Journal of Nanomedicine & Nanotechnology

Band-gap engineering in semiconducting nanomaterials: current progress and future prospective in opto-electronic applications

7^th International Conference on MATERIALS SCIENCE AND NANOTECHNOLOGY

December 05-06, 2022 | Dubai, UAE

Anju Anna Jacob

Emirates Aviation University, United Arab Emirates

Scientific Tracks Abstracts: J Nanomed Nanotechnol

Abstract:

Modern opto-electronic devices have advanced greatly owing to band gap engineering in semiconducting nanomaterials because it allows for independent and accurate control of charge carrier transport characteristics for specific applications. A diverse and growing range of parameters of these materials like size, shape and composition can modulate the band gaps and was demonstrated for a wide range of systems including 2D quantum wells, 1D nanowires and 0D quantum dots. Researchers have explored this very intensively and many different methods, including morphology variation, localized alloying, dual gates, liquid gates, thickness tuning, and heterojunction, have been used to achieve the required band gap tuning for a variety of applications, such as the realization of lasers, photovoltaic cells, bio-labelling, light emitting devices, solid state lighting, and flat panel displays. In order to develop more effective and functional semiconducting nanomaterials for different opto-electronic applications, major advancements in fundamental studies and practical applications of band gap engineering are anticipated in the future. In this context, the most recent developments and the outlook for this field of study are reviewed here. Additionally, the fabrication of photodetectors with band gap modified ZnO by cobalt doping in order to achieve detection in the near ultraviolet as well as visible regime is presented. It was possible to generate optical absorption that covered the entire visible spectrum, and the created photodetectors responded satisfactorily to all incident visible wavelengths.
Recent Publications :
1. Jacob AA, et al, (2022) Hybrid Renewable Power Generation for Modeling and Controlling the Battery Storage Photovoltaic System. International Journal of Photoenergy vol. 2022, Article ID 9491808: 1-12.
2. Jacob, A. A., Balakrishnan, L., Shambavi, K., & Alex, Z. C. (2017). Multi-band visible photoresponse study of Co 2+ doped ZnO nanoparticles. RSC advances, 7(63), 39657-39665
3. Jacob, A. A., Balakrishnan, L., Meher, S. R., Shambavi, K., & Alex, Z. C. (2017). Structural, optical and photodetection characteristics of Cd alloyed ZnO thin film by spin coating. Journal of Alloys and Compounds, 695: 3753-3759.

Biography :

Anju Anna Jacob is an assistant professor in School of Engineering at Emirates Aviation University, Dubai, UAE. She is an EASA CAR147 & GCAA CAR147 authorized Instructor. She has received her Doctoral degree in ‘Band Gap Engineering in Zinc Oxide and Fabrication of Visible Photodetectors’ with School of Electronics Engineering, Vellore Institute of Technology (VIT) in 2019. Preceding her PhD, she had completed Master degree (M.Tech) in Nanotechnology from VIT, India (2014). Her research vertical pertains to Nanotechnology, Semiconductors, Optoelectronics, Photovoltaics, Thin films. She works on making semiconducting nanomaterials and thin films, its characteristic study and fabrication of electronic devices like photo detectors, solar cells and gas sensors.