The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes
In this paper, the results of the electrical, noise, and optical characterization of p-i-n and p-B-i-n diodes with AlSb and 4 ML AlSb/8 ML GaSb superlattice barriers in High-Operating Temperature conditions, are presented. Experimental and theoretical noise parameters were compared. Both dark curren...
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MDPI AG
2021
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oai:doaj.org-article:9fa9d1d9ce2d4846b4c165a09d933a602021-11-11T19:02:45ZThe Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes10.3390/s212170051424-8220https://doaj.org/article/9fa9d1d9ce2d4846b4c165a09d933a602021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7005https://doaj.org/toc/1424-8220In this paper, the results of the electrical, noise, and optical characterization of p-i-n and p-B-i-n diodes with AlSb and 4 ML AlSb/8 ML GaSb superlattice barriers in High-Operating Temperature conditions, are presented. Experimental and theoretical noise parameters were compared. Both dark current and noise analysis showed that the p-B<sub>p_bulk</sub>-i-n bariode had the best performance. P-i-n photodiodes had the highest experimental value of specific detectivity (D*) of 6.16 × 10<sup>9</sup> Jones at 210 K and zero bias. At about −1 V reverse bias, the bariode with AlSb/GaSb electron barrier caught up to it and both devices achieved D* = (1–1.1) × 10<sup>8</sup> Jones. Further optimization of the superlattice-based electron barrier should result in the improvement of bariode performance at a smaller bias, at which better noise performance is more pronounced. It was shown that neglecting the low-frequency noise component can lead to a significant overestimation of detectivity. The simple method of incorporation of low-frequency noise contribution in the detectivity calculation, without time-consuming measurements, has been proposed.Krzysztof CzubaŁukasz CiuraIwona SankowskaEwa Papis-PolakowskaAgata JasikMDPI AGarticleinfrared sensorsInAs/GaSb superlatticebarrier photodiodenoise performancespecific detectivitylow-frequency noiseChemical technologyTP1-1185ENSensors, Vol 21, Iss 7005, p 7005 (2021) |
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DOAJ |
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infrared sensors InAs/GaSb superlattice barrier photodiode noise performance specific detectivity low-frequency noise Chemical technology TP1-1185 |
| spellingShingle |
infrared sensors InAs/GaSb superlattice barrier photodiode noise performance specific detectivity low-frequency noise Chemical technology TP1-1185 Krzysztof Czuba Łukasz Ciura Iwona Sankowska Ewa Papis-Polakowska Agata Jasik The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes |
| description |
In this paper, the results of the electrical, noise, and optical characterization of p-i-n and p-B-i-n diodes with AlSb and 4 ML AlSb/8 ML GaSb superlattice barriers in High-Operating Temperature conditions, are presented. Experimental and theoretical noise parameters were compared. Both dark current and noise analysis showed that the p-B<sub>p_bulk</sub>-i-n bariode had the best performance. P-i-n photodiodes had the highest experimental value of specific detectivity (D*) of 6.16 × 10<sup>9</sup> Jones at 210 K and zero bias. At about −1 V reverse bias, the bariode with AlSb/GaSb electron barrier caught up to it and both devices achieved D* = (1–1.1) × 10<sup>8</sup> Jones. Further optimization of the superlattice-based electron barrier should result in the improvement of bariode performance at a smaller bias, at which better noise performance is more pronounced. It was shown that neglecting the low-frequency noise component can lead to a significant overestimation of detectivity. The simple method of incorporation of low-frequency noise contribution in the detectivity calculation, without time-consuming measurements, has been proposed. |
| format |
article |
| author |
Krzysztof Czuba Łukasz Ciura Iwona Sankowska Ewa Papis-Polakowska Agata Jasik |
| author_facet |
Krzysztof Czuba Łukasz Ciura Iwona Sankowska Ewa Papis-Polakowska Agata Jasik |
| author_sort |
Krzysztof Czuba |
| title |
The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes |
| title_short |
The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes |
| title_full |
The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes |
| title_fullStr |
The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes |
| title_full_unstemmed |
The Role of Noise in Specific Detectivity of InAs/GaSb Superlattice MWIR Bariodes |
| title_sort |
role of noise in specific detectivity of inas/gasb superlattice mwir bariodes |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/9fa9d1d9ce2d4846b4c165a09d933a60 |
| work_keys_str_mv |
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| _version_ |
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