The formation of a solid solution was monitored by means of X-ray studies of annealed powder mixtures of the components. The results (table 43) indicated that the overall activation energy for interdiffusion at temperatures of between 650 and 725C was equal to 3.15eV.

U.Voland, R.Cerny, P.Deus, D.Bergner, G.Fenninger: Crystal Research and Technology, 1989, 24[11], 1177-85

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Table 43

Interdiffusion Parameters for InP/GaP Mixtures

 

Temperature (C)

Do (cm2/s)

Q(eV)

650 - 800

0.007

2.1

650 - 700

1000

3.2

675 - 725

400

3.1