The study of structural and optical properties of PVA:PbO2 based solid polymer nanocomposites

被引：83
作者：
Abdulwahid, Rebar T. [1 ]
Abdullah, Omed Gh [2 ]
Aziz, Shujahadeen B. [2 ]
Hussein, Sarkawt A. [2 ]
Muhammad, Fahmi F. [3 ,4 ,5 ]
Yahya, Mohd Y. [3 ]
机构：
[1] Univ Sulaimani, Sch Sci Educ, Fac Sci & Sci Educ, Dept Phys, Sulaimani, Kurdistan Regio, Iraq
[2] Univ Sulaimani, Sch Sci, Fac Sci & Sci Educ, Adv Polymer Mat Res Lab,Dept Phys, Qlyasan St, Sulaimani, Kurdistan Regio, Iraq
[3] Univ Teknol Malaysia, Inst Vehicle Syst & Engn, Ctr Composites, Fac Mech Engn, Johor Baharu 81310, Johor, Malaysia
[4] Koya Univ, Fac Sci & Hlth, Dept Phys, Soft Mat & Devices Lab, Koya, Kurdistan Regio, Iraq
[5] Univ Human Dev, DCRT, Sulaimani, Kurdistan Regio, Iraq
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 11期
关键词：
POLY(VINYL ALCOHOL); PVA; NANOPARTICLES; BEHAVIOR; CDS; FILMS; PEAK;
D O I：
10.1007/s10854-016-5363-y
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this work the structural and optical properties of PVA:PbO2 based solid polymer nanocomposites was investigated. The XRD results indicated the existence of both alpha and beta phases of PbO2 distributed along the PVA matrix. The crystallite size of PbO2 particles was found to be in the nanoscale range (ae19 nm). A pronounced red shift in the absorption spectra and decreased energy gap of the nanocomposite films were observed upon the addition of various fractions of PbO2. These indicated an enhancement in the intermolecular interaction between the PVA host and PbO2 dopant. The plot of refractive index versus dopant fraction was successfully fitted to an empirical equation and a parabolic correlation was found between them, by which a homogeneous distribution of the PbO2 nanoparticles has been confirmed. The proposed Wemple-DiDomenico model in describing the optical band gap was seen to be inconsistent, implying that the PVA:PbO2 nanocomposite films does not obey this model. Consequently, a detailed elaboration on the optical and structural behaviours of the PVA:PbO2 system was given.
引用
收藏
页码：12112 / 12118
页数：7
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