Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques
This study investigated the surface properties of optical sensor layers prepared using sol-gel technology and their response to dissolved NH<sub>3</sub>. A glass substrate was used to fabricate the optical sensor layers. The sol-gel solution was applied to the glass substrate using three...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Chemosensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2227-9040/11/2/136 |
| _version_ | 1797621705859923968 |
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| author | Nena Dimitrušev Polonca Nedeljko A. F. P. Allwin Mabes Raj Aleksandra Lobnik |
| author_facet | Nena Dimitrušev Polonca Nedeljko A. F. P. Allwin Mabes Raj Aleksandra Lobnik |
| author_sort | Nena Dimitrušev |
| collection | DOAJ |
| description | This study investigated the surface properties of optical sensor layers prepared using sol-gel technology and their response to dissolved NH<sub>3</sub>. A glass substrate was used to fabricate the optical sensor layers. The sol-gel solution was applied to the glass substrate using three different techniques: spin coating (SC), inkjet printing (IP), and spray coating (SP). In this work, we have attempted to investigate the effects of the different techniques for producing the sensor layers and to determine their response in the presence of ammonia. The surface properties (surface free energy—SFE and surface chemical composition—XPS) and spectral properties (response to ammonia and real-time response) of the prepared optical sensor layers were characterised. The results show that the sensor layers prepared by different techniques have similar SFE and XPS values, but different responses to dissolved NH<sub>3</sub> solution and different responses in real-time measurements (exposure to fresh fish). Sensor layers prepared with a spray coating (SP) are the most responsive, the most sensitive, and have a higher response over time and the biggest colour change compared to SC and IP sensor layers. |
| first_indexed | 2024-03-11T08:59:42Z |
| format | Article |
| id | doaj.art-2a3965c937b0471797ad2eab9e1863a0 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-11T08:59:42Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-2a3965c937b0471797ad2eab9e1863a02023-11-16T19:46:47ZengMDPI AGChemosensors2227-90402023-02-0111213610.3390/chemosensors11020136Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing TechniquesNena Dimitrušev0Polonca Nedeljko1A. F. P. Allwin Mabes Raj2Aleksandra Lobnik3Messer Slovenija, Jugova ulica 20, 2342 Ruše, SloveniaInstitute for Environmental Protection and Sensors, Beloruska 7, 2000 Maribor, SloveniaInstitute for Environmental Protection and Sensors, Beloruska 7, 2000 Maribor, SloveniaInstitute for Environmental Protection and Sensors, Beloruska 7, 2000 Maribor, SloveniaThis study investigated the surface properties of optical sensor layers prepared using sol-gel technology and their response to dissolved NH<sub>3</sub>. A glass substrate was used to fabricate the optical sensor layers. The sol-gel solution was applied to the glass substrate using three different techniques: spin coating (SC), inkjet printing (IP), and spray coating (SP). In this work, we have attempted to investigate the effects of the different techniques for producing the sensor layers and to determine their response in the presence of ammonia. The surface properties (surface free energy—SFE and surface chemical composition—XPS) and spectral properties (response to ammonia and real-time response) of the prepared optical sensor layers were characterised. The results show that the sensor layers prepared by different techniques have similar SFE and XPS values, but different responses to dissolved NH<sub>3</sub> solution and different responses in real-time measurements (exposure to fresh fish). Sensor layers prepared with a spray coating (SP) are the most responsive, the most sensitive, and have a higher response over time and the biggest colour change compared to SC and IP sensor layers.https://www.mdpi.com/2227-9040/11/2/136optical sensor layers preparationspin coatingspray coatinginkjet printingSFEXPS |
| spellingShingle | Nena Dimitrušev Polonca Nedeljko A. F. P. Allwin Mabes Raj Aleksandra Lobnik Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques Chemosensors optical sensor layers preparation spin coating spray coating inkjet printing SFE XPS |
| title | Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques |
| title_full | Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques |
| title_fullStr | Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques |
| title_full_unstemmed | Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques |
| title_short | Comparison of Surface and Spectral Properties of Optical Sensor Layers Prepared by Spin/Spray Coating and Printing Techniques |
| title_sort | comparison of surface and spectral properties of optical sensor layers prepared by spin spray coating and printing techniques |
| topic | optical sensor layers preparation spin coating spray coating inkjet printing SFE XPS |
| url | https://www.mdpi.com/2227-9040/11/2/136 |
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