A Dual Four-Quadrant Photodetector Based on Near-Infrared Enhanced Nanometer Black Silicon
| العنوان: | A Dual Four-Quadrant Photodetector Based on Near-Infrared Enhanced Nanometer Black Silicon |
|---|---|
| المؤلفون: | Zhongyuan Liu, Yi Zhang, Jian Lv, Guanyu Mi, Yun Zhou, Longcheng Que |
| المصدر: | Nanoscale Research Letters, Vol 16, Iss 1, Pp 1-10 (2021) Nanoscale Research Letters |
| بيانات النشر: | SpringerOpen, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, Silicon, Nano Express, Near infrared enhanced, Annealing (metallurgy), business.industry, Near-infrared spectroscopy, Black silicon, chemistry.chemical_element, Photodetector, Molar absorptivity, Dual four-quadrant, Condensed Matter Physics, chemistry.chemical_compound, chemistry, Night vision, lcsh:TA401-492, Optoelectronics, General Materials Science, lcsh:Materials of engineering and construction. Mechanics of materials, business, Dark current |
| الوصف: | In this paper, a new preparation process of nanometer black silicon is proposed, by which high trapping optical Se-doped black silicon material is prepared by nanosecond pulsed laser ablation of high-resistance silicon coated with Se film in HF gas atmosphere. The results indicate that the average absorptivity of 400–2200 nm band before annealing is 96.81%, and the absorptivity maintains at 81.28% after annealing at 600 degrees. Meanwhile, black silicon prepared under the new technology is used in double four-quadrant photodetector, the results show that, at a reversed bias of 50 V, the average unit responsiveness is 0.528 A/W at 1060 nm and 0.102 A/W at 1180 nm, and the average dark current is 2 nA at inner quadrants and 8 nA at outer quadrants. The dual four-quadrant photodetector based on near-infrared enhanced black silicon has the advantages of high responsiveness, low dark current, fast response and low crosstalk, hence it is appropriate for a series of direction of applications, such as night vision detection and medical field. |
| اللغة: | English |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::956472591c1093ce65aeff509e26e9eaTest https://doaj.org/article/06a969cc455d4427bd785062617043bcTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....956472591c1093ce65aeff509e26e9ea |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |