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深紫外氮化铝镓激光二极管的性能增强

Performance enhancement of ultraviolet-C AlGaN laser diode.

作者信息

Ali Shazma, Usman Muhammad

机构信息

Faculty of Engineering Sciences, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Khyber Pakhtunkhwa 23460 Pakistan.

出版信息

Eur Phys J Plus. 2022;137(7):771. doi: 10.1140/epjp/s13360-022-03007-9. Epub 2022 Jul 5.

DOI:10.1140/epjp/s13360-022-03007-9
PMID:35813181
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9255468/
Abstract

The internal quantum efficiency (IQE) of deep ultraviolet (DUV) AlGaN-based laser diode (LD) emitting, in the wavelength region between 260 and 279 nm, is improved by proposing a quaternary-layer AlGaInN between the p-doped electron blocking layer (EBL) and the p-doped waveguide. This leads to an increase in the carrier concentration in the active region of the proposed LD. The radiative recombination rate is improved by 74% in the proposed LD. The current density is reduced from 21 kA/cm (reference LD) to 6.13 kA/cm (proposed LD). The proposed LD has a 71% higher internal quantum efficiency than the reference LD. Using SiLENSe™ 6.3, we analyzed both structures numerically.

摘要

通过在p型掺杂电子阻挡层（EBL）和p型掺杂波导之间引入四元层AlGaInN，提高了发射波长在260至279nm之间的深紫外（DUV）AlGaN基激光二极管（LD）的内量子效率（IQE）。这导致了所提出的LD有源区中载流子浓度的增加。在所提出的LD中，辐射复合率提高了74%。电流密度从21 kA/cm（参考LD）降低到6.13 kA/cm（所提出的LD）。所提出的LD的内量子效率比参考LD高71%。我们使用SiLENSe™ 6.3对这两种结构进行了数值分析。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/d2ca1f5d2938/13360_2022_3007_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/b4f8ee753a2a/13360_2022_3007_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/9f891a42f102/13360_2022_3007_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/36ce082407cf/13360_2022_3007_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/cff3843d3f56/13360_2022_3007_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/94d69de2cca8/13360_2022_3007_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/e465bd7ef27d/13360_2022_3007_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/d2ca1f5d2938/13360_2022_3007_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/b4f8ee753a2a/13360_2022_3007_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/9f891a42f102/13360_2022_3007_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/36ce082407cf/13360_2022_3007_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/cff3843d3f56/13360_2022_3007_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/94d69de2cca8/13360_2022_3007_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/e465bd7ef27d/13360_2022_3007_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/677b/9255468/d2ca1f5d2938/13360_2022_3007_Fig7_HTML.jpg

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