High-efficiency silicon LED with ultra-wideband emission from visible to infrared at room temperature
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915439181824000 |
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| author | Li, Xiaobo He, Jiajing Dan, Yaping Wang, Jun |
| author_facet | Li, Xiaobo He, Jiajing Dan, Yaping Wang, Jun |
| contents | The primary challenge in silicon photonics is achieving efficient luminescence in the communication band, crucial for its large-scale application. Despite significant efforts, silicon light sources still suffer from low efficiency and limited emission wavelengths. We addressed this by achieving broadband luminescence from 600-1650 nm through femtosecond laser annealing of 220nm standard SOI, resulting in an external quantum efficiency exceeding 0.26% and an output optical power density greater than 20 W/cm2, several orders of magnitude higher than other silicon-based LEDs in performance. The broadband LED has potential applications in optical inspection, gas sensing, optical coherence tomography, optical communication, and more. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_07352 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-efficiency silicon LED with ultra-wideband emission from visible to infrared at room temperature Li, Xiaobo He, Jiajing Dan, Yaping Wang, Jun Optics Applied Physics The primary challenge in silicon photonics is achieving efficient luminescence in the communication band, crucial for its large-scale application. Despite significant efforts, silicon light sources still suffer from low efficiency and limited emission wavelengths. We addressed this by achieving broadband luminescence from 600-1650 nm through femtosecond laser annealing of 220nm standard SOI, resulting in an external quantum efficiency exceeding 0.26% and an output optical power density greater than 20 W/cm2, several orders of magnitude higher than other silicon-based LEDs in performance. The broadband LED has potential applications in optical inspection, gas sensing, optical coherence tomography, optical communication, and more. |
| title | High-efficiency silicon LED with ultra-wideband emission from visible to infrared at room temperature |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2508.07352 |