WO3/NiO composite nanoparticles as promising material for low power UV-light sensor.
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| Title: | WO |
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| Authors: | Pojar, Thsurhotho1 (AUTHOR) ethothopojar3@gmail.com, Kera, Kevileno1 (AUTHOR) alenokera3@gmail.com, Chetri, Priyanka2 (AUTHOR) priyankachetri17@gmail.com, Kumar, Mritunjay1 (AUTHOR) mritunjay.19february@gmail.com, Dhar, Jay Chandra1 (AUTHOR) jaydhar@gmail.com |
| Source: | Applied Physics A: Materials Science & Processing. Feb2025, Vol. 131 Issue 2, p1-8. 8p. |
| Subjects: | Radiofrequency sputtering, Photodetectors, Detectors, Nanoparticles, Nanocomposite materials |
| Abstract: | In this article, we have demonstrated WO3/NiO nanocomposite (NC) based UV photodetector (PD) synthesized using RF sputtering technique. The fabricated WO3/NiO NC were porous and crystalline in nature with average diameter of ~ 29.8 nm. This fabricated WO3/NiO NC photodetector exhibited a low dark current value of 0.32 µA at -1 V applied bias. Moreover, the device showed high photo sensitivity (36), and responsivity (2.24 mA/W) without any applied bias demonstrating its self-powered application. A high detectivity of 3.82 × Jones along with low noise equivalent power (NEP) of 88 pW at 0 V was obtained under the illumination of UV light. The WO3/NiO NC detector also showed fast switching response with rise time of 0.65 s and fall time of 0.33 s (at 0 V) demonstration its application as a low power photodetector. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | In this article, we have demonstrated WO3/NiO nanocomposite (NC) based UV photodetector (PD) synthesized using RF sputtering technique. The fabricated WO3/NiO NC were porous and crystalline in nature with average diameter of ~ 29.8 nm. This fabricated WO3/NiO NC photodetector exhibited a low dark current value of 0.32 µA at -1 V applied bias. Moreover, the device showed high photo sensitivity (36), and responsivity (2.24 mA/W) without any applied bias demonstrating its self-powered application. A high detectivity of 3.82 × Jones along with low noise equivalent power (NEP) of 88 pW at 0 V was obtained under the illumination of UV light. The WO3/NiO NC detector also showed fast switching response with rise time of 0.65 s and fall time of 0.33 s (at 0 V) demonstration its application as a low power photodetector. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 09478396 |
| DOI: | 10.1007/s00339-025-08272-w |
