Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles
Devices operating with excitons exhibit promising prospects for overcoming the dilemma of response time and integration in electron or/and photon based system. Strain engineering has emerged as an effective approach to modulate exciton transport and dynamics, with bubbles induced biaxial strain attr...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Futures |
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| Online Access: | https://doi.org/10.1088/2752-5724/adc8c1 |
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| author | Wenqi Qian Haiyi Liu Guangyi Tao Fangxun Liu Sihan Lin Tengteng Gao Xueying Wang Qihong Hu Dalin Zhang Dong Xiang Lie Lin Pengfei Qi Zheyu Fang Weiwei Liu |
| author_facet | Wenqi Qian Haiyi Liu Guangyi Tao Fangxun Liu Sihan Lin Tengteng Gao Xueying Wang Qihong Hu Dalin Zhang Dong Xiang Lie Lin Pengfei Qi Zheyu Fang Weiwei Liu |
| author_sort | Wenqi Qian |
| collection | DOAJ |
| description | Devices operating with excitons exhibit promising prospects for overcoming the dilemma of response time and integration in electron or/and photon based system. Strain engineering has emerged as an effective approach to modulate exciton transport and dynamics, with bubbles induced biaxial strain attracting particular attention for nanoscopic manipulation of exciton flux. However, the unintentionally produced bubbles are completely stochastic in dimensions and morphology, thereby the active and controllable bubbles formation still remain challenge, which is imperative for modulating excitonic and opt-electric performance on demand. Here, we propose the annealing-driven reassembly of micro-bubbles to create the controllable artificial potential landscapes in atomically thin semiconductor, facilitating the active manipulation of exciton flux at room temperature. Correlating micro PL mappings with strain maps calculated from AFM topography and strain modeling, demonstrates the efficient localized exciton emission and exciton funneling in spectral. The imaging of exciton transport and emission provide more intuitive evidence in spatial that excitons flow towards bubble center from excitation location driven by the conventional diffusion and strain gradient induced drift effect, supported by drift-diffusion model. These findings demonstrate the great potential to control exciton dynamics on-demand through annealing driven reassembled micro-bubbles, and lay the foundation for promising applications in high-performance sensing, energy harvesting, and quantum information processing. |
| format | Article |
| id | doaj-art-6353f04d2349411bb7e16a1c4b51fb4d |
| institution | DOAJ |
| issn | 2752-5724 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Futures |
| spelling | doaj-art-6353f04d2349411bb7e16a1c4b51fb4d2025-08-20T03:10:27ZengIOP PublishingMaterials Futures2752-57242025-01-014202530110.1088/2752-5724/adc8c1Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubblesWenqi Qian0Haiyi Liu1Guangyi Tao2Fangxun Liu3Sihan Lin4Tengteng Gao5Xueying Wang6Qihong Hu7Dalin Zhang8Dong Xiang9Lie Lin10Pengfei Qi11https://orcid.org/0000-0003-2885-2072Zheyu Fang12Weiwei Liu13Institute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaSchool of Physics, State Key Laboratory for Mesoscopic Physics, Academy for Advanced Interdisciplinary Studies, Collaborative Innovation Center of Quantum Matter, Nano-optoelectronics Frontier Center of Ministry of Education, Peking University , Beijing 100871, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaSchool of Physics, State Key Laboratory for Mesoscopic Physics, Academy for Advanced Interdisciplinary Studies, Collaborative Innovation Center of Quantum Matter, Nano-optoelectronics Frontier Center of Ministry of Education, Peking University , Beijing 100871, People’s Republic of ChinaInstitute of Modern Optics, Nankai University , Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, People’s Republic of ChinaDevices operating with excitons exhibit promising prospects for overcoming the dilemma of response time and integration in electron or/and photon based system. Strain engineering has emerged as an effective approach to modulate exciton transport and dynamics, with bubbles induced biaxial strain attracting particular attention for nanoscopic manipulation of exciton flux. However, the unintentionally produced bubbles are completely stochastic in dimensions and morphology, thereby the active and controllable bubbles formation still remain challenge, which is imperative for modulating excitonic and opt-electric performance on demand. Here, we propose the annealing-driven reassembly of micro-bubbles to create the controllable artificial potential landscapes in atomically thin semiconductor, facilitating the active manipulation of exciton flux at room temperature. Correlating micro PL mappings with strain maps calculated from AFM topography and strain modeling, demonstrates the efficient localized exciton emission and exciton funneling in spectral. The imaging of exciton transport and emission provide more intuitive evidence in spatial that excitons flow towards bubble center from excitation location driven by the conventional diffusion and strain gradient induced drift effect, supported by drift-diffusion model. These findings demonstrate the great potential to control exciton dynamics on-demand through annealing driven reassembled micro-bubbles, and lay the foundation for promising applications in high-performance sensing, energy harvesting, and quantum information processing.https://doi.org/10.1088/2752-5724/adc8c1annealingmicro-bubblesbiaxial strainexciton funneling |
| spellingShingle | Wenqi Qian Haiyi Liu Guangyi Tao Fangxun Liu Sihan Lin Tengteng Gao Xueying Wang Qihong Hu Dalin Zhang Dong Xiang Lie Lin Pengfei Qi Zheyu Fang Weiwei Liu Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles Materials Futures annealing micro-bubbles biaxial strain exciton funneling |
| title | Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles |
| title_full | Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles |
| title_fullStr | Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles |
| title_full_unstemmed | Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles |
| title_short | Exciton funneling in 2D artificial potential landscapes decorated by reassembled micro-bubbles |
| title_sort | exciton funneling in 2d artificial potential landscapes decorated by reassembled micro bubbles |
| topic | annealing micro-bubbles biaxial strain exciton funneling |
| url | https://doi.org/10.1088/2752-5724/adc8c1 |
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