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  • Takeshi Yanagisawa, Takeshi Kojima, Tadamasa Koyanagi, Kiyoshi Takahisa, Kuniomi Nakamura
  • Chemistry
  • 2001 (First Published: 1 October 2001)
  • Measuring changes in temperature coefficients is an effective way to estimate the performance of a solar cell. We investigated changes in the temperature coefficients of the I–V characteristics ofContinue Reading
  • Takeshi Yanagisawa, Takeshi Kojima, Tadamasa Koyanagi, Kiyoshi Takahisa, Kuniomi Nakamura
  • Computer Science, Chemistry
  • Microelectron. Reliab.
  • 2002 (First Published: 1 February 2002)
  • Abstract Changes in the characteristics of CuInGaSe 2 solar cells in response to light irradiation were investigated. Then these changes, which suggest long-term degradation, were clarified using theContinue Reading
    CIGS solar cells are studied with CV/MCV measurements in a wide range of temperatures. Using a simple model, we succeeded in obtaining shallow trap levels in the bulk from the value of reduction ofContinue Reading