THEORY OF THE SWEPT INTRINSIC STRUCTURE 



30 



20 



10 

 8 



6 

 5 



1273 



_E_ 

 E, 



1.0 

 0.8 



0.6 

 0.5 

 0.4 



0.3 

 0.2 



0.1 



X-L 



Fig. 8 ■ — Field Distribution near the IP Junction for L = 2L; and A = f. 



changed. It is no longer so that charge diffusion can be neglected except 

 near the junctions. However, there is a linear combination of Jp and J„ 

 in which the diffusion term is negligible except near the junctions. 



Basic Relations 



The equations are the two continuity (2.9) and Poisson's (2.1). The 

 formulas for g — r remain unchanged, since they involve only the 

 statistics of recombination and are independent of mobility. The hole 

 and electron currents are given by (2.2) with b arbitrary. Eciuation (2.2) 

 for Jp in terms of E, p and n remains unchanged. Now ./„/6 has the same 



