Investigation of Electrical and Thermoelectric Properties of ZnO/rGO Composites Prepared by Conventional Solid-state Reaction Method
| Authors | Suraj Mangavati1, Ashok Rao1 , Dheeraj Devadiga2, M. Selvakumar2, Monika Saxena3, G.S. Okram3 |
| Affiliations |
1Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India 2Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India 3UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, 452017 Indore, India |
| Е-mail | ashokanu_rao@rediffmail.com |
| Issue | Volume 13, Year 2021, Number 1 |
| Dates | Received 12 January 2021; revised manuscript received 18 February 2021; published online 25 February 2021 |
| Citation | Suraj Mangavati, Ashok Rao, et al., J. Nano- Electron. Phys. 13 No 1, 01026 (2021) |
| DOI | https://doi.org/10.21272/jnep.13(1).01026 |
| PACS Number(s) | 61. 05.Cp, 62.23.Pq, 72. 15.Eb, 72.15.Jf |
| Keywords | Electrical resistivity (5) , Mobility (10) , Activation energy (7) , Thermopower (2) , Low temperature (3) . |
| Annotation |
ZnO/rGO composites are prepared by the conventional solid-state reaction method. Structural properties of prepared compounds were studied using XRD technique and it is observed that all the samples are crystallized in wurtzite structure. Electrical resistivity measurements were carried out using four probe method employing a closed cycle refrigerator. With addition of rGO, colossal reduction in the resistivity is observed which is about three orders of magnitude smaller than that of the pure sample of ZnO. Room temperature Hall measurements were performed to estimate the bulk concentration and results show that addition of rGO into ZnO matrix enhances the number of charge carriers. Thermopower measurements were carried out using differential dc method and a large reduction in Seebeck coefficient is observed. |
|
List of References |
Other articles from this number
1) Photocatalytic Properties of Sn-doped TiO2 [01001-1-01001-5]2) Photon Flux Density in the Diffraction Pattern During Scattering of H-polarized Photons by the Infinite Grating of Metallic Strips [01002-1-01002-4]
3) Development of Epoxy-polyester Nanocomposite Materials with Improved Physical and Mechanical Properties for Increasing Transport Vehicle Reliability [01003-1-01003-5]
4) Influence of Mn2+ Magnetic Ions on the Properties of Cd1 – xMnxS Thin Films Synthesized by Chemical Bath Deposition [01004-1-01004-5]
5) Influence of Tunable Work Function on SOI-based DMG Multi-channel Junctionless Thin Film Transistor [01005-1-01005-4]
6) Environment-Friendly Synthesis of Undoped and Cu doped ZnO Nanoparticles and Study of their Optical Absorption Properties towards Biological Applications [01006-1-01006-3]
7) A Theoretical Survey on the Potential Performance of a Perovskite Solar Cell Based on an Ultrathin Organic-Inorganic Electron Transporting Layer [01007-1-01007-6]
8) Structural, Elastic and Thermodynamic Properties of ScP Compound: DFT Study [01008-1-01008-5]
9) Synthesis and Characterization of ZnO Thin Film for Modeling the Effect of Its Defects on ZnO/Cu2O Solar Cell EQE [01009-1-01009-6]
10) Behavior of the Aviation Engine Control System During the Transition to the Lorenz Attractor [01010-1-01010-5]
11) First Principle Study and Optimal Doping for High Thermoelectric Performance of TaXSn Materials (X = Co, Ir and Rh) [01011-1-01011-7]
12) Simulation of Parameters of Coaxial Solar Cells Based on Si and InP Nanowires [01012-1-01012-5]
13) Lattice Dynamic and Thermophysical Properties of AlSi (Silumine) Alloy: A DFT Study [01013-1-01013-6]
14) Green Synthesis of Copper Oxide Nanoparticles from Catharanthus Roseus Plant Leaf Extract and Its Investigation [01014-1-01014-5]
15) Design of Microstrip Patch Antenna Based on FSS for 5G and Wimax Applications [01015-1-01015-4]
16) Analysis of CSRR Based Circular Patch Monopole Antenna for Ku-band Satellite Communication Applications, C-band and X-band Applications [01016-1-01016-5]
17) Single Electron Transistor Based Current Mirror: Modelling and Performance Characterization [01017-1-01017-5]
18) Growth of Gold Nanostructures on the MoS2 Surface Modified with Polyvinylpyrrolidone [01018-1-01018-4]
19) Layered Crystals as Porous Materials: the Effect of Ultrasonic Treatment [01019-1-01019-5]
20) Structural-Phase State and Magnetotransport Properties of Thin Film Alloys Based on Permalloy and Copper [01020-1-01020-6]
21) Effect of Trench Isolation on the Self-heating Phenomenon in Advanced Radio Frequency SiGe Heterojunction Bipolar Transistor [01021-1-01021-5]
22) Extremely Short Optical Pulses in a Photonic Crystal Made of Carbon Nanotubes [01022-1-01022-4]
23) Optical Properties of CuS Nanoparticles Embedded Polyvinyl Alcohol (PVA) Films [01023-1-01023-4]
24) Theoretical Study of Photo-Luminescence Emission Using the Line Shape Function for Semiconductor Quantum Dots [01024-1-01024-4]
25) Chemical Approach Based ZnS-ZnO Nanocomposite Synthesis and Assessment of their Structural, Morphological and Photocatalytic Properties [01025-1-01025-4]
26) Synthesis and Characterization of Multiwalled Carbon Nanotubes (MWCNTs) Dispersed ZnS Based Photocatalytic Activity [01027-1-01027-4]
27) Magnetic Properties of Ni Thin Films Deposited on to Polystyrene Nanospheres [01028-1-01028-4]
28) Influence of Impurity on the Properties of Chemically Synthesized Calcium Hydroxide [01029-1-01029-5]
29) Effect of Heat Treatment on Band Gap of V2O5 [01030-1-01030-5]
30) In-situ Synthesis of Mixed Vanadium (IV and V) Oxides/Reduced Graphene Oxide Using Centella asiatica Extract [01031-11-01031-3]
