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13813284471銀蟲 (小有名氣)
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[求助]
濃度對量子點熒光的影響
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| 各位好!請教一下,我做出來的CdTe量子點或者包了殼ZnS的量子點感覺熒光強度不好,然后我用雙蒸水將它稀釋了,感覺它的熒光還可以,這樣做有問題嗎?當(dāng)然我渴望您有更好的建議能提供給鄙人,謝謝! |

專家顧問 (著名寫手)
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專家經(jīng)驗: +19 |
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It is very vague and unclear to see whether the PL of QDs is good or not by just eyes or simple intensity comparison. It would be more convincing to measure the quantum yield of QDs to judge their PL efficiency. Note that the concentration of QDs for measuring PL spectrum should be very low so that their absorbance at the excitation wavelength is less than 0.1. |
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