Preferences help
enabled [disable] Abstract
Number of results
2018 | 96 | 134-148
Article title

Metal-titanium oxide / quantum dot porous silicon / silicon-metal solar cell

Title variants
Languages of publication
In this paper, the nanocrystalline porous silicon (PSi) films are prepared by electrochemical etching of p-type silicon wafer with current density 7 mA/cm2 and etching times on the formation nano-sized pore array with a dimension of around different etching time. The films were characterized by the measurement of XRD, FTIR spectroscopy and atomic force microscopy properties (AFM). We have estimated crystallites size from X-Ray diffraction about nanoscale for porous silicon and Atomic Force microscopy confirms the nanometric size Chemical fictionalization during the electrochemical etching show on the surface chemical composition of PS. The etching possesses inhomogeneous microstructures that contain a-Si clusters (Si3–Si–H) dispersed in amorphous silica matrix. From the FTIR analyses showed that the Si dangling bonds of the as-prepared PS layer have large amount of Hydrogen to form weak Si–H bonds. The atomic force microscopy investigation shows the rough silicon surface, with increasing etching process (current density and etching time) porous structure nucleates which leads to an increase in the depth and width (diameter) of surface pits. Consequently, the surface roughness also increase.
Physical description
  • Physics Department, Science College, Mustansiriyah University, Baghdad, Iraq
  • Physics Department, Education College, Mustansiriyah University, Baghdad, Iraq
  • Physics Department, Education College, Mustansiriyah University, Baghdad, Iraq
  • Physics Department, Education College, Mustansiriyah University, Baghdad, Iraq
  • [1] A. Uhlir, Bell Syst. Tech. J. 1956, 35, 333.
  • [2] R. S. Dubey, Electrochemical Fabrication of Porous Silicon Structures for Solar Cells, p. 36-40, (2013).
  • [3] M. H. Mohsin and A. A. Salman, Eng. Technol. J. 33 (2015) 1513.
  • [4] Asmiet Ramizy, Z. Hassan, Khalid Omar. 2011. Porous silicon nanowires fabricated by electrochemical and laser-induced etching, Mater Sci: Mater Electron, 22, pp. 717–723. DOI 10.1007/s10854-010-0199-3.
  • [5] C. Pickering, M. I. J. Beale, D. J. Robbins, P. J. Pearson, R. Greef, J. Phys. C: Solid State Phys. 1984, 17, 6535-6552
  • [6] R. T. Collins, P. M. Fauchet, M. A. Tischler, Phys. Today 1997, 50, 24–31
  • [7] J. M. Lauerhaas, G. M. Credo, J. L. Heinrich, M. J. Sailor, J. Am.Chem. Soc. 1992, 114, 1911-1912.
  • [8] A. Rohatgi, E. R. Weber, L. C. Kimberling, J. Electron. Mater. 1993, 22, 65.
  • [9] A. Loni, L. T. Canham, M. G. Berger, R. Arens-Fischer, H. Munder,H. Luth, H. F. Arrand, T. M. Benson, Thin Solid Films 1996, 276, 143-146.
  • [10] S. Hilbrich, R. Arens-Fischer, L. Kupper, W. Theiss, M. G. Berger, M.Kruger, M. Thonissen, Thin Solid Films 1997, 297, 250-253.
  • [11] A. Janshoff, K.-P. Dancil, C. Steinem, D. P. Greiner, V. S.-Y. Lin, C.Gurtner, K. Motesharei, M. J. Sailor, M. R. Ghadiri, J. Am. Chem. Soc. 1998, 120, 12108-12116
  • [12] Asmiet Ramizya, Z. Hassana, Khalid Omara, Y. Al-Dourib, M.A. Mahdia, New optical features to enhance solar cell performance based on porous silicon surfaces, Applied Surface Science 257 (2011) 6112–6117
  • [13] O. A. Abbas, K. A. Noman, A. H. Rahim, Effect of Different Etching Parameters on Resistivity of Silicon Nano-Material, Journal of Kufa – Physics, Vol. 1, No. 2, pp. 100-107, (2009).
  • [14] N. Janene, A. Hajjaji, M. Ben Rabha, M. A. El Khakani, B. Bessais, M. Gaid, Influence of porous Si passivation layer and TiO2 coating on optoelectronic properties of multicrystalline Si substrate, Physica Status Solidi C, pp. 1–4, (2012).
  • [15] Brady, John B., and Boardman, Shelby J., 1995, Introducing Mineralogy Students to X-ray Diffraction Through Optical Diffraction Experiments Using Lasers. Jour. Geol. Education, v. 43 #5, 471-476.
  • [16] Binnig, G.; Quate, C. F.; Gerber, C. (1986). Atomic Force Microscope. Physical Review Letters 56: 930–933.
  • [17] Griffiths, P.; de Hasseth, J. A. (18 May 2007). Fourier Transform Infrared Spectrometry. 2nd Ed. Wiley-Blackwell. ISBN 0-471-19404-2.
  • [18] U. M. Nayef, Fabrication and Characteristics of Porous Silicon for Photoconversion, International Journal of Basic and Applied Sciences Vol. 13, No: 02, (2013).
  • [19] L. Russo, F. Colangelo, R. Cioffi, I. Rea and L. De Stefano, A Mechanochemical Approach to Porous Silicon Nanoparticles Fabrication, Materials, 1023-1033, (2011).
  • [20] H. A. MaCleod, Thin Film Optical Fillers, 3rd Ed, Taylor and Francis, (2001).
  • [21] R. Karimzadeh, N. Mansour, The Effect of Concentration on The Thermo Optical Properties of Colloidal Ag Nanoparticles, Optics and Laser Technology, 42 (2010) 783.
  • [22] N. Semaltianos, S. Logothetidis, W. Perrie, S. Romani, R. Potter, et al., CdTe Nanoparticles Synthesized by Laser Ablation, Applied Physics Let. 95 (2009).
  • [23] Dr.Uday M. Nayef and A. H. Jaafar, Characteristics of Nanostructure Porous Silicon Prepared by Anodization Technique, Eng. And Tech. Journal Vol. 31, No. 3, (2013).
  • [24] H. A. Lopez, Porous silicon nanocomposites for optoelectronic and telecommunications applications, PhD thesis, University of Rochester, New York, (2001).
  • [25] Ahmed N. Abd, Improved photoresponse of porous silicon photodetectors by embedding CdS nanoparticles. World Scientific News 19 (2015) 32-49.
  • [26] Uday Muhsin Nayef and Intisar Mohammed Khudhair, Sensitivity of gold nanoparticles doped in porous silicon. Iraqi Journal of Physics, 2017, Vol. 15, No. 35, pp. 1-7.
  • [27] Wasna'a M. Abdulridha, Ahmed N. Abd, Mohammed O. Dawood. Theoretical model to determine the Porosity and refractive index of porous silicon type-n by using Atomic force microscope, World Scientific News 28 (2016) 58-69.
  • [28] Meidan Ye, Miaoqiang Lv, Chang Chen, James Iocozzia, Changjian Lin and Zhiqun Lin. Design, Fabrication, and Modification of Cost-Effective Nanostructured TiO2 for Solar Energy Applications. Low-cost Nanomaterials, Green Energy and Technology, Verlag London 2014, 10.1007/978-1-4471-6473-9_2
  • [29] X. Lu, J. Hou, M. Xiang, Z. Jia and F. Zhong, Preparation and photoluminescence of TiO2/PS composite system, Chinese Optics Letters, Vol. 8, No. 6, pp. 618-620, (2010).
Document Type
Publication order reference
YADDA identifier
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.