Room temperature and highly sensitive acetone sensor based on lead sulfide nanosheets

Jahromi, Hamed Dehdashti; Kazemi, