Progress in Photovoltaics: Research and Applications

Cover image for Progress in Photovoltaics: Research and Applications

August 2010

Volume 18, Issue 5

Pages 311–388

  1. Research Articles

    1. Top of page
    2. Research Articles
    3. Research: Short Communications
    4. Applications
    5. Broader Perspectives
    6. Literature Survey
    1. Seasonal variations on energy yield of a-Si, hybrid, and crystalline Si PV modules (pages 311–320)

      Miglena Nikolaeva-Dimitrova, Robert P. Kenny, Ewan D. Dunlop and Mauro Pravettoni

      Version of Record online: 24 MAY 2010 | DOI: 10.1002/pip.918

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      This paper presents a study of long term outdoor performance of a-Si and Hybrid modules mounted in the same location over several years. A seasonal variation in output, higher in the summer and lower in the winter, suggests that the module performance improves due to annealing when the module temperature is higher. The total output energy per month for these two technologies and a reference c-Si technology is also presented.

    2. Dynamic radiative properties of the Cu(In,Ga)Se2 layer during the co-evaporation process (pages 321–327)

      J. Schöldström, U. Zimmermann and M. Edoff

      Version of Record online: 15 APR 2010 | DOI: 10.1002/pip.931

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      The wavelength-integrated emissivity for the optical stack CuxSe/Cu(In,Ga)Se2/Mo has been studied by measurements and simulations. The results are valuable input into understanding the dynamics of the change in emissivity between Cu-rich Cu(In,Ga)Se2 with segregated CuxSe and Cu-poor single phase Cu(In,Ga)Se2 at temperatures around 500°C. In co-evaporation of Cu(In,Ga)Se2, this emissivity change is often monitored and used as process control (end-point detection).

    3. Four-junction solar cells using lattice-matched II–VI and III–V semiconductors (pages 328–333)

      S.-N. Wu, D. Ding, S. R. Johnson, S.-Q. Yu and Y.-H. Zhang

      Version of Record online: 15 APR 2010 | DOI: 10.1002/pip.962

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      Four-junction solar cells are designed using lattice-matched II-VI (ZnCdSeTe) and III-V (AlGaAsSb) semiconductors grown on GaSb substrates. Numerical simulations of these designs show that the achievable efficiency using these materials is 43% for 1 sun AM0 and 55% for 1000 suns AM1.5D. For comparison Henry's model gives 49% for 1 sun AM0 and 62% for 1000 suns AM1.5D.

    4. Influence of precursor layer ablation on laser doping of silicon (pages 334–339)

      J. R. Köhler and S. Eisele

      Version of Record online: 15 APR 2010 | DOI: 10.1002/pip.968

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      This Figure shows the fabrication of a selective emitter on a monocrystalline silicon solar cell using the ipe laser doping (LD) process, which uses dopand precursor layers deposited on top of the wafer surface. The ablation and recondensation of these layers are some of the dominating physical processes in LD. We developed a numerical model, which quantitatively explains experimental results, and which we used to determine the ablation rate and ablation width of pure phosphorus precursor layers.

    5. Parallel-connected monolithic dye-sensitised solar modules (pages 340–345)

      Henrik Pettersson, Tadeusz Gruszecki, Christine Schnetz, Micha Streit, Yunhua Xu, Licheng Sun, Mikhail Gorlov, Lars Kloo, Gerrit Boschloo, Leif Häggman and Anders Hagfeldt

      Version of Record online: 15 APR 2010 | DOI: 10.1002/pip.971

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      Our experiences from the development of a four-layer monolithic dye-sensitised solar test cell for comparative testing of material components for dye-sensitised solar cells have directed our module development to a novel device design consisting of parallel-connection of individual monolithic cells. Light-soaking and high-temperature storage testing of devices (total area of 17.0 cm2) with four parallel-connected cells with total area module efficiencies above 5 % have been performed.

  2. Research: Short Communications

    1. Top of page
    2. Research Articles
    3. Research: Short Communications
    4. Applications
    5. Broader Perspectives
    6. Literature Survey
    1. You have free access to this content
      Solar cell efficiency tables (version 36) (pages 346–352)

      Martin A. Green, Keith Emery, Yoshihiro Hishikawa and Wilhelm Warta

      Version of Record online: 18 JUN 2010 | DOI: 10.1002/pip.1021

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      Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined and new entries since January 2010 are reviewed.

  3. Applications

    1. Top of page
    2. Research Articles
    3. Research: Short Communications
    4. Applications
    5. Broader Perspectives
    6. Literature Survey
    1. You have free access to this content
      Radial CPV receiver (pages 353–362)

      Marta Vivar, I. Antón and G. Sala

      Version of Record online: 29 APR 2010 | DOI: 10.1002/pip.921

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      A radial CPV receiver has been designed in order to reduce the power losses due to the effect of the optical mismatch in parabolic dish concentrators creating spots of light with radial symmetry. At the same time, when tracking errors move the focus off the central position, parallel interconnection of opposite circular sectors compensates the current mismatch and it reduces the total power losses.

    2. You have free access to this content
      An analysis of reliability in the early stages of photovoltaic systems in Japan (pages 363–370)

      Takashi Oozeki, Takao Yamada, Kenji Otani, Takumi Takashima and Kazuhiko Kato

      Version of Record online: 29 APR 2010 | DOI: 10.1002/pip.925

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      The failure rate in first year of each system type, FY 1998 of the standard unit type and FY 2003 of PV system, was higher than the other years. PV systems were expected to improve by feedback of trouble case in the early term from introduction into the market.

  4. Broader Perspectives

    1. Top of page
    2. Research Articles
    3. Research: Short Communications
    4. Applications
    5. Broader Perspectives
    6. Literature Survey
    1. You have free access to this content
      Technical and economic performance analysis of large-scale ground-mounted PV plants in Italian context (pages 371–384)

      N. Aste and C. Del Pero

      Version of Record online: 29 APR 2010 | DOI: 10.1002/pip.984

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      This work carries out a performance analyses on the most widespread groundmounted PV plant configurations, taking into account different Italian climatic contexts, considering technical, energetic, and economic points of view. The final profitability of each analyzed configuration has been evaluated, giving a reliable indication on their effective economic advantages.

  5. Literature Survey

    1. Top of page
    2. Research Articles
    3. Research: Short Communications
    4. Applications
    5. Broader Perspectives
    6. Literature Survey

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