Structural and electrical properties of cashew gum thin film deposited by spray pyrolysis

Biopolymers obtained from renewable resources became the center of public interest by virtue of their environmental and commercial advantages. Natural polymers such as starch, almond gum, chitosan and arabic gum were investigated to get fully or partially biodegradable dielectric material. Thus, in this article we study the material properties of cashew gum. This biopolymer is an exudate collected from occidental anacardium tree. For this investigation, scanning electron microscopy of powder and thin film cashew gum showed homogenous and slightly rough surface morphology with visible wrinkles. The thermal analyses such as thermogravimetric (TGA) and differential scanning calorimeter were realized. thermogravimetric thermogram shows two distinct stages of decomposition. The first around 150°C is attributed to moisture evaporation with loss in weight of 9.7%. The second transition, between 255°C and 330°C, is related to the decomposition of cashew gum with loss in weight of 50%. UV-visible spectra of the cashew gum thin film show a low absorbance and high transmittance. For this material, we obtained a direct optical band gap around 4.56 eV. In addition, the dielectric and electrical characterizations lead to conclude that cashew gum may be interesting for transistor applications as a gate dielectric.

[1]  X. Gong,et al.  Biocompatible and breathable healthcare electronics with sensing performances and photothermal antibacterial effect for motion-detecting , 2022, npj Flexible Electronics.

[2]  Yue Cui,et al.  Materials and Biomedical Applications of Implantable Electronic Devices , 2022, Advanced Materials Technologies.

[3]  Abdoulaye Tall,et al.  Khaya gum – a natural and eco-friendly biopolymer dielectric for low-cost organic field-effect transistors (OFETs) , 2022, Journal of Materials Science: Materials in Electronics.

[4]  M. Erouel,et al.  Influence of silver doping on physical properties of sprayed In2S3 films for solar cells application , 2021, Journal of Materials Science: Materials in Electronics.

[5]  M. Erouel,et al.  Organic FETs using biodegradable almond gum as gate dielectric: A promising way towards green electronics , 2020, Organic Electronics.

[6]  Qian Liu,et al.  Biodegradable Materials and Green Processing for Green Electronics , 2020, Advanced materials.

[7]  D. Amorim,et al.  Effect of temperature on the electrical conductivity of polyaniline/cashew gum blends , 2020 .

[8]  M. Erouel,et al.  Low voltage organic transistors with water-processed gum arabic dielectric , 2020 .

[9]  H. Belmabrouk,et al.  Study of conduction mechanism, electrical property, and nonlinear electrical behaviors of Ba0.97Bi0.02Ti0.9Zr0.05Nb0.04O3 perovskite , 2020, Journal of Materials Science: Materials in Electronics.

[10]  S. Hajra,et al.  Dielectric, conductivity and ferroelectric properties of lead-free electronic ceramic:0.6Bi(Fe0.98Ga0.02)O3-0.4BaTiO3 , 2019, Heliyon.

[11]  K. Khirouni,et al.  Structural and dielectric properties of BaTi0.5 (Co0.33 Mo0.17) O3 perovskite ceramic , 2019, Journal of Alloys and Compounds.

[12]  K. Khirouni,et al.  Investigation of electrical behavior and dielectric properties in polycristalline Pr0.8Sr0.2MnO3 manganite perovskite , 2018, Materials Research Bulletin.

[13]  K. Khirouni,et al.  Structural, electrical and dielectric properties of Bi-doped Pr0.8-xBixSr0.2MnO3 manganite oxides prepared by sol-gel process , 2017 .

[14]  B. Sarmento,et al.  Synthesis and characterization of non-toxic and thermo-sensitive poly(N-isopropylacrylamide)-grafted cashew gum nanoparticles as a potential epirubicin delivery matrix. , 2016, Carbohydrate polymers.

[15]  S. Haripriya,et al.  Assessment of physical and structural characteristics of almond gum. , 2016, International journal of biological macromolecules.

[16]  M. Adikwu,et al.  Thermochemical Properties of Hydrophilic Polymers from Cashew and Khaya Exudates and Their Implications on Drug Delivery , 2016, Journal of drug delivery.

[17]  M. Gargouri,et al.  The investigation of dielectric properties and ac conductivity of new ceramic diphosphate Ag 0.6 Na 0.4 FeP 2 O 7 using impedance spectroscopy method , 2016 .

[18]  M. Bonn,et al.  Probing the charge separation process on In2S3/Pt-TiO2 nanocomposites for boosted visible-light photocatalytic hydrogen production , 2016, 1608.02804.

[19]  M. Ramesan,et al.  Studies on Electrical, Thermal and Corrosion Behaviour of Cashew Tree Gum Grafted Poly(Acrylamide) , 2016 .

[20]  M. Ramesan,et al.  Synthesis, characterization, and properties of cashew gum graft poly (acrylamide)/magnetite nanocomposites , 2016 .

[21]  Toshio Yoshimura,et al.  Preparation and Characterization of Biodegradable Hydrogels Based on Ulvan, a Polysaccharide from Green Seaweeds , 2016 .

[22]  M. Roy,et al.  Preparation, characterization and electrical study of gum arabic/ZnO nanocomposites , 2015, Bulletin of Materials Science.

[23]  L. Costa,et al.  AC and DC electrical conductivity in natural rubber/nanofibrillated cellulose nanocomposites , 2015 .

[24]  M. Cristianini,et al.  Evaluation of cashew tree gum (Anacardium occidentale L.) emulsifying properties , 2014 .

[25]  A. Chandra bose,et al.  Dielectric relaxation behavior and electrical conduction mechanism in polymer-ceramic composites based on Sr modified Barium Zirconium Titanate ceramic , 2012, Journal of Polymer Research.

[26]  Rajiv Ranjan,et al.  Impedance and electric modulus analysis of Sm-modified Pb(Zr0.55Ti0.45)1−x/4O3 ceramics , 2011 .

[27]  A. Arof,et al.  Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte , 2009 .

[28]  A. Srivastava,et al.  Modification of guar gum through grafting of 4-vinyl pyridine using potassium peroxymonosulphate/ ascorbic acid redox pair , 2007 .

[29]  J. Petzelt,et al.  Dielectric relaxation in tetragonal tungsten bronze ceramics , 2003 .

[30]  R. Choudhary,et al.  Structural, dielectric and electrical conducting properties of CsB′B′′O6 (B′=Nb, Ta; B′′=W, Mo) ceramics , 2002 .

[31]  M. A. Rao,et al.  Thermal behavior of gum arabic in comparison with cashew gum , 2000 .

[32]  A. K. Jonscher,et al.  The ‘universal’ dielectric response , 1977, Nature.

[33]  J. S. Chae,et al.  Electrode materials for biomedical patchable and implantable energy storage devices , 2020 .

[34]  Ashis Bhattacharjee,et al.  Characterization of dielectric properties of developed CdS‐gum arabic composites in low frequency region , 2016 .

[35]  E. Lacaze,et al.  Thickness Effect on Properties of Sprayed In2S3 Films for Photovoltaic Applications , 2015, Journal of Electronic Materials.

[36]  R. Choudhary,et al.  Structural and electrical properties of Ca2+-modified PZT electroceramics , 2007 .

[37]  N. Mott,et al.  Electronic Processes In Non-Crystalline Materials , 1940 .