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電子學 P14光碟210107 3分20秒
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電子學
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郭俊偉
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Sep 28, 2012, 3:29:08 AM
9/28/12
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電子學
P14
光碟
210107 3
分
20
秒
請問
:
半導體的溫度越高,就算斷鍵越多,自由電子電洞對越多,但原子部也運動的越激烈,那碰撞不也越激烈,電阻怎會下降
?
費因曼客服
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Sep 28, 2012, 6:27:45 AM
9/28/12
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您好:
這部份的確切知識已超出客服能力範圍,所以無法詳述
不過在邏輯上,
當溫度升高時,使電阻增加(原子的運動)及降低(電洞增加)的因素都出現
那就是看哪種因素影響比較大
而電阻降低是實驗觀察的事實,
不會因為單一電阻增加的因素,就推翻半導體溫度增加時電阻降低的事實
郭俊偉於 2012年9月28日星期五UTC+8下午3時29分08秒寫道:
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