Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling
In this paper, we first elaborate on the effects of surface plasmon (SP) coupling on the modulation responses of the emission of a light-emitting diode (LED) and its down-converted lights through colloidal quantum dots (QDs). The results of our past efforts for this subject are briefly discussed. Th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/6/1957 |
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| author | Shaobo Yang Po-Yu Chen Chia-Chun Ni Jun-Chen Chen Zong-Han Li Yang Kuo Chih-Chung Yang Ta-Cheng Hsu Chi-Ling Lee |
| author_facet | Shaobo Yang Po-Yu Chen Chia-Chun Ni Jun-Chen Chen Zong-Han Li Yang Kuo Chih-Chung Yang Ta-Cheng Hsu Chi-Ling Lee |
| author_sort | Shaobo Yang |
| collection | DOAJ |
| description | In this paper, we first elaborate on the effects of surface plasmon (SP) coupling on the modulation responses of the emission of a light-emitting diode (LED) and its down-converted lights through colloidal quantum dots (QDs). The results of our past efforts for this subject are briefly discussed. The discussions lay the foundation for the presentation of the new experimental data of such down-converted lights in this paper. In particular, the enhancement of the modulation bandwidth (MB) of a QD-based converted light through SP coupling is demonstrated. By linking green-emitting QDs (GQDs) and/or red-emitting QDs (RQDs) with synthesized Ag nano-plates via surface modifications and placing them on a blue-emitting LED, the MBs of the converted green and red emissions are significantly increased through the induced SP coupling of the Ag nano-plates. When both GQD and RQD exist and are closely spaced in a sample, the energy transfer processes of emission-reabsorption and Förster resonance energy transfer from GQD into RQD occur, leading to the increase (decrease) in the MB of green (red) light. With SP coupling, the MB of a mixed light is significantly enhanced. |
| first_indexed | 2024-03-09T13:09:25Z |
| format | Article |
| id | doaj.art-2c31bac2e5d644a9ab807f01ba16c714 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T13:09:25Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-2c31bac2e5d644a9ab807f01ba16c7142023-11-30T21:43:48ZengMDPI AGMolecules1420-30492022-03-01276195710.3390/molecules27061957Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon CouplingShaobo Yang0Po-Yu Chen1Chia-Chun Ni2Jun-Chen Chen3Zong-Han Li4Yang Kuo5Chih-Chung Yang6Ta-Cheng Hsu7Chi-Ling Lee8Institute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, TaiwanInstitute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, TaiwanInstitute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, TaiwanInstitute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, TaiwanInstitute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, TaiwanDepartment of Energy and Refrigerating Air-Conditioning Engineering, Tungnan University, 152 Beishen Road, Section 3, New Taipei City 22202, TaiwanInstitute of Photonics and Optoelectronics, Department of Electrical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, TaiwanUnikorn Semiconductor Corp., No. 5, Li-hsin 5th Rd., Hsinchu Science Park, Hsinchu 30078, TaiwanEpistar Corp., No. 5, Li-hsin 5th Rd., Hsinchu Science Park, Hsinchu 30078, TaiwanIn this paper, we first elaborate on the effects of surface plasmon (SP) coupling on the modulation responses of the emission of a light-emitting diode (LED) and its down-converted lights through colloidal quantum dots (QDs). The results of our past efforts for this subject are briefly discussed. The discussions lay the foundation for the presentation of the new experimental data of such down-converted lights in this paper. In particular, the enhancement of the modulation bandwidth (MB) of a QD-based converted light through SP coupling is demonstrated. By linking green-emitting QDs (GQDs) and/or red-emitting QDs (RQDs) with synthesized Ag nano-plates via surface modifications and placing them on a blue-emitting LED, the MBs of the converted green and red emissions are significantly increased through the induced SP coupling of the Ag nano-plates. When both GQD and RQD exist and are closely spaced in a sample, the energy transfer processes of emission-reabsorption and Förster resonance energy transfer from GQD into RQD occur, leading to the increase (decrease) in the MB of green (red) light. With SP coupling, the MB of a mixed light is significantly enhanced.https://www.mdpi.com/1420-3049/27/6/1957surface plasmonmodulation bandwidthphoton down-conversioncolloidal quantum dotlight-emitting diodeFörster resonance energy transfer |
| spellingShingle | Shaobo Yang Po-Yu Chen Chia-Chun Ni Jun-Chen Chen Zong-Han Li Yang Kuo Chih-Chung Yang Ta-Cheng Hsu Chi-Ling Lee Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling Molecules surface plasmon modulation bandwidth photon down-conversion colloidal quantum dot light-emitting diode Förster resonance energy transfer |
| title | Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling |
| title_full | Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling |
| title_fullStr | Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling |
| title_full_unstemmed | Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling |
| title_short | Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling |
| title_sort | enhancement of the modulation response of quantum dot based down converted light through surface plasmon coupling |
| topic | surface plasmon modulation bandwidth photon down-conversion colloidal quantum dot light-emitting diode Förster resonance energy transfer |
| url | https://www.mdpi.com/1420-3049/27/6/1957 |
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