Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays
Excitation energy transport in a biomimetic molecular nanoarray constructed from LH2 antenna complexes is investigated by a master equation approach including the effect of coherent hopping. Calculated stationary and transient fluorescence signals upon incidence of a diffraction-limited light pulse...
| Main Authors: | , , , , |
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| 其他作者: | |
| 格式: | Journal Article |
| 语言: | English |
| 出版: |
2012
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| 主题: | |
| 在线阅读: | https://hdl.handle.net/10356/93944 http://hdl.handle.net/10220/7683 |
| _version_ | 1826109747228573696 |
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| author | Yang, Guangcan Wu, Ning Chen, Tuo Sun, Kewei Zhao, Yang |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Yang, Guangcan Wu, Ning Chen, Tuo Sun, Kewei Zhao, Yang |
| author_sort | Yang, Guangcan |
| collection | NTU |
| description | Excitation energy transport in a biomimetic molecular nanoarray constructed from LH2 antenna complexes is investigated by a master equation approach including the effect of coherent hopping. Calculated stationary and transient fluorescence signals upon incidence of a diffraction-limited light pulse are compared with measurements. Energy transport was established from the influence of active energy-guiding layers on the observed fluorescence emission. Energy migration occurs as a result of efficient coupling between many hundreds of LH2 complexes. We obtain an analytical expression of stationary fluorescence distribution solving the master equations of the system. The time-dependent fluorescence intensity is derived using the same formalism. The numerical results show a reasonable consistency with the experimental result in the engineered nanoarray of LH2 complexes. In addition, our results show that quantum coherence mechanism is necessary to explain the long distance energy transport. These results demonstrate the potential for long-range energy propagation in hybrid systems composed of natural light-harvesting antenna molecules from photosynthetic organisms. |
| first_indexed | 2024-10-01T02:23:23Z |
| format | Journal Article |
| id | ntu-10356/93944 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:23:23Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/939442023-07-14T15:53:08Z Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays Yang, Guangcan Wu, Ning Chen, Tuo Sun, Kewei Zhao, Yang School of Materials Science & Engineering DRNTU::Engineering::Materials Excitation energy transport in a biomimetic molecular nanoarray constructed from LH2 antenna complexes is investigated by a master equation approach including the effect of coherent hopping. Calculated stationary and transient fluorescence signals upon incidence of a diffraction-limited light pulse are compared with measurements. Energy transport was established from the influence of active energy-guiding layers on the observed fluorescence emission. Energy migration occurs as a result of efficient coupling between many hundreds of LH2 complexes. We obtain an analytical expression of stationary fluorescence distribution solving the master equations of the system. The time-dependent fluorescence intensity is derived using the same formalism. The numerical results show a reasonable consistency with the experimental result in the engineered nanoarray of LH2 complexes. In addition, our results show that quantum coherence mechanism is necessary to explain the long distance energy transport. These results demonstrate the potential for long-range energy propagation in hybrid systems composed of natural light-harvesting antenna molecules from photosynthetic organisms. Accepted version 2012-03-26T08:32:54Z 2019-12-06T18:48:16Z 2012-03-26T08:32:54Z 2019-12-06T18:48:16Z 2012 2012 Journal Article Yang, G., Wu, N., Chen, T., Sun, K., & Zhao, Y. (2012). Theoretical Examination of Long-Range Energy Propagation in Nano-Engineered Light-Harvesting Antenna Arrays. Journal of Physical Chemistry C, 116, 3747−3756. https://hdl.handle.net/10356/93944 http://hdl.handle.net/10220/7683 10.1021/jp209293k 163538 en Journal of physical chemistry C © 2012 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Physical Chemistry C, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1021/jp209293k]. 20 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials Yang, Guangcan Wu, Ning Chen, Tuo Sun, Kewei Zhao, Yang Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays |
| title | Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays |
| title_full | Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays |
| title_fullStr | Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays |
| title_full_unstemmed | Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays |
| title_short | Theoretical examination of long-range energy propagation in nano-engineered light-harvesting antenna arrays |
| title_sort | theoretical examination of long range energy propagation in nano engineered light harvesting antenna arrays |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/93944 http://hdl.handle.net/10220/7683 |
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