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[請問] 問一個LED的問題

Sep 20th 2013, 21:08, by solarcells

作者solarcells (太陽)

看板ask

標題[請問] 問一個LED的問題

時間Fri Sep 20 21:08:50 2013

※ [本文轉錄自 Chemistry 看板 #1IF244O5 ] 作者: solarcells (太陽) 看板: Chemistry 標題: [實驗] 問一個LED的問題時間: Fri Sep 20 18:18:42 2013 剛剛在網路上看一個反應 http://ppt.cc/sHd9 把LED燈放入液態氮中發光會從橘變黃在變綠往短波長移動我自己的解釋是半導體類的升高溫度會提高導電度--> 價帶跟導帶距離縮小所以降低溫度會提升價帶跟導帶的距離導致E上升 --> 波長變短這種想法對嗎? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 175.183.3.20 ※ 發信站: 批踢踢實業坊(ptt.cc) ※ 轉錄者: solarcells (61.224.235.159), 時間: 09/20/2013 21:08:50

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