Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors
In this investigation, we employed a cost-efficient co-precipitation technique to synthesize nanostructures of Indium-doped ZnO, incorporating varying percentages of Indium (0.25 %, 0.5 %, 1 %, 2 %, and 4 %) into the ZnO lattice. These Indium atoms were introduced either by replacing oxygen (O2) or...
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KeAi Communications Co., Ltd.
2024-01-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666351123000451 |
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| author | Yogesh B. Waghadkar Govind Umarji Shankar S. Kekade Sunit Rane Ratna chauhan Muthupandian Ashokkumar Suresh W. Gosavi |
| author_facet | Yogesh B. Waghadkar Govind Umarji Shankar S. Kekade Sunit Rane Ratna chauhan Muthupandian Ashokkumar Suresh W. Gosavi |
| author_sort | Yogesh B. Waghadkar |
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| description | In this investigation, we employed a cost-efficient co-precipitation technique to synthesize nanostructures of Indium-doped ZnO, incorporating varying percentages of Indium (0.25 %, 0.5 %, 1 %, 2 %, and 4 %) into the ZnO lattice. These Indium atoms were introduced either by replacing oxygen (O2) or occupying tetrahedral interstitial spaces within the structure. The resultant materials exhibited an average crystal size ranging from approximately 5 to 10 nm and displayed a highly crystalline nature. The UV–visible spectroscopy of these synthesized materials, revealing an excitation spectrum spanning 380 nm–395 nm. Photoluminescence measurements showed two distinct emission peaks at 390 nm and 471 nm, originates from the recombination of the free excitons through an exciton-exciton collision process and the presence of defects or impurities in the In–ZnO nanostructures. Defects in the crystal lattice, such as oxygen vacancies or interstitial defects, can create energy levels within the bandgap. Subsequently, we evaluated the suitability of these Indium-doped ZnO nanostructures for light sensor applications. Response and recovery times to infrared (IR), visible, and ultraviolet (UV) light was recorded. Remarkably, the nanostructures exhibited exceptional response and recovery times, in UV light compared to their performance with IR and visible light. This significant performance of synthesized materials in UV light shows the cost-effective co-precipitation method in fabricating Indium-doped ZnO nanostructures for UV light sensing applications. |
| format | Article |
| id | doaj-art-faa2322446ff4991bcf9eed2258937ee |
| institution | Kabale University |
| issn | 2666-3511 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Sensors International |
| spelling | doaj-art-faa2322446ff4991bcf9eed2258937ee2025-01-04T04:57:07ZengKeAi Communications Co., Ltd.Sensors International2666-35112024-01-015100271Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensorsYogesh B. Waghadkar0Govind Umarji1Shankar S. Kekade2Sunit Rane3Ratna chauhan4Muthupandian Ashokkumar5Suresh W. Gosavi6Department of Electronics and Instrumentation Science, University of Pune, Pune, 411008, IndiaCentre for Materials for Electronics Technologies, Panchwati, Off Pashan Road, Pune, 411008, IndiaRadhabai Kale Mahila Mahavidyalaya, Ahmednagar, 414001, IndiaCentre for Materials for Electronics Technologies, Panchwati, Off Pashan Road, Pune, 411008, IndiaDepartment of Environmental Science, University of Pune, Pune, 411008, India; Corresponding author.School of Chemistry, University of Melbourne, VIC, 3010, AustraliaSchool of Chemistry, University of Melbourne, VIC, 3010, Australia; Photocatalysis International Research Center, Research Institute for Science & Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan; Department of Physics, Savitribai Phule Pune University, Pune, 411 007, India; Corresponding author. School of Chemistry, University of Melbourne, VIC, 3010, Australia.In this investigation, we employed a cost-efficient co-precipitation technique to synthesize nanostructures of Indium-doped ZnO, incorporating varying percentages of Indium (0.25 %, 0.5 %, 1 %, 2 %, and 4 %) into the ZnO lattice. These Indium atoms were introduced either by replacing oxygen (O2) or occupying tetrahedral interstitial spaces within the structure. The resultant materials exhibited an average crystal size ranging from approximately 5 to 10 nm and displayed a highly crystalline nature. The UV–visible spectroscopy of these synthesized materials, revealing an excitation spectrum spanning 380 nm–395 nm. Photoluminescence measurements showed two distinct emission peaks at 390 nm and 471 nm, originates from the recombination of the free excitons through an exciton-exciton collision process and the presence of defects or impurities in the In–ZnO nanostructures. Defects in the crystal lattice, such as oxygen vacancies or interstitial defects, can create energy levels within the bandgap. Subsequently, we evaluated the suitability of these Indium-doped ZnO nanostructures for light sensor applications. Response and recovery times to infrared (IR), visible, and ultraviolet (UV) light was recorded. Remarkably, the nanostructures exhibited exceptional response and recovery times, in UV light compared to their performance with IR and visible light. This significant performance of synthesized materials in UV light shows the cost-effective co-precipitation method in fabricating Indium-doped ZnO nanostructures for UV light sensing applications.http://www.sciencedirect.com/science/article/pii/S2666351123000451Indium-doped ZnOCo-precipitationInfraredVisibleUltravioletUV Light sensors |
| spellingShingle | Yogesh B. Waghadkar Govind Umarji Shankar S. Kekade Sunit Rane Ratna chauhan Muthupandian Ashokkumar Suresh W. Gosavi Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors Sensors International Indium-doped ZnO Co-precipitation Infrared Visible Ultraviolet UV Light sensors |
| title | Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors |
| title_full | Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors |
| title_fullStr | Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors |
| title_full_unstemmed | Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors |
| title_short | Synthesis and characterization of indium-doped ZnO nanoparticles by coprecipitation method for highly photo-responsive UV light sensors |
| title_sort | synthesis and characterization of indium doped zno nanoparticles by coprecipitation method for highly photo responsive uv light sensors |
| topic | Indium-doped ZnO Co-precipitation Infrared Visible Ultraviolet UV Light sensors |
| url | http://www.sciencedirect.com/science/article/pii/S2666351123000451 |
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