Journal of Photonic Materials and Technology

Volume 5, Issue 1, June 2019

  • Structural and Optical Property of High Quality GaN Thin Film on Si with ZnO Buffer Layer

    Jianting He, Shulian Yang, Qinqin Wei

    Issue: Volume 5, Issue 1, June 2019
    Pages: 1-4
    Received: 29 January 2019
    Accepted: 17 March 2019
    Published: 8 April 2019
    Abstract: A method was applied to improve the crystallization quality of GaN. ZnO thin films were deposited on n-Si (111) at 600°C by pulsed laser deposition (PLD), and GaN thin films were grown on Si or ZnO/ Si by R. F. magnetron sputtering system. Several GaN films were prepared with ZnO as buffer layer without annealing, with ZnO as buffer layer annealed ... Show More
  • Effect of Thickness and Composition Ratio of Poly(3-Hexylthiophene) and [6,6]-Phenyl C60-Butyric Acid Methyl Ester Thin Film on Optical Absorption for Organic Solar Cell Fabrication

    Sunday Wilson Balogun, Yekini Kolawole Sanusi

    Issue: Volume 5, Issue 1, June 2019
    Pages: 5-10
    Received: 21 February 2019
    Accepted: 4 April 2019
    Published: 6 May 2019
    Abstract: A Blend of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C60-butyric acid methyl ester (PCBM), a fullerene derivate based donor-acceptor copolymer, is one of the widely used organic solar cell materials for photon-electron conversion. Thin films were developed, characterized, and optimized for optical absorbance. Absorption spectra were measured u... Show More
  • Laser-Induced Fluorescence of Wet Porous Silicon as Laser-Induced Fluorescence of H3O+

    Yuri Pivovarenko

    Issue: Volume 5, Issue 1, June 2019
    Pages: 11-15
    Received: 7 March 2019
    Accepted: 12 April 2019
    Published: 20 May 2019
    Abstract: Typically, the production of porous silicon is an electrochemical etching of monocrystalline silicon wafers, which are connected to the anode, in ethanol-aqueous HF solutions. In the process of etching, it turns out porous silicon, which is saturated with water, which is rich in protonated molecules H3O+, formed as a result of a number of well-know... Show More
  • Light Dispersion in Diamond-like Crystals

    Vladimir Rumyantsev

    Issue: Volume 5, Issue 1, June 2019
    Pages: 16-23
    Received: 2 May 2019
    Accepted: 3 June 2019
    Published: 18 June 2019
    Abstract: Dispersion of light in diamond-like crystals is investigated. Dispersion laws of exciton polaritons in this structures, which (apart from the diamond itself) include silicon and germanium is obtained within the quasi-molecular model of valent crystals. Dispersion curves point to the fact that in the vicinity of exciton resonance under small damping... Show More