American Journal of Nanosciences

Volume 7, Issue 1, March 2021

  • Dielectric and Mechanical Properties of Local Commercial Single Walled Carbon Nanotubes for Medical Applications: A Practical Approach

    Moustafa Hussein Moustafa

    Issue: Volume 7, Issue 1, March 2021
    Pages: 1-5
    Received: Dec. 10, 2020
    Accepted: Dec. 17, 2020
    Published: Jan. 22, 2021
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    Abstract: Owing to their exceptional electrical and mechanical properties, low weights and availability of their synthesis and purification carbon nanotubes (CNTs) became the focus of scientists in many medical and electronic applications, and reinforcement of various materials. A close understanding of structure-properties of (CNTs) will be necessary for the... Show More
  • Structural, Morphological and Optical Properties of Spray Deposited Multi-doped (Ba, Sr, Mn, Fe and Ni) Compositionally Complex ZnO Thin Films

    Mohammad Rahat Al Hassan, Aungkan Sen, Mohammad Khalid Hasan, Mohammad Abdul Matin

    Issue: Volume 7, Issue 1, March 2021
    Pages: 6-14
    Received: Dec. 21, 2020
    Accepted: Dec. 31, 2020
    Published: Jan. 28, 2021
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    Abstract: Configurational disorder due to high level multi element doping has gained huge attention from research community because of its possibility of unique phase stability as well as unusual functional properties. Based on this context extensive researches performed in recent decades to establish a new horizon of materials i.e. high entropy alloy and ce... Show More
  • Nanoindentation Induced Elastic-plastic Deformation of GaN Nanomembrane on a Sapphire Substrate

    Maha Khayyat, Eric Bourhis, Rami Elafandy, Tienkhee Ng, Boon Ooi

    Issue: Volume 7, Issue 1, March 2021
    Pages: 15-22
    Received: Jan. 04, 2021
    Accepted: Jan. 19, 2021
    Published: Jan. 28, 2021
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    Abstract: One of the main challenges of the production of a blue laser is the preparation of defect-free GaN layers. It is of high tehnological interest to characterize GaN nanomembrane mechanically for further advanced applications. The current study addresses the impact of applied stresses on GaN nanomembranes, which are placed on sapphire the substrates, ... Show More
  • Obtained Carbon Nano-onions from Underwater Arc Discharge Without the Complex Purification Procedures

    Salih Mohamed Osman, Asma Mohamed Elhussein, Fatma Osman Mahmoud, Mohammed Bilal Sabahelkher, Lorenzo Caputi, Andrea Scarcello, Francesca Alessandro

    Issue: Volume 7, Issue 1, March 2021
    Pages: 23-27
    Received: Jan. 12, 2021
    Accepted: Feb. 03, 2021
    Published: Feb. 23, 2021
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    Abstract: Carbon nano-onions (CNOs), which consist of concentric graphitic shells, currently attract much attention because of their unique structural and physical properties, which are different from the properties of the other carbon nanomaterials such as fullerenes, graphene, and carbon nanotubes (CNTs). Due to their small size, the large external surface... Show More
  • Optical Band Energy, Urbach Energy and Associated Band Tails of Nano Crystalline TiO2 Films at Different Annealing Rates

    Geoffrey Gitonga Riungu, Simon Waweru Mugo, James Mbiyu Ngaruiya, Gitonga Mbae John, Nelson Mugambi

    Issue: Volume 7, Issue 1, March 2021
    Pages: 28-34
    Received: Jan. 24, 2021
    Accepted: Feb. 25, 2021
    Published: Mar. 09, 2021
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    Abstract: Increase in world population has led to more energy demand. Therefore, there is need for utilization of green and renewable energy. Dye sensitized solar cells (DSSCs) based on TiO2 have attracted a lot of attention as an alternative source as compared to current silicon technology. In this study, TiO2 thin films were deposited on doped fluorine tin... Show More