藍兔 asked in 科學工程學 · 1 decade ago

why was Heterojunction bending

why was Heterojunction bending?

and how?

Is it due to the accumulation and delption?

Update:

那在請問一下喔

他彎曲向上或向下要怎麼來判斷

是因為電洞累積造成向上彎曲(accumulation,堆積)

而電子抵銷電洞造成向下彎曲(delption,耗盡)

是這樣?

1 Answer

Rating
  • 1 decade ago
    Favorite Answer

    因為Fermi energy要line up,所以會bending

    推導的話,半導體物理的書本裡面有

    2008-10-22 23:17:24 補充:

    以junction的地方做基準,Fermi level 往上移動==>向上彎曲

    ,Fermi level 往下移動==>向下彎曲

    基本上,在 depletion region是沒有電子電洞的,只有帶電的原子核(雜質原子)

Still have questions? Get your answers by asking now.