[問題] energy band
碳(鑽石)因為四個價電子填滿了一個混成軌域而成為絕緣體,
但如果換做是氮呢?氮比碳多了一個價電子,那麼會再往上填另一個混成軌域,
這樣的話,那個混成軌域就會同時是valence band和conduction band而成為導體,
但事實並非如此,請問是哪裡出了問題呢?
因為我目前只是修普物(二),或許有觀念上的謬誤,還請大大不吝指教,謝謝。
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