期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 1189, 期 -, 页码 352-359出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2019.04.014
关键词
Copper ions doped (PVA:PVP) films; Semiconducting polymer devices; XRD and FT-IR spectroscopy; Optical band gap; Polymer optical filters; High frequency refractive index
High quality semiconducting polymers of copper ions doped poly(vinyl alcohol) (PVA):poly(vinyl pyrrolidone) (50:50 wt%) [(PVA:PVP)-x wt % Cu2+] [x= 0,3,5,15 and 20 wt%1 composite films were successfully prepared by the conventional solution casting method. The characterizations of the films were investigated by XRD scan, FT-IR and UV-Vis-NIR spectroscopic analysis. The obtained values of the d-spacing and crystallite length D parameters from Gaussian fitting of the broad XRD peaks of the virgin PVA, [(PVA:PVP)-x wt % Cu2+] polymer composite blend films indicate the miscibility and compatibility of the blend constituents and bonding of positively charged Cu2+ ions with negatively charged OH groups of the polymer chains. The optical energy gaps and the high frequency refractive indices are strongly affected by incorporation of Cu2+ ions in the (PVA:PVP) blend chains where the optical gap decreased from 4.68 eV for pure (PVA:PVP) polymer blend to 2.95 eV for [(PVA:PVP)-20 wt % Cu2+] and the high frequency refractive index increased from 2.42 to 2.78. Based on the collected results, the copper ions doped (PVA:PVP) polymer blend composite films can be considered as a promising, new and facile material for UV filters, semiconducting polymer devices, planar polymer waveguides and polymer solar cells designing. (C) 2019 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据