Energy transfer process between exciton and surface plasmon: Complete transition from Forster to surface energy transfer

Arunandan Kumar; Priyanka Tyagi; Ritu Srivastava; D. S. Mehta; M. N. Kamalasanan

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Energy transfer process between exciton and surface plasmon: Complete transition from Forster to surface energy transfer

机译：激子与表面等离激元之间的能量转移过程：从Forster到表面能量转移的完全过渡

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The energy transfer process between surface plasmons and excitons was studied by varying the filling fraction of gold (Au) nano-clusters (NCs) and by placing a spacer of different thickness between Au NC and organic semiconductor layer. The intensity enhancement has occurred for 10%-50% filling fractions and 4-14nm spacer thicknesses. Energy transfer mechanism was found to switch from Forster type to surface type by increase in filling fraction. Transverse electric field for Au NCs was simulated and we observed that for filling fraction ＜30%, Au NCs behave like 1-dimensional dipole and for ＞60%, they behave like 2-dimensional dipoles.

机译：通过改变金（Au）纳米团簇（NC）的填充比例以及在Au NC和有机半导体层之间放置不同厚度的隔离层，研究了表面等离子体激元与激子之间的能量转移过程。对于10％-50％的填充比例和4-14nm的隔离层厚度，强度已经提高。发现通过增加填充率，能量转移机理从Forster型转变为表面型。模拟了Au NCs的横向电场，我们观察到填充率＜30％时，Au NCs表现为一维偶极子，而当＞ 60％时，Au NCs表现为二维偶极子。

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来源
《Applied Physics Letters》 |2013年第20期|203304.1-203304.5|共5页
作者
Arunandan Kumar; Priyanka Tyagi; Ritu Srivastava; D. S. Mehta; M. N. Kamalasanan;
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作者单位

Center for Organic Electronics, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K. S. Krishnan Road, New Delhi 110012, India,Instrument Design Development Center, Indian Institute of Technology Delhi, Hauz Khas New Delhi, 110016, India;

Center for Organic Electronics, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K. S. Krishnan Road, New Delhi 110012, India;

Center for Organic Electronics, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K. S. Krishnan Road, New Delhi 110012, India;

Instrument Design Development Center, Indian Institute of Technology Delhi, Hauz Khas New Delhi, 110016, India;

Center for Organic Electronics, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K. S. Krishnan Road, New Delhi 110012, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Energy transfer process between exciton and surface plasmon: Complete transition from Forster to surface energy transfer

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