X-ray determination of charge transfer in solar grade GaAs Original Research Article

The magnitude and direction of charge transfer in GaAs at various temperatures have been analyzed using our precise and extensive single-crystal X-ray diffraction data. The charge transfer parameters were obtained by employing a quadratic equation method and precise X-ray structure factors collected at 170, 200, 250 and 300 K. A transfer of charge from gallium atom to arsenide atom is evidenced at all the above temperatures.