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FACULTY

Dr. Ashith V K Assistant Professor

School of Applied Sciences

Dr. Ashith V K

Specialization

Experimental condensed Matter Physics, Thin films, Nanomaterials.

Programs Organised

Qualification

Ph.D.

Passing Year

2020

Teaching Experience

9 Years

Awards & Recognition

  1. Publication and Research Award Incentive for Students to Excel (PRAISE) award from Manipal Academy of Higher Education in 2017 & 2019.

Publications In Refereed Journals

  1. Ashith V K, Priya K and Gowrish Rao K, Effect of thickness on structural, electrical and spectral response properties of thermal evaporated CdTe films, Indian Journal of Physics, 2022. https://doi.org/10.1007/s12648-022-02472-3
  2. Ashith V K, Priya K and Gowrish Rao K, The electrical properties of n-CdS/p-CdTe and n-ZnS/p-CdTe heterojunctions fabricated by a combination of SILAR and vacuum deposition techniques, Physica B: Physics of Condensed Matter, Vol. 614, pp. 413025-413031, 2021 https://doi.org/10.1016/j.physb.2021.413025
  3. Ashith V K and E Deepak D Silva, Influence of Concentration and Annealing Temperature on Spin Coated Metal Oxide Thin Films for Optoelectronic Devices, Journal of Materials Sci-ence: Materials in Electronics, Vol. 32, pp. 10028-10048, 2021. https://doi.org/10.1007/s10854-021-05662-7
  4. Ashith V K, Priya K, Muhammed Ali A V, Rashmitha Keshav, G K Rao and Mahesha M G, The effects of Zn incorporation on electrical, photoluminescence and spectral sensitivity of SILAR deposited CdS thin films, Materials Research Express, Vol. 7, pp. 026404-026416, 2020. https://iopscience.iop.org/article/10.1088/2053-1591/ab5ec4
  5. K Priya, Gowrish K Rao, V K Ashith, Ganesh Sanjeev, Vijay Pal Verma, Vikash Chandra Petwal, and Jishnu Dwivedi, The effect of 8 MeV electron beam irradiation on the structural, optical and photoluminescence properties of ZnS thin films, Ceramics International, Vol. 45, pp. 2576-2583, 2019. https://doi.org/10.1016/j.ceramint.2018.10.188
  6. Gowrish K Rao, V K Ashith, K Priya and Pawan Kumar, Effect of bismuth nanoparticle in-corporation on the characteristics of p-ZnTe/n-CdS thin film light sensors, Sensors and Actua-tors A: Physical, Vol. 284, pp. 194–200, 2018. https://doi.org/10.1016/j.sna.2018.10.030
  7. V K Ashith, Gowrish K. Rao, Smitha R and Sahana N. Moger, Study of micro-structural, op-tical and electrical properties of TiO2 films obtained from micro-controller based SILAR method, Ceramics International, Vol. 44, pp. 17623-17629, 2018. https://doi.org/10.1016/j.ceramint.2018.06.223
  8. V K Ashith and K Gowrish Rao, Analysis of microstructural properties, energy band struc-ture, and defect levels of ZnS films obtained from micro-controlled SILAR method, Surface and Interface Analysis, Vol. 50, pp. 1286-1295, 2018. https://doi.org/10.1002/sia.6520
  9. V K Ashith, Gowrish K Rao, Sahana N Moger and Smitha R, Effect of post-deposition an-nealing on the properties of ZnO films obtained by high temperature, micro-controller based SILAR deposition, Ceramics International, Vol. 44, pp. 10669-10676, 2018. https://doi.org/10.1016/j.ceramint.2018.03.097
  10. K Priya, V K Ashith, Gowrish K Rao and Ganesh Sanjeev, A comparative study of structural, optical and electrical properties of ZnS thin films obtained by thermal evaporation and SILAR techniques, Ceramics International, Vol. 43, pp. 10487-10493, 2017. https://doi.org/10.1016/j.ceramint.2017.05.094
  11. Ashith VK and Gowrish K Rao, Bandgap tailoring in CdxZn1-xS alloy films deposited by Successive ionic layer adsorption and reaction, Thin Solid Films, Vol. 626, pp. 1-8, 2017. https://doi.org/10.1016/j.tsf.2017.02.020
  12. V K Ashith and K Gowrish Rao, A study of microstructural properties and quantum size ef-fect in SILAR deposited nano-crystalline CdS thin films, Thin Solid Films, Vol. 616, pp. 197-203, 2016. https://doi.org/10.1016/j.ceramint.2018.06.223
  13. K Gowrish Rao and V K Ashith, Influence of deposition parameters on the structural and op-tical properties of CdS thin films obtained by micro-controlled SILAR deposition, Journal of Physics and Chemistry of Solids, Vol. 7, pp. 14-22, 2015. https://doi.org/10.1016/j.jpcs.2014.09.008 
Other Publications:
  1. Naveen D Souza N, Harshal Jason D Souza, Ashith V K, E Deepak D’Silva, Influence of Preparation Time on Chemical Bath Deposited Alumina (Al2O3) Thin Films, Materials           Today: Proceedings, 2023. https://doi.org/10.1016/j.matpr.2023.02.408
  2. Ashith V K and Gowrish Rao K, Effect of composition on SILAR deposited CdxZn1-xS thin films, AIP Conference Proceedings, Vol. 1942, pp. 080008-080011, 2018. https://doi.org/10.1063/1.5028842
  3. Ashith V K and K Gowrish Rao, “Structural and Optical Properties of ZnS Thin Films by SILAR Technique obtained by acetate Precursor”, IOP Conference Series:  Materials Sci-ence and Engineering, Vol. 360, pp. 012058-012064, 2018. https://iopscience.iop.org/article/10.1088/1757-899X/360/1/012058 



Research Project

Research Summary:
The device properties of the SILAR deposited cadmium sulphide (CdS), Zinc sulphide (ZnS), Zinc Oxide (ZnO), titanium dioxide (TiO2) and cadmium zinc sulphide (CdxZn1-xS) have been investigated in detail. The CdS/CdTe and ZnS/CdTe heterojunctions have been fabricated with the combination of SILAR and Thermal evaporation. 
In the post PhD work, the structural, optical and electrical properties of spin coated and chemical bath deposited metal doped semiconductors have been analysed for optoelectronic devices

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