Enhanced performance of novel calcium/aluminum co-doped zinc oxide for CO2 sensors
Calcium/aluminum co-doped zinc oxide (ZnO:(Ca,Al)) nanoparticles (NPs), with 1 at% of Al and different Ca (1–5 at%) content, have been successfully synthesized by a simple sol-gel method. Synthesized nanoparticle samples were used to fabricate thick film resistive semiconductor gas sensors for CO2 d...
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| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2017-02, Vol.239, p.36-44 |
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| container_title | Sensors and actuators. B, Chemical |
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| creator | Dhahri, R. Leonardi, S.G. Hjiri, M. Mir, L. El Bonavita, A. Donato, N. Iannazzo, D. Neri, G. |
| description | Calcium/aluminum co-doped zinc oxide (ZnO:(Ca,Al)) nanoparticles (NPs), with 1 at% of Al and different Ca (1–5 at%) content, have been successfully synthesized by a simple sol-gel method. Synthesized nanoparticle samples were used to fabricate thick film resistive semiconductor gas sensors for CO2 detection in air. The screen-printed sensing layer on the ceramic substrate has been characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence (PL) analysis to assess the morphological, microstructural properties and reveal defect features, respectively. Sensing tests demonstrated the strong influence of the Ca and Al on the sensing performance towards CO2. Light excitation by means of an UV source (400nm) has been used to enhance the sensor performance. The positive influence of humidity on the sensor performance was also established. The optimized sensor, based on ZnO doped with 3 at% Ca and 1 at% Al showed promising performances towards CO2, ensuring high response and fast dynamics at operating temperature as low as 200°C. |
| doi_str_mv | 10.1016/j.snb.2016.07.155 |
| format | Article |
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Light excitation by means of an UV source (400nm) has been used to enhance the sensor performance. The positive influence of humidity on the sensor performance was also established. The optimized sensor, based on ZnO doped with 3 at% Ca and 1 at% Al showed promising performances towards CO2, ensuring high response and fast dynamics at operating temperature as low as 200°C.</description><identifier>ISSN: 0925-4005</identifier><identifier>EISSN: 1873-3077</identifier><identifier>DOI: 10.1016/j.snb.2016.07.155</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Aluminum ; Ca and Al co-doped ZnO ; Calcium ; Carbon dioxide ; CO2 sensor ; Detection ; Nanoparticles ; Semiconductors ; Sensors ; Sol-gel ; UV irradiation ; Zinc oxide</subject><ispartof>Sensors and actuators. 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El</creatorcontrib><creatorcontrib>Bonavita, A.</creatorcontrib><creatorcontrib>Donato, N.</creatorcontrib><creatorcontrib>Iannazzo, D.</creatorcontrib><creatorcontrib>Neri, G.</creatorcontrib><title>Enhanced performance of novel calcium/aluminum co-doped zinc oxide for CO2 sensors</title><title>Sensors and actuators. B, Chemical</title><description>Calcium/aluminum co-doped zinc oxide (ZnO:(Ca,Al)) nanoparticles (NPs), with 1 at% of Al and different Ca (1–5 at%) content, have been successfully synthesized by a simple sol-gel method. Synthesized nanoparticle samples were used to fabricate thick film resistive semiconductor gas sensors for CO2 detection in air. The screen-printed sensing layer on the ceramic substrate has been characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence (PL) analysis to assess the morphological, microstructural properties and reveal defect features, respectively. Sensing tests demonstrated the strong influence of the Ca and Al on the sensing performance towards CO2. Light excitation by means of an UV source (400nm) has been used to enhance the sensor performance. The positive influence of humidity on the sensor performance was also established. The optimized sensor, based on ZnO doped with 3 at% Ca and 1 at% Al showed promising performances towards CO2, ensuring high response and fast dynamics at operating temperature as low as 200°C.