2 publications

• Published Subscription 17 Jan 2017

  Analysis of Efficiency Loss in AlGaAs/GaAs Hetero-junction Solar Cell

  By Sadi M. Jawad Ahsan, Adnan Siraj Rakin

  Abstract: Energy conversion efficiency is a major issue for photovoltaic cells. One of the main challenges of modern day research is to improve the efficiency level of photovoltaic devices by introducing new materials and advanced concepts. The target is to reach a high efficiency level within affordable cost, which will lead to a mass generation of electricity using photovoltaic devices. III-V hetero-junction solar cell has been introduced and characterized here, which …

  Published in Journal of Energy, Environment & Carbon Credits · Vol. 6, Issue 3, 2016 · pp. 26–33 Read article →

• Published Subscription 8 Dec 2016

  Developing an Emperical Equation for the Diameter of DWNT and RBM Frequency of RRS

  By Adnan Siraj Rakin

  Abstract: Many experiments of resonant Raman spectroscopy have been carried out to successfully assign the radial breathing mode frequency of the inner and outer tube of double walled carbon nanotube. Experimental values show clear indication that these frequencies depend heavily on inter tube interaction. All the previous efforts to establish a relation between RBM frequency and diameter have not taken the inter-tube distance factor into account. Here, for the first time …

  Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 3, 2016 · pp. 23–26 Read article →