The synthesis of a Cu0.8Zn0.2Sb2-polyacrylamide nanocomposite by frontal polymerization for moisture and photodetection performance

被引：16

作者：

Chaudhary, Priyanka ^{[1
]}

Maurya, Dheeraj Kumar ^{[2
]}

Tripathi, Ravi Kant ^{[1
]}

Yadav, B. C. ^{[1
]}

Golubeva, Nina D. ^{[3
]}

Knerelman, Evgeniya I. ^{[3
]}

Uflyand, Igor E. ^{[4
]}

Dzhardimalieva, Gulzhian I. ^{[3
]}

机构：

[1] Babasaheb Bhimrao Ambedkar Univ, Dept Phys, Nanomat & Sensors Res Lab, Lucknow 226025, UP, India

[2] Pondicherry Univ, Electromat Res Lab, Ctr Nanosci & Technol, Pondicherry 605014, India

[3] Russian Acad Sci, Inst Problems Chem Phys, Lab Metallopolymers, Chernogolovka 142432, Moscow Region, Russia

[4] Southern Fed Univ, Dept Chem, B Sadovaya Str 105-42, Rostov Na Donu 344006, Russia

来源：

MATERIALS ADVANCES | 2020年 / 1卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

VACUUM-ARC TECHNIQUE; HUMIDITY SENSOR; RELATIVE-HUMIDITY; THIN-FILMS; ZN; POLYACRYLAMIDE; SILICON; CU; TEMPERATURE; SENSITIVITY;

D O I：

10.1039/d0ma00389a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, the preparation of a Cu(0.8)Zn(0.2)Sb(2)AAm-polymer nanocomposite synthesized via a frontal polymerization technique is reported, together with its humidity sensing and photoconductive behaviour. The surface texture was examined using scanning electron microscopy (SEM) analysis. X-ray diffraction (XRD) and transmission electron microscopy (TEM) studies confirm the crystallinity of the as-fabricated nanocomposite thin film based sensing element. The surface area, particle size, optical absorbance, and thermal stability of the as-fabricated thin film were successively investigated using Brunauer-Emmett-Teller (BET) analysis, particle size analysis, ultra-violet absorption studies, Fourier-transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and differential scanning calorimetric (DSC) analysis. The humidity sensing characteristics were also investigated based on the capacitive performance of Cu(0.8)Zn(0.2)Sb(2)AAm film when exposed to moisture. The average sensitivity (S) of the as-fabricated sensor was found to be similar to 168.477 pF/% RH at an optimum frequency of 20 Hz. The sensor exhibited rapid response and recovery times of 4.6 s and 5.6 s, respectively, with persistent stability of 96% after 60 d. Thus, the Cu(0.8)Zn(0.2)Sb(2)AAm polymer-based capacitive humidity sensor shows its potential for reliable and safe use in the detection of humidity levels, as well as for photoconduction.

引用

页码：2804 / 2817

页数：14

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