Progress in Photovoltaics: Research and Applications

Cover image for Progress in Photovoltaics: Research and Applications

January 2010

Volume 18, Issue 1

Pages 1–77

  1. Research Articles

    1. Top of page
    2. Research Articles
    3. Research: Short Communication: Accelerated Publications
    4. Research: Short Communications
    5. Broader Perspectives
    6. Literature Surveys
    1. Evaluation of photovoltaic modules based on sampling inspection using smoothed empirical quantiles (pages 1–9)

      Ansgar Steland and Werner Herrmann

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.926

      Thumbnail image of graphical abstract

      An important issue for end users and distributors of photovoltaic (PV) modules is the inspection of the power output of a shipment. The present paper discusses a statistical approach which uses the information of flash data tables, thus going beyond classic methods of acceptance sampling. We also propose a modified procedure which remarkably improves on the standard one as shown by simulation studies. Thus, our results allow for a substantial reduction of the costs of photovoltaic quality control.

    2. Separation of local bulk and surface recombination in crystalline silicon from luminescence reabsorption (pages 10–19)

      J. A. Giesecke, M. Kasemann, M. C. Schubert, P. Würfel and W. Warta

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.927

      Thumbnail image of graphical abstract

      Luminescence images of silicon solar cells and wafers reveal local electronic properties such as minority carrier diffusion lengths (L) and surface recombination velocities (S) in a combined manner. The separation of these recombination properties becomes increasingly important as solar cell efficiencies steadily improve. In this paper, reabsorption of luminescence is exploited by applying different optical short pass filters in order to separate local bulk recombination from local surface recombination in both silicon solar cells and wafers (image).

    3. Screen printing metallization of boron emitters (pages 20–27)

      R. Lago, L. Pérez, H. Kerp, I. Freire, I. Hoces, N. Azkona, F. Recart and J. C. Jimeno

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.933

      Thumbnail image of graphical abstract

      The influence of the composition of screen printing metal pastes on contacting boron emitters for crystalline silicon solar cells is analyzed and optimized on the basis of commercial Ag-paste Ferro 3347 by adding silicon and aluminum. Aluminum provides a lower contact resistance, while silicon prevents the spiking and alloying of aluminum with the silicon of the substrate. The results obtained have proven the feasibility of our screen printing process for p+nn+ structures.

    4. A new analog MPPT technique: TEODI (pages 28–41)

      N. Femia, G. Petrone, G. Spagnuolo and M. Vitelli

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.943

      Thumbnail image of graphical abstract

      TEODI is a new analog Maximum Power Point Tracking (MPPT) technique which is particularly suitable for Distributed Maximum Power Point Tracking Applications.

      Its main advantages are simplicity of implementation, absence of memory and multiplication operations, high MPPT efficiency and the intrinsic capability to attenuate the effect, on the PV voltage, of 100/120 Hz disturbances coming from the grid.

  2. Research: Short Communication: Accelerated Publications

    1. Top of page
    2. Research Articles
    3. Research: Short Communication: Accelerated Publications
    4. Research: Short Communications
    5. Broader Perspectives
    6. Literature Surveys
    1. You have free access to this content
      Forty three per cent composite split-spectrum concentrator solar cell efficiency (pages 42–47)

      Martin A. Green and Anita Ho-Baillie

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.924

      Thumbnail image of graphical abstract

      One way of improving photovoltaic efficiency is to subdivide the solar spectrum into small energy ranges and to convert each range with an appropriate bandgap cell. Most implementations use monolithic or mechanical cell stacks, with earlier approaches based on steering different wavelengths to non-stacked cells recently re-explored. The present work extends this by putting measurements on a more rigorous basis and by improving the “composite” experimental efficiency of selected cells to beyond 43%, the highest reported for photovoltaic conversion.

  3. Research: Short Communications

    1. Top of page
    2. Research Articles
    3. Research: Short Communication: Accelerated Publications
    4. Research: Short Communications
    5. Broader Perspectives
    6. Literature Surveys
    1. You have free access to this content
      Thin film solar cells incorporating microcrystalline Si1–xGex as efficient infrared absorber: an application to double junction tandem solar cells (pages 48–53)

      Takuya Matsui, Haijun Jia and Michio Kondo

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.922

      Thumbnail image of graphical abstract

      Hydrogenated microcrystalline Si1–xGex (µc-Si1–xGex:H) alloys are applied to bottom cell absorber of double junction tandem solar cells. In comparison with the conventional µc-Si:H, the µc-Si1–xGex:H bottom cell exhibits larger photocurrent densities at the thinner absorber thickness due to enhanced sensitivity in the infrared wavelengths. By incorporating Ge with x∼0.1-0.17, the thickness of bottom cell can be reduced by more than half while preserving the current matching with a-Si:H top cell.

    2. You have free access to this content
      Shunt removal and patching for crystalline silicon solar cells using infrared imaging and laser cutting (pages 54–60)

      Lucheng Zhang, Hui Shen, Zhuojian Yang and Jingsheng Jin

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.934

      Thumbnail image of graphical abstract

      To eliminate the electrical influence of bad shunts in crystalline silicon solar cell, they were physically removed using appropriate laser cutting and then replaced with good smaller cells. The results showed that there were much increases in conversion efficiency and working current for the repaired cells.

  4. Broader Perspectives

    1. Top of page
    2. Research Articles
    3. Research: Short Communication: Accelerated Publications
    4. Research: Short Communications
    5. Broader Perspectives
    6. Literature Surveys
    1. You have free access to this content
      BIPV: merging the photovoltaic with the construction industry (pages 61–72)

      Mario Pagliaro, Rosaria Ciriminna and Giovanni Palmisano

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.920

      Thumbnail image of graphical abstract

      BIPV (Building Integrated Photovoltaics) is a multifunctional technology that unifies the photovoltaic module with the overall building outer surface providing the building with several new functions while producing a portion or total building electricity usage. Increasing the aesthetic, functional and environmental value of a building at a much lower cost than in the recent past, new PV technologies will soon originate a market growth as intense as the growth of traditional PV market has been in the last 5 years.

  5. Literature Surveys

    1. Top of page
    2. Research Articles
    3. Research: Short Communication: Accelerated Publications
    4. Research: Short Communications
    5. Broader Perspectives
    6. Literature Surveys
    1. Photovoltaics literature survey (No. 75) (pages 73–77)

      Santosh Shrestha

      Article first published online: 29 DEC 2009 | DOI: 10.1002/pip.932

      Thumbnail image of graphical abstract

      In order to help keep readers up-to-date in the field each issue of Progress in Photovoltaics will contain a list of recently published journal articles most relevant to its aims and scope. This list is drawn from an extremely wide range of journals, including IEEE Transactions on Electron Devices, Journal of Applied Physics, Applied Physics Letters, Progress in Photovoltaics and Solar Energy Materials and Solar Cells. To assist the reader, the list is separated into broad categories, but please note that these classifications are by no means strict. Also note that inclusion in the list is not an endorsement of a paper's quality. If you have any suggestions please email Santosh Shrestha at s.shrestha@unsw.edu.au.

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