Accessing the Triplet State in Heavy-Atom-Free Perylene Diimides
文献类型：期刊论文
| 作者 | Yu, Zhenyi1,2; Wu, Yishi1; Peng, Qian1; Sun, Chunlin1; Chen, Jianwei1,2; Yao, Jiannian1,3,4; Fu, Hongbing1,3,4 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2016-03-24 |
| 卷号 | 22期号:14页码:4717-4722 |
| 关键词 | charge transfer intersystem crossing perylene diimide singlet oxygen generation triplet excited state |
| 英文摘要 | Previous studies of perylenediimides (PDIs) mostly utilized the lowest singlet excited state S-1. Generation of a triplet excited state (T-1) in PDIs is important for applications ranging from photodynamic therapy to photovoltaics; however, it remains a formidable task. Herein, we developed a heavy-atom-free strategy to prompt the T1S1 intersystem crossing (ISC) by introducing electron-donating aryl (Ar) groups at the head positions of an electron-deficient perylenediimide (PDI) core. We found that the ISC efficiency increases from 8 to 54% and then to 86% by increasing the electron-donating ability of head-substituted aryl groups from phenyl (p-PDI) to methoxyphenyl (MeO-PDI) and then to methylthioxyphenyl (MeS-PDI). By enhancing the intramolecular charge-transfer (ICT) interaction from p-PDI to MeO-PDI, and then to MeS-PDI, singlet oxygen generation via energy-transfer reactions from T-1 of PDIs to O-3(2) was demonstrated with the highest yield of up to 80%. These results provide guidelines for developing new triplet-generating PDIs and related rylene diimides for optoelectronic applications. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35958]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Capital Normal Univ, Dept Chem, Beijing Key Lab Opt Mat & Photon Devices, Beijing 100048, Peoples R China 4.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Zhenyi,Wu, Yishi,Peng, Qian,et al. Accessing the Triplet State in Heavy-Atom-Free Perylene Diimides[J]. CHEMISTRY-A EUROPEAN JOURNAL,2016,22(14):4717-4722. |
| APA | Yu, Zhenyi.,Wu, Yishi.,Peng, Qian.,Sun, Chunlin.,Chen, Jianwei.,...&Fu, Hongbing.(2016).Accessing the Triplet State in Heavy-Atom-Free Perylene Diimides.CHEMISTRY-A EUROPEAN JOURNAL,22(14),4717-4722. |
| MLA | Yu, Zhenyi,et al."Accessing the Triplet State in Heavy-Atom-Free Perylene Diimides".CHEMISTRY-A EUROPEAN JOURNAL 22.14(2016):4717-4722. |
入库方式： OAI收割
来源：化学研究所
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