摘要：鐵電體薄膜，是一類重要的功能薄膜材料，是目前研究的前沿與熱點(diǎn)之一，通過其鐵電、壓電、介電等效應(yīng)，發(fā)揮其在信號(hào)存儲(chǔ)、轉(zhuǎn)換、調(diào)制、開關(guān)、傳感等應(yīng)用領(lǐng)域里的作用。本文研究了厚度對(duì)鐵電共聚物P(VDF-TrFE）、三聚物P(VDF-TrFE-CFE)的反射率及透射率的影響。首先，用垂直提拉涂膜法制備了相應(yīng)的薄膜（2、4層的2%濃度的共聚物薄膜；2、4層的2%濃度的三聚物薄膜；2、4層的4%濃度的共聚物薄膜；2、4層的4%濃度的三聚物薄膜），然后，通過量子效率測(cè)試系統(tǒng)對(duì)不同厚度的同種薄膜做了測(cè)試，根據(jù)結(jié)果所得到的反射譜及透射譜分析表明，厚度對(duì)P(VDF-TrFE)、P(VDF-TrFE-CFE)薄膜的反射率及透射率基本沒有影響。

關(guān)鍵詞: 鐵電共聚物薄膜、量子效率測(cè)試、反射譜、透射譜

Abstract:Ferroelectric thin films are a kind of vital functional materials which have been attracted great attention. The ferroelectricity, piezoelectricity, dielectric effect play an important role in the field of the signal storage, conversion, modulation, switch, sensor. This paper is concerntrated on the effect of film thickness on the reflectivity and transmissivity of ferroelectric P (VDF-TrFE) and P (VDF-TrFE-CFE) copolymer thin films. First of all, we prepared the copolymer thin films by vertical pulling coating which have the layers of 2 and 4 and the concentration of 2% for copolymer thin films, have the layers of 2 and 4 and the concentration of 2% for trimer thin films, have the layers of 2 and 4 and the concentration of 4% for copolymer thin films, have the layers of 2 and 4 and the concentration of 4% for trimer thin films. Secondly, according to the results of the reflection spectrum and transmission spectrum analysis, the effect of film thickness on the reflectivity and transmissivity of P (VDF-TrFE) and P (VDF-TrFE-CFE) thin films is uncertained.

Key words:Ferroelectric thin films、reflection spectrum、transmission spectrum