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幸运赛车官网 A05组供稿 第32期 2020年04月28日
北京凝聚态物理国家研究中心
碳纳米管荧光量子效率研究取得进展

  zi2002niantannamiguandeyingguangtexingshoucibeiguancedaoyilai,yingguangguangpuyijingbeiguangfandiyingyongyubiaozhengtannamiguandeyuanzijiegou、guangdianzihewulitexing。butongyuqitayingguangcailiao,duiyuyiweitannamiguaneryan,yinweiqifaguangbozhanghexishoubozhangcunzaiyanzhongdezhongdie,jisituokesiweiyifeichangxiao,suoyiguangzizaixishouxiaoyingjiangduiyingguangchanshengyanzhongyingxiang,zhijiedaozhiletannamiguandeyingguangguangpuxingzhuangheyingguangqiangduqiangliediyilaiyutannamiguandenongdu。zheigewentishideyingguangguangpudingliangbiaozhengtannamiguandetanyuanzihanliang、benzhengyingguangliangzixiaolvdengbiandefeichangkunnan。

  jinqi,xingyunsaicheguanwang /beijingningjutaiwuliguojiayanjiuzhongxinxianjincailiaoyujiegoufenxishiyanshia05zuweixiaojunfuyanjiuyuan、liuhuapingyanjiuyuanheribenchanyejishuzongheyanjiusuoshouxiyanjiuyuanhiromichi kataurajiaoshoudenghezuo,zaitannamiguanyingguangliangzixiaolvyanjiufangmianqudejinzhan。yanjiutuanduijiyuningjiaosepufenlijishuzhibeilebutongshouxingdetannamiguancailiao(tu1),bingdingliangjiexiletannamiguanyingguangguangpuzhongdeguangzizaixishouxiaoying(tu2hetu3)。suihoujiyuzaixishouxiaoyingxiuzhenglebutongshouxingtannamiguandebenzhengyingguangliangzixiaolv(tu4hebiao1),bingshoucitongguoshiyanjieshiletannamiguanyingguangliangzixiaolvhenengdaijiegoudeyicunguanxi(tu5)。shiyanjieguobiaoming: (i)younengdaijiegousuozhipeideguangxueshengzidechiyuguochengshijuedingtannamiguanyingguangliangzixiaolvdezhuyaoyinsu;(ii)juyouleisizhijingdetannamiguan,yinweishouxinghenengdaijiegoudebutong,qiyingguangliangzixiaolvcunzaishuliangjidechayi。

  cixianggongzuobujinjiejueleruheshiyongyingguangguangpudingliangbiaozhengtannamiguanyingguangliangzixiaolv、gezhongshouxingtannamiguanhanliangfenbudengdepingjingwenti,erqieweijinhouruhexuanqujuyoubenzhengyouyiguangdianxingzhidedanyishouxingtannamiguan,fazhangaoxingnengguangdianziqijian、shengwuchengxiang、fenzitancedengyingyongtigonglezhongyaozhidaozuoyong。

  gaigongzuoyi“photoluminescence quantum yield of single-wall carbon nanotubes corrected for the photon reabsorption effect”weiti,fabiaozai《namikuaibao》zazhishang。zheixiangyanjiudedaoleguojiazirankexuejijin(51820105002, 11634014, 51872320)、kejibuguojiazhongdianyanfajihua(2018yfa0208402)dengxiangmudezhichi。

  wenzhanglianjie: http://pubs.acs.org/doi/10.1021/acs.nanolett.9b04095

 
图1: 基于凝胶色谱分离技术制备的不同手性碳纳米管材料。
 
图2: 碳纳米管光吸收和荧光特性的浓度依存性。
 
图3: 本征的、再吸收的、和观测到的荧光光谱解析。
 
图4: 不同手性碳纳米管荧光光谱积分强度的浓度依存性。
表1: 不同手性碳纳米管的结构参数和每个碳原子荧光量子效率。
图5: 碳纳米管荧光量子效率的手性依存性。
下载附件>> Nano Lett. 20, 410 (2020).pdf