Design and development of ZnO based device for biosensing applications

Sapthami Hegde, Bhavana Anchan, Saritha U. Kamath, Sudarshan Kini, Shounak De, Ajeetkumar Patil

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Zinc oxide is a preferred choice for several optoelectronic applications owing to their unique properties, such as wider band gaps combined with high exciton binding energies. A zinc oxide thin film was grown on glass substrates through sol-gel depositing method followed by heat treatments. We prepared the zinc oxide thin films using zinc acetate dihydrate, 2-methoxy ethanol and diethanolamine as zinc alkoxide precursor, solvent and sol stabilizer respectively. Structural and optical characterizations were carried out that included X-ray diffraction, Atomic force microscopy, Profilometry and UV-Visible spectrophotometry. A coplanar configuration of device has been chosen where the structure has Zinc oxide thin film on which metal contacts of 100 nm thickness were deposited onto the films via thermal evaporation. A two probe source meter was used for I-V measurements in dark environment. I-V measurements have been done for various concentrations of biomolecules (Vitamin B6). It is found that there are variations in current for increasing concentrations.

Original languageEnglish
Title of host publicationSeventh International Conference on Optical and Photonic Engineering, icOPEN 2019
EditorsAnand Asundi, Qian Kemao
PublisherSPIE
ISBN (Electronic)9781510631595
DOIs
Publication statusPublished - 01-01-2019
Event7th International Conference on Optical and Photonic Engineering, icOPEN 2019 - Phuket, Thailand
Duration: 16-07-201920-07-2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11205
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference7th International Conference on Optical and Photonic Engineering, icOPEN 2019
CountryThailand
CityPhuket
Period16-07-1920-07-19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Hegde, S., Anchan, B., Kamath, S. U., Kini, S., De, S., & Patil, A. (2019). Design and development of ZnO based device for biosensing applications. In A. Asundi, & Q. Kemao (Eds.), Seventh International Conference on Optical and Photonic Engineering, icOPEN 2019 [112052A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11205). SPIE. https://doi.org/10.1117/12.2551081