InPBi Quantum Dots for Super-Luminescence Diodes
| العنوان: | InPBi Quantum Dots for Super-Luminescence Diodes |
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| المؤلفون: | Zhongyunshen Zhu, Liyao Zhang, Qimiao Chen, Shumin Wang, Yuxin Song |
| المساهمون: | School of Electrical and Electronic Engineering |
| المصدر: | Nanomaterials, Vol 8, Iss 9, p 705 (2018) Nanomaterials Volume 8 Issue 9 |
| بيانات النشر: | MDPI AG, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Photoluminescence, Materials science, General Chemical Engineering, finite element method, Quantum Dot, 02 engineering and technology, 01 natural sciences, Article, InPBi, lcsh:Chemistry, Condensed Matter::Materials Science, 0103 physical sciences, General Materials Science, Emission spectrum, super-luminescent diode, Diode, 010302 applied physics, business.industry, quantum dot, 021001 nanoscience & nanotechnology, Superluminescent diode, Wavelength, emission spectrum, lcsh:QD1-999, Quantum dot, Engineering::Electrical and electronic engineering [DRNTU], Optoelectronics, Light emission, 0210 nano-technology, Luminescence, business |
| الوصف: | InPBi thin film has shown ultra-broad room temperature photoluminescence, which is promising for applications in super-luminescent diodes (SLDs) but met problems with low light emission efficiency. In this paper, InPBi quantum dot (QD) is proposed to serve as the active material for future InPBi SLDs. The quantum confinement for carriers and reduced spatial size of QD structure can improve light emission efficiently. We employ finite element method to simulate strain distribution inside QDs and use the result as input for calculating electronic properties. We systematically investigate different transitions involving carriers on the band edges and the deep levels as a function of Bi composition and InPBi QD geometry embedded in InAlAs lattice matched to InP. A flat QD shape with a moderate Bi content of a few percent over 3.2% would provide the optimal performance of SLDs with a bright and wide spectrum at a short center wavelength, promising for future optical coherence tomography applications. Published version |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2079-4991 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73b5f52367696c28d6974dc27745c2a5 http://www.mdpi.com/2079-4991/8/9/705 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....73b5f52367696c28d6974dc27745c2a5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20794991 |
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