| 咔唑在含硝酸乙醇溶液中的发光特性 |
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| 引用本文： | 邱桂明,陈荣.咔唑在含硝酸乙醇溶液中的发光特性[J].汕头大学学报(自然科学版),2007,22(2):43-46. |
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| 作者姓名： | 邱桂明 陈荣 |
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| 作者单位： | 汕头大学物理系,广东,汕头,515063 |
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| 摘 要： | 通过向咔唑的乙醇溶液中加入硝酸,制得能够发射绿光的咔唑溶液.测量其不同浓度溶液的发射光谱,发现当浓度较低时,其溶液能够发射紫光,随着浓度逐渐增大,发光也相应红移到绿光.基于对咔唑乙醇溶液、盐酸溶液以及硝酸溶液之间发射谱和吸收谱的比较,探究了咔唑的硝酸溶液能够发射绿光的原因.结果表明,由于咔唑发生了硝化反应,生成咔唑的衍生物,并且形成相应的激基缔合物,进而导致了咔唑发光特性的改变.
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| 关 键 词： | 咔唑 发光 激基缔合物 硝化反应 |
| 文章编号： | 1001-4217（2007）02-0043-04 |
| 收稿时间： | 2006-12-08 |
| 修稿时间： | 2006-12-08 |
Investigation on Photoluminescence Properties of Carbazole Molecules in Mixture of Ethanol and Nitric Acid |
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| QIU Gui-ming,CHEN Rong.Investigation on Photoluminescence Properties of Carbazole Molecules in Mixture of Ethanol and Nitric Acid[J].Journal of Shantou University(Natural Science Edition),2007,22(2):43-46. |
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| Authors: | QIU Gui-ming CHEN Rong |
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| Institution: | Department of physics, Shantou University, Shantou 515063, Guangdong, China |
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| Abstract: | Carbazole-containing solutions by addition of nitric acid were prepared.Photoluminescence(PL) of the resulted solution was collected.It was found that at dilution purple light-emitting was achieved,and redshifted to green with concentration increasing gradually.In order to clarify the origin of green light-emitting from carbazole,PL and absorption spectra of carbazole dissolving in ether only ethanol solvent or mixture of ethanol and hydrochloric acid were measured,respectively.It is shown that green emission can be attributed to the resultant carbazole ramification and their exciplex formation due to nitration reaction when carbazole molecules are added into mixture of ethanol and nitric acid. |
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| Keywords: | carbazole photoluminescence pxciplex nitration reaction |
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