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qinqin1993

铁杆木虫 (著名写手)

爱有机爱的深沉

[求助] 关于载流子或者偶极子的问题

The charge carriers or polarons move in the semiconductor via drift and diffusion processes. Diffusion causes local displacement of charge carriers around an average position,whereas drift causes displacement in average position. 请问这里的浓度扩散和平均位置有关? 这句话怎么理解 还有迁移的的那句里的平均位置
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