The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform

Billy J. Stanbery - One of the best experts on this subject based on the ideXlab platform.

  • Copper Indium Selenides and Related Materials for Photovoltaic Devices
    Critical Reviews in Solid State and Materials Sciences, 2002
    Co-Authors: Billy J. Stanbery
    Abstract:

    Solar cells based on Copper ternary chalcogenide compounds and alloys have emerged over the last 20 years as a promising solution to the problem of high-cost solar cells. Solar power conversion efficiencies exceed 21% in laboratory devices using thin films of these materials, and their characteristic thinness results in negligible direct materials costs per unit area compared with wafers. Photovoltaic devices made from these materials have also been shown to be intrinsically stable, circumventing the historical disadvantage of degradation typical of earlier thin film solar cell technologies. However, these Copper chalcogenide devices and materials are relatively complex. This article provides an overview of the current state of our scientific understanding and technological development of them.

R. Bacewicz - One of the best experts on this subject based on the ideXlab platform.

  • Rietveld refinement for CuInSe2 and CuIn3Se5
    Journal of Alloys and Compounds, 2003
    Co-Authors: W. Paszkowicz, R. Lewandowska, R. Bacewicz
    Abstract:

    Rietveld refinements for Copper Indium Selenides CuInSe2 and CuIn3Se5 and their mixture were performed using data collected at a Bragg–Brentano diffractometer. The values of lattice parameters, axial ratio and positional parameters are discussed and compared to available literature data for single crystals and polycrystals. Results for CuInSe2 give a0=5.78149(1) A and c0=11.61879(4) A. The positional parameter x is determined to be equal 0.2271(4). Refinements for CuIn3Se5 give an indication concerning the choice of a structural model for this compound. Namely, the best fit is obtained for a model based on I42m space group, yielding a composition close to the experimental one and the lattice parameters a0=5.75812(2) A and c0=11.53593(7) A. Parameters of this model are discussed.

W. Paszkowicz - One of the best experts on this subject based on the ideXlab platform.

  • Rietveld refinement for CuInSe2 and CuIn3Se5
    Journal of Alloys and Compounds, 2003
    Co-Authors: W. Paszkowicz, R. Lewandowska, R. Bacewicz
    Abstract:

    Rietveld refinements for Copper Indium Selenides CuInSe2 and CuIn3Se5 and their mixture were performed using data collected at a Bragg–Brentano diffractometer. The values of lattice parameters, axial ratio and positional parameters are discussed and compared to available literature data for single crystals and polycrystals. Results for CuInSe2 give a0=5.78149(1) A and c0=11.61879(4) A. The positional parameter x is determined to be equal 0.2271(4). Refinements for CuIn3Se5 give an indication concerning the choice of a structural model for this compound. Namely, the best fit is obtained for a model based on I42m space group, yielding a composition close to the experimental one and the lattice parameters a0=5.75812(2) A and c0=11.53593(7) A. Parameters of this model are discussed.

R. Lewandowska - One of the best experts on this subject based on the ideXlab platform.

  • Rietveld refinement for CuInSe2 and CuIn3Se5
    Journal of Alloys and Compounds, 2003
    Co-Authors: W. Paszkowicz, R. Lewandowska, R. Bacewicz
    Abstract:

    Rietveld refinements for Copper Indium Selenides CuInSe2 and CuIn3Se5 and their mixture were performed using data collected at a Bragg–Brentano diffractometer. The values of lattice parameters, axial ratio and positional parameters are discussed and compared to available literature data for single crystals and polycrystals. Results for CuInSe2 give a0=5.78149(1) A and c0=11.61879(4) A. The positional parameter x is determined to be equal 0.2271(4). Refinements for CuIn3Se5 give an indication concerning the choice of a structural model for this compound. Namely, the best fit is obtained for a model based on I42m space group, yielding a composition close to the experimental one and the lattice parameters a0=5.75812(2) A and c0=11.53593(7) A. Parameters of this model are discussed.