中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Enhancement of two-photon absorption cross section and singlet-oxygen generation in porphyrin-cored star polymers
作者: Wan Yan1, 2;  Jia Ke1, 2;  Li BinSong2, 3;  Bo ZhiShan2, 3;  Xia AnDong1, 2
关键词: porphyrin-cored star polymer ;  two-photon excitation ;  energy transfer
刊名: SCIENCE IN CHINA SERIES B-CHEMISTRY
发表日期: 2009
DOI: 10.1007/s11426-008-0157-6
卷: 52, 期:1, 页:56-63
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: We report a newly synthesized polymer of a star-shaped porphyrin compound (TPA-FxP) with four oligofluorene arms at its meso positions with the pronounced enhancement of the two-photon properties and the generation of singlet oxygen by utilizing the two-photon excited fluorescence resonance energy transfer. The steady-state spectra and transient triplet-triplet absorption spectra give evidence that the enhanced two-photon absorption cross section results from not only the through-space energy transfer (Forster) but also the through-bond energy transfer between conjugated peripheral oligofluorene arms and the porphyrin core. The two-photon absorption cross section at 780 nm up to 3360 GM (1 GM = 10(-50) cm(4)center dot s/photon) of TPA-FxP was obtained, which is comparable to the highest values reported from other similar chemically modified porphyrin core compounds. Furthermore, the enhanced production of singlet oxygen under two-photon absorption conditions is also reported.
关键词[WOS]: LIGHT-EMITTING MATERIALS ;  PHOTODYNAMIC THERAPY ;  ENERGY-TRANSFER ;  RESONANCE ENHANCEMENT ;  SELF-ASSEMBLIES ;  QUANTUM YIELDS ;  FREE-BASE ;  EXCITATION ;  CHROMOPHORES ;  DERIVATIVES
语种: 英语
WOS记录号: WOS:000262439700008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141491
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China

Recommended Citation:
Wan Yan,Jia Ke,Li BinSong,et al. Enhancement of two-photon absorption cross section and singlet-oxygen generation in porphyrin-cored star polymers[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2009,52(1):56-63.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wan Yan]'s Articles
 [Jia Ke]'s Articles
 [Li BinSong]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wan Yan]‘s Articles
 [Jia Ke]‘s Articles
 [Li BinSong]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace