在變色玻璃、智能窗戶等環保節能領域將有廣汎的應用前景.
채용열증도법재불참잡적석양화물(fluorine-doped tin oxide,FTO)도전파리츤저상침적료일층WO3박막,운용X선연사(XRD)、소묘전자현미경(SEM)화원자력현미경(AFM)등수단대양품진행표정,병운용자외-가견광보법표정료박막양품적전치변색성능.결과표명,해양화오박막재외가전압작용하,종퇴색태(+0.9 V)도착색태(-2.0 V),안색유담람색변위불투명적심람색,광투과솔(파장위632.8 nm)유~72%하강위~0%,광학조절폭도고체72%,광밀도(optical density,OD)변화량체도3,착색/퇴색향응속도분별위30/20 s,순배(-1.8 V/+0.8 V)30주기후변색성능보지량호,종합성능우우목전문헌보도.유우해법제비적양화오박막전치변색종합성능돌출,특별시광밀도변화량대,재변색파리、지능창호등배보절능영역장유엄범적응용전경.
Tungsten trioxide film was deposited on fluorine-doped tin oxide (FTO)glass substrate by vacuum evaporation method.The X-Ray diffraction,scanning electron microscope and atomic force mi-croscope were employed to characterize the composition and surface morphology of the sample.The elec-trochromic properties were determined by ultra-violet and visible spectrum.The results showed the almost colorless film turned to deep blue when the voltage was transformed from +0.9 V to -2.0 V,the trans-mittance at 632.8 nm fell from ~72%to ~0%,which meant that the accommodation amplitude was a-bout 72%and the change of optical density (OD)was up to 3 .The film took 30 seconds to color and 20 seconds to fade.In 30 cylces of coloring/bleaching test at -1.8/+0.8 V,the results indicated that the films presented a stable electrochromic properties.Because of the outstanding electrochromic properties, especially the change of optical density,our films should have broad applications in the field of environ-ment protection and energy-related products such as electrochromic glass and smart window.