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Multifunctional Three-in-One Sensor on t-ZnO for Ultraviolet and VOC Sensing for Bioengineering Applications

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dc.contributor.author NAGPAL, Rajat
dc.contributor.author LUPAN, Cristian
dc.contributor.author BÎRNAZ, Adrian
dc.contributor.author SEREACOV, Alexandr
dc.contributor.author GREVE, Erik
dc.contributor.author GRONENBERG, Monja
dc.contributor.author SIEBERT, Leonard
dc.contributor.author ADELUNG, Rainer
dc.contributor.author LUPAN, Oleg
dc.date.accessioned 2024-10-10T10:09:25Z
dc.date.available 2024-10-10T10:09:25Z
dc.date.issued 2024
dc.identifier.citation NAGPAL, Rajat; Cristian, LUPAN; Adrian, BÎRNAZ; Alexandr, SEREACOV; Erik, GREVE; Monja, GRONENBERG; Leonard, SIEBERT; Rainer, ADELUNG and Oleg, LUPAN. Multifunctional Three-in-One Sensor on t-ZnO for Ultraviolet and VOC Sensing for Bioengineering Applications. In: Biosensors, 2024, vol.14, no. 6, p293. ISSN 2079-6374. https://doi.org/10.3390/bios14060293 en_US
dc.identifier.issn 2079-6374
dc.identifier.uri https://doi.org/10.3390/bios14060293
dc.identifier.uri http://repository.utm.md/handle/5014/27974
dc.description.abstract Zinc oxide (ZnO) is considered to be one of the most explored and reliable sensing materials for UV detection due to its excellent properties, like a wide band gap and high exciton energy. Our current study on a photodetector based on tetrapodal ZnO (t-ZnO) reported an extremely high UV response of ~9200 for 394 nm UV illumination at 25 °C. The t-ZnO network structure and morphology were investigated using XRD and SEM. The sensor showed a UV/visible ratio of ~12 at 25 °C for 394 nm UV illumination and 443 nm visible illumination. By increasing the temperature, monotonic decreases in response and recovery time were observed. By increasing the bias voltage, the response time was found to decrease while the recovery time was increased. The maximum responsivity shifted to higher wavelengths from 394 nm to 400 nm by increasing the operating temperature from 25 °C to 100 °C. The t-ZnO networks exhibited gas-sensing performances at temperatures above 250 °C, and a maximum response of ~1.35 was recorded at 350 °C with a good repeatability and fast recovery in 16 s for 100 ppm of n-butanol vapor. This study demonstrated that t-ZnO networks are good biosensors that can be used for diverse biomedical applications like the sensing of VOCs (volatile organic compounds) and ultraviolet detection under a wide range of temperatures, and may find new possibilities in biosensing applications. en_US
dc.language.iso en en_US
dc.publisher Multidisciplinary Digital Publishing Institute en_US
dc.relation.ispartofseries Biosensors, 2024, vol.14, no. 6;
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject tetrapodal networks en_US
dc.subject optoelectronics en_US
dc.subject gas sensors en_US
dc.title Multifunctional Three-in-One Sensor on t-ZnO for Ultraviolet and VOC Sensing for Bioengineering Applications en_US
dc.type Article en_US


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