Power-Dependent Investigation of Photo-Response from GeSn-Based p-i-n Photodetector Operating at High Power Density
| Autor: | Chiao Chang, Hung-Hsiang Cheng, Gary A. Sevison, Joshua R. Hendrickson, Zairui Li, Imad Agha, Jay Mathews, Richard A. Soref, Greg Sun |
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| Rok vydání: | 2021 |
| Předmět: |
GeSn
photodetector photo-response Technology Microscopy QC120-168.85 genetic structures QH201-278.5 Engineering (General). Civil engineering (General) eye diseases TK1-9971 Descriptive and experimental mechanics General Materials Science sense organs Electrical engineering. Electronics. Nuclear engineering TA1-2040 |
| Zdroj: | Materials, Vol 15, Iss 989, p 989 (2022) Materials; Volume 15; Issue 3; Pages: 989 |
| ISSN: | 1996-1944 |
| Popis: | We report an investigation on the photo-response from a GeSn-based photodetector using a tunable laser with a range of incident light power. An exponential increase in photocurrent and an exponential decay of responsivity with increase in incident optical power intensity were observed at higher optical power range. Time-resolved measurement provided evidence that indicated monomolecular and bimolecular recombination mechanisms for the photo-generated carriers for different incident optical power intensities. This investigation establishes the appropriate range of optical power intensity for GeSn-based photodetector operation. |
| Databáze: | OpenAIRE |
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