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糖太甜521鐵蟲 (初入文壇)
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因?yàn)楸容^急，所以拜托各位大神了，小女子在此謝過�。�！
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The polymerized film displays four typical colours as increasing applied voltage. Those are light green at 0 V, red at 1V, grey at 1.1 V and blue at 1.45 V. To understand the electro-chromic properties, electrode potential correlated UV-vis absorption spectra of the film polymerized at 1.35 V were recorded. As shown in Fig. 7(b), in the neutral state from 0 V to 0.8 V, the film exhibits a strong absorption band centred at 350nm, which can be assigned to the Π-Π* transition of the poly-mer backbone. Upon increasing the voltage gradually to 1.45 V,the peak at 350 nm continuously weakened. When the voltage reached 0.9 V, a shoulder peak at 484 nm appeared and strengthened to the maximum at 1.0 V. Then the intensity of the shoulder peak decreased and finally vanished at potentials from 1.1 V to 1.45 V. Simultaneously a new absorption band at around 769 nm emerged and enhanced along with the increase of the applied potential. The formation of new peaks at 484 and 769 nm could be ascribed to the evolution of polaron and bipolaron bands (Fig. 7) |
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糖太甜521: 金幣+5, 翻譯EPI+1, ★★★★★最佳答案 2014-10-23 11:00:02
糖太甜521: 金幣+5, 翻譯EPI+1, ★★★★★最佳答案 2014-10-23 11:00:02
| 隨著施加電壓的增加，聚合膜顯示四種典型的顏色。即在0 V時(shí)呈淡綠色，1V時(shí)為紅色，在1.1 V時(shí)為灰色，1.45 V時(shí)則為藍(lán)色。為了了解電致變色性能，合在1.35 V記錄了聚膜的與電極電位相關(guān)的紫外-可見光吸收光譜。如圖7（b）所示，從0V到0.8V，在中性狀態(tài)下，該膜以350nm處為中心表現(xiàn)出強(qiáng)的吸收帶，可將其分配到該聚聚體主鏈的Π-Π轉(zhuǎn)換。當(dāng)逐漸增加電壓至1.45伏，在350 nm的峰值波長連續(xù)減弱。當(dāng)電壓達(dá)到0.9V時(shí)在484 nm處出現(xiàn)，肩峰，并于1.0V時(shí)加強(qiáng)至最大值。然后肩峰的強(qiáng)度降低，最終當(dāng)電勢從1.1 V升至1.45 V時(shí)消失。同時(shí)在769 nm處出現(xiàn)一個(gè)新的吸收帶，并隨著所施加的電勢的增加而增強(qiáng)。在484和769 nm處形成的新峰可能是由于極化子的演變和雙極化帶（圖7）。 |
2樓2014-10-23 09:16:12
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