Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection
Palladium phthalocyanine (PdPc) nanowires (NWs) were developed to achieve the gas sensing of NO<sub>2</sub> in the sub-parts-per-million (ppm) range. Non-substituted metal phthalocyanine are well known for their p-type semiconducting behavior, which is responsible for its gas-sensing cap...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/24/6/1819 |
| _version_ | 1827305044105494528 |
|---|---|
| author | Crystal Otero Vélez Soraya Y. Flores Luis F. Fonseca Dalice M. Piñero Cruz |
| author_facet | Crystal Otero Vélez Soraya Y. Flores Luis F. Fonseca Dalice M. Piñero Cruz |
| author_sort | Crystal Otero Vélez |
| collection | DOAJ |
| description | Palladium phthalocyanine (PdPc) nanowires (NWs) were developed to achieve the gas sensing of NO<sub>2</sub> in the sub-parts-per-million (ppm) range. Non-substituted metal phthalocyanine are well known for their p-type semiconducting behavior, which is responsible for its gas-sensing capabilities. Nanofabrication of the PdPc NWs was performed by physical vapor deposition (PVD) on an interdigitated gold electrode (IDE). The coordination of palladium in the structure was confirmed with UV–Vis spectroscopy. Gas-sensing experiments for NO<sub>2</sub> detection were undertaken at different sensed gas concentrations from 4 ppm to 0.5 ppm at room temperature. In this work, the responses at different gas concentrations are reported. In addition, structural studies of the PdPc NWs with scanning electron microscopy (SEM) and electron-dispersive X-ray diffraction (EDS) are shown. |
| first_indexed | 2024-04-24T17:50:31Z |
| format | Article |
| id | doaj.art-644bfbd323cc4ec79fd3ae6e20ec4e54 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-24T17:50:31Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-644bfbd323cc4ec79fd3ae6e20ec4e542024-03-27T14:03:52ZengMDPI AGSensors1424-82202024-03-01246181910.3390/s24061819Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> DetectionCrystal Otero Vélez0Soraya Y. Flores1Luis F. Fonseca2Dalice M. Piñero Cruz3Faculty of Natural Sciences, University of Puerto Rico, Río Piedras Campus, San Juan 00931, Puerto RicoFaculty of Natural Sciences, University of Puerto Rico, Río Piedras Campus, San Juan 00931, Puerto RicoFaculty of Natural Sciences, University of Puerto Rico, Río Piedras Campus, San Juan 00931, Puerto RicoFaculty of Natural Sciences, University of Puerto Rico, Río Piedras Campus, San Juan 00931, Puerto RicoPalladium phthalocyanine (PdPc) nanowires (NWs) were developed to achieve the gas sensing of NO<sub>2</sub> in the sub-parts-per-million (ppm) range. Non-substituted metal phthalocyanine are well known for their p-type semiconducting behavior, which is responsible for its gas-sensing capabilities. Nanofabrication of the PdPc NWs was performed by physical vapor deposition (PVD) on an interdigitated gold electrode (IDE). The coordination of palladium in the structure was confirmed with UV–Vis spectroscopy. Gas-sensing experiments for NO<sub>2</sub> detection were undertaken at different sensed gas concentrations from 4 ppm to 0.5 ppm at room temperature. In this work, the responses at different gas concentrations are reported. In addition, structural studies of the PdPc NWs with scanning electron microscopy (SEM) and electron-dispersive X-ray diffraction (EDS) are shown.https://www.mdpi.com/1424-8220/24/6/1819palladium phthalocyaninenanowireschemiresistorsgas sensorsnitrogen dioxide |
| spellingShingle | Crystal Otero Vélez Soraya Y. Flores Luis F. Fonseca Dalice M. Piñero Cruz Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection Sensors palladium phthalocyanine nanowires chemiresistors gas sensors nitrogen dioxide |
| title | Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection |
| title_full | Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection |
| title_fullStr | Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection |
| title_full_unstemmed | Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection |
| title_short | Palladium Phthalocyanine Nanowire-Based Highly Sensitive Sensors for NO<sub>2(g)</sub> Detection |
| title_sort | palladium phthalocyanine nanowire based highly sensitive sensors for no sub 2 g sub detection |
| topic | palladium phthalocyanine nanowires chemiresistors gas sensors nitrogen dioxide |
| url | https://www.mdpi.com/1424-8220/24/6/1819 |
| work_keys_str_mv | AT crystaloterovelez palladiumphthalocyaninenanowirebasedhighlysensitivesensorsfornosub2gsubdetection AT sorayayflores palladiumphthalocyaninenanowirebasedhighlysensitivesensorsfornosub2gsubdetection AT luisffonseca palladiumphthalocyaninenanowirebasedhighlysensitivesensorsfornosub2gsubdetection AT dalicempinerocruz palladiumphthalocyaninenanowirebasedhighlysensitivesensorsfornosub2gsubdetection |