The methods of p-n junction measurement and radioactive tracer analysis were used to study the diffusion of B in single crystals at various impurity surface concentrations (table 21). The data could be described by:

D(cm2/s) = 1.62 x 102exp[-4.05(eV)/kT]

V.A.Uskov, P.V.Pavlov, E.V.Kurilchik, V.I.Pashkov: Fizika Tverdogo Tela, 1970, 12[5], 1504-10