دورية أكاديمية
Analysis and design of InAs nanowire array based ultra broadband perfect absorber.
| العنوان: | Analysis and design of InAs nanowire array based ultra broadband perfect absorber. |
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| المؤلفون: | Hassan MM; Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Bangladesh samiasubrina@eee.buet.ac.bd.; Institute of Information and Communication Technology, Bangladesh University of Engineering and Technology Bangladesh hmuntasir@iict.buet.ac.bd., Islam F; Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Bangladesh samiasubrina@eee.buet.ac.bd., Baten MZ; Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Bangladesh samiasubrina@eee.buet.ac.bd., Subrina S; Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Bangladesh samiasubrina@eee.buet.ac.bd. |
| المصدر: | RSC advances [RSC Adv] 2021 Nov 23; Vol. 11 (59), pp. 37595-37603. Date of Electronic Publication: 2021 Nov 23 (Print Publication: 2021). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101581657 Publication Model: eCollection Cited Medium: Internet ISSN: 2046-2069 (Electronic) Linking ISSN: 20462069 NLM ISO Abbreviation: RSC Adv Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: Cambridge [England] : Royal Society of Chemistry, [2011]- |
| مستخلص: | An ultra-broadband perfect absorber has a wide range of applications which include solar energy harvesting, imaging, photodetection etc. In this regard, InAs nanowire (NW) based structure is investigated in this work for achieving an ultra broadband perfect absorber. Finite difference time domain (FDTD) based numerical analysis has been performed to optimize the InAs nanowire based structure to obtain an efficient light absorber by varying different dimensional parameters. Mie theory and guided mode resonance based theoretical analysis is developed to validate the results and to get an insight into the tunability of the nanowire based structure. Moreover, the theoretical analysis elucidates the underlying physics of light absorption in nanowires. To achieve ultra broadband absorption, multi radii InAs nanowire based arrays are investigated and it is found that they exhibit superior performance compared to single radius NW based structures. The computed light absorption efficiency (LAE) and short circuit current density values are enhanced to 97% and 40.15 mA cm -2 at 10° angle of incidence for the optimized quad radii NW array within the wavelength range of 300 nm to 1000 nm and 300 nm to 1200 nm, respectively. Moreover, the absorption spectra for these structures are polarization independent and exhibit robust performance for varying angle of incidence. In addition, arrangement of the NW array (hexagonal or square) has negligible effect on the absorption spectra. Such ultra-broadband absorption capability of the proposed structure compared to existing works suggests that the InAs nanowire based structure is very promising as light absorber with prospects in the fields of photo detection, solar power generation, perfect cloaking, photochemistry and other thin film photonic devices. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.) |
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| تواريخ الأحداث: | Date Created: 20220502 Latest Revision: 20220716 |
| رمز التحديث: | 20221213 |
| مُعرف محوري في PubMed: | PMC9043912 |
| DOI: | 10.1039/d1ra06812a |
| PMID: | 35496425 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 2046-2069 |
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| DOI: | 10.1039/d1ra06812a |