</description><subject>Aluminum</subject><subject>Ca and Al co-doped ZnO</subject><subject>Calcium</subject><subject>Carbon dioxide</subject><subject>CO2 sensor</subject><subject>Detection</subject><subject>Nanoparticles</subject><subject>Semiconductors</subject><subject>Sensors</subject><subject>Sol-gel</subject><subject>UV irradiation</subject><subject>Zinc oxide</subject><issn>0925-4005</issn><issn>1873-3077</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNotkE9LAzEQxYMoWKsfwFuOXnY7STbJFk9S6h8oFETPYZtMMGU3qZtuET-9u9TTvIH3hnk_Qu4ZlAyYWuzLHHclH2UJumRSXpAZq7UoBGh9SWaw5LKoAOQ1ucl5DwCVUDAj7-v41USLjh6w96nvpoUmT2M6YUtt09owdIumHboQh47aVLh0GO2_IVqafoJDOsboastpxphTn2_JlW_ajHf_c04-n9cfq9dis315Wz1tCuQVHAstlKqdlkJLVgFnWHvEeld7x12lwSIqtwTll16i5VwornZe2bETVk5oJ-bk4Xz30KfvAfPRdCFbbNsmYhqyYbWqpGRiTMzJ49mK4z-ngL3JNuBUO_Roj8alYBiYiaTZm5GkmUga0GYkKf4AnaFoOg</recordid><startdate>201702</startdate><enddate>201702</enddate><creator>Dhahri, R.</creator><creator>Leonardi, S.G.</creator><creator>Hjiri, M.</creator><creator>Mir, L. 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El ; Bonavita, A. ; Donato, N. ; Iannazzo, D. ; Neri, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e240t-73668d7537514021e8fee8b8fd2d470cee6d906f9f5ec223626bf6c873e4d37d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Aluminum</topic><topic>Ca and Al co-doped ZnO</topic><topic>Calcium</topic><topic>Carbon dioxide</topic><topic>CO2 sensor</topic><topic>Detection</topic><topic>Nanoparticles</topic><topic>Semiconductors</topic><topic>Sensors</topic><topic>Sol-gel</topic><topic>UV irradiation</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dhahri, R.</creatorcontrib><creatorcontrib>Leonardi, S.G.</creatorcontrib><creatorcontrib>Hjiri, M.</creatorcontrib><creatorcontrib>Mir, L. 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B, Chemical</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dhahri, R.</au><au>Leonardi, S.G.</au><au>Hjiri, M.</au><au>Mir, L. El</au><au>Bonavita, A.</au><au>Donato, N.</au><au>Iannazzo, D.</au><au>Neri, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced performance of novel calcium/aluminum co-doped zinc oxide for CO2 sensors</atitle><jtitle>Sensors and actuators. B, Chemical</jtitle><date>2017-02</date><risdate>2017</risdate><volume>239</volume><spage>36</spage><epage>44</epage><pages>36-44</pages><issn>0925-4005</issn><eissn>1873-3077</eissn><abstract>Calcium/aluminum co-doped zinc oxide (ZnO:(Ca,Al)) nanoparticles (NPs), with 1 at% of Al and different Ca (1–5 at%) content, have been successfully synthesized by a simple sol-gel method. Synthesized nanoparticle samples were used to fabricate thick film resistive semiconductor gas sensors for CO2 detection in air. The screen-printed sensing layer on the ceramic substrate has been characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence (PL) analysis to assess the morphological, microstructural properties and reveal defect features, respectively. Sensing tests demonstrated the strong influence of the Ca and Al on the sensing performance towards CO2. Light excitation by means of an UV source (400nm) has been used to enhance the sensor performance. The positive influence of humidity on the sensor performance was also established. The optimized sensor, based on ZnO doped with 3 at% Ca and 1 at% Al showed promising performances towards CO2, ensuring high response and fast dynamics at operating temperature as low as 200°C.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.snb.2016.07.155</doi><tpages>9</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminum Ca and Al co-doped ZnO Calcium Carbon dioxide CO2 sensor Detection Nanoparticles Semiconductors Sensors Sol-gel UV irradiation Zinc oxide |
| title | Enhanced performance of novel calcium/aluminum co-doped zinc oxide for CO2 sensors |
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