| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-07-25 |
| タイトル |
|
|
タイトル |
Energy transfer dynamics in wire-type dendrimers having oligophenylene peripheries |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題 |
dendrimer, energy transfer, Wire-type dendrimer, Light harvesting, Rapid energy transfe, Poly-p-phenylenevinylene, Oligophenylene |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
赤井, 一郎
樋口, 正幸
鐘本, 勝一
唐沢, 力
橋本, 秀樹
木村, 睦
|
| 内容記述 |
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|
内容記述タイプ |
Abstract |
|
内容記述 |
Energy transfer and shielding effect are studied in wire-type dendrimers (GnPPV: n-th generation dendrimer with poly(p-phenylenevinylene) backbone; n = 1, 2) having oligophenylene light-harvesting (LH) antenna. Following the excitation of the LH-antennae, backbone-polymers in GnPPV give rise to intense photoluminescence (PL) bands. This is due to the presence of highly efficient energy transfer from the LH-antennae to the backbone-polymers. The intensity of backbone-PL increases faster than the decay of the antenna-PL. This result indicates that rapid energy-transfer from antenna to backbone takes place utilizing the overlap of wavefunctions in the excited states. In G2PPV having larger LH-antenna, shielding effect against inter-backbone interactions is recognized more effectively than G1PPV. In solid films of GnPPV, red shifts of the backbone-PL bands are observed. This is caused by inter-backbone interactions of the wire-type dendrimers due to aggregation. The extent of the red shift in G2PPV is smaller than that of G1PPV. This result suggests that the larger LH-antenna in G2PPV substantially wraps its backbone-polymer and shields the inter-backbone interactions. |
| 書誌情報 |
en : Journal of Luminescence
巻 128,
号 5月6日,
p. 948-951,
発行年 2008
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| ISSN |
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収録物識別子 |
0022-2313 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00701292 |
| 権利 |
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|
権利情報 |
Copyright (C) 2007 Elsevier B.V. All rights reserved |
| 著者版フラグ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 日本十進分類法 |
|
|
主題Scheme |
NDC |
|
主題 |
500 |
| 出版者 |
|
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出版者 |
Elsevier Science B.V. |
| 関連 |
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関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1016/j.jlumin.2007.11.036 |
We-P4-37-20070709.pdf (158.7 kB)
