Your daily dose of photovoltaic technology developments and solar news

• Popular Technical Papers

  • Photovoltaic Fab Managers’ Forum Review
  • Photovoltaic industry 2009: a journey into uncertainty
  • Overview of automation in the photovoltaic industry
  • Thin-film CIGS starts to come of age
  • CIGS, CdTe thin-film PV equipment sector emerges, standardization remains elusive

• Featured Technical Papers

  • Comparison of different ceramic Al-doped ZnO target materials
  • Understanding the role of abrasives used in the multi-wire sawing process
  • Achievements and challenges in two-step metallization processes for crystalline silicon solar cells
  • Characterization and monitoring technologies for CIGS
  • Laser-assisted selective emitters and the role of laser doping

Despite the low-cost, high-efficiency, radical form factor promise of many thin-film photovoltaic technologies, scaling these materials to large-volume production has presented a wide array of challenges. Because of the recent polysilicon shortage, an incredible amount of resources have been focused on this goal and many thin-film alternatives are now available. One of the most intriguing of these materials, copper indium gallium diselenide (CIGS), has great potential to reset the thin-film market and make new applications cost effective and viable. CIGS technology is differentiated from competing PV materials by a combination of factors. The manufacturing cost of thin-film cells can be very inexpensive since they require few raw materials and can be made with an efficient, scalable roll-to-roll process. CIGS has been established as the most efficient thin-film technology in converting sunlight into electricity. A flexible substrate will ultimately enable energy and building-integrated applications beyond the capability of rigid, heavier PV products.

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