| 查看: 2901 | 回復(fù): 11 | ||
[求助]
稀土元素Er熒光圖 已有3人參與
|
|
想問(wèn)一下,做熒光的大俠,對(duì)于鉺來(lái)說(shuō)它的發(fā)射峰的位置到底是在哪里?因?yàn)榭戳艘恍┪墨I(xiàn),對(duì)于它的發(fā)射峰總是在變來(lái)變?nèi)サ模?br />
在一個(gè)范圍之內(nèi),一種元素的發(fā)射峰不應(yīng)該是固定不變的嗎?離子的發(fā)射峰和它所處的基質(zhì)有關(guān)系嗎?熒光不是是電子躍遷產(chǎn)生的嗎?按這個(gè)道理 應(yīng)該和基質(zhì)沒有關(guān)系啊、 |

木蟲 (著名寫手)
三無(wú)小小鳥

金蟲 (小有名氣)

金蟲 (小有名氣)



木蟲 (著名寫手)
三無(wú)小小鳥


木蟲 (著名寫手)
三無(wú)小小鳥
|
980nm激發(fā)屬于共振激發(fā)(resonance excitation),很多工作用非共振波長(zhǎng)來(lái)激發(fā)。你可以去搜一下Luminescence-center-mediated excitation as the dominant Er sensitization mechanism in Er-doped silicon-rich SiO2 films, PR B, 76, 195419 (2007). 其中第4頁(yè)明確講到了Er的兩個(gè)放光帶: In addition to the LC- and NC-related emission bands observed in Fig. 2, an Er3+-related signal is observed at 981 nm for XSE samples, corresponding to the transition from the second excited state to the ground state of Er3+ 4I11/2→4I15/2. Figure 3 shows the near-infrared spectra for the XSE samples under the same excitation conditions. A clear Er3+-related emission spectrum peaking at 1535 nm is observed, corresponding to the transition from the first excited state to the ground state of Er3+ 4I13/2→4I15/2. |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 296求調(diào)劑 +6 | 彼岸t 2026-03-29 | 6/300 |
|
|---|---|---|---|---|
|
[考研] 【求調(diào)劑】085601材料工程專碩 | 總分272 | +7 | 腳滑的守法公民 2026-03-27 | 7/350 |
|
|
[考研] 11408軟件工程求調(diào)劑 +3 | Qiu學(xué)ing 2026-03-28 | 3/150 |
|
|
[考研] 311(085601)求調(diào)劑 +4 | liziyeyeye 2026-03-28 | 4/200 |
|
|
[考研] 283求調(diào)劑 +3 | A child 2026-03-28 | 3/150 |
|
|
[考研] 291求調(diào)劑 +15 | hhhhxn.. 2026-03-23 | 21/1050 |
|
|
[考研] 291求調(diào)劑 +6 | HanBeiNingZC 2026-03-24 | 6/300 |
|
|
[考研] 308求調(diào)劑 +7 | 墨墨漠 2026-03-27 | 7/350 |
|
|
[考研] 考研化學(xué)308分求調(diào)劑 +10 | 你好明天你好 2026-03-23 | 12/600 |
|
|
[考研] 化學(xué)308分求調(diào)劑 +8 | 你好明天你好 2026-03-23 | 9/450 |
|
|
[考研] 325求調(diào)劑 +5 | 李嘉圖·S·路 2026-03-23 | 5/250 |
|
|
[考研]
材料調(diào)劑
5+4
|
想要一壺桃花水 2026-03-25 | 10/500 |
|
|
[考研]
|
WWW西西弗斯 2026-03-24 | 8/400 |
|
|
[考研] 一志愿 南京郵電大學(xué) 288分 材料考研 求調(diào)劑 +3 | jl0720 2026-03-26 | 3/150 |
|
|
[考研] 化學(xué)調(diào)劑一志愿上海交通大學(xué)336分-本科上海211 +4 | 小魚愛有機(jī) 2026-03-25 | 4/200 |
|
|
[考研] 26考研-291分-廈門大學(xué)(085601)-柔性電子學(xué)院材料工程專業(yè)求調(diào)劑 +3 | min3 2026-03-24 | 4/200 |
|
|
[考研] 網(wǎng)絡(luò)空間安全0839招調(diào)劑 +4 | w320357296 2026-03-25 | 6/300 |
|
|
[考研] 調(diào)劑 +4 | 13853210211 2026-03-24 | 4/200 |
|
|
[考研] 一志愿南航材料專317分求調(diào)劑 +5 | 炸呀炸呀炸薯?xiàng)l 2026-03-23 | 5/250 |
|
|
[考研] 080500求調(diào)劑 +3 | zzzzfan 2026-03-24 | 3/150 |
|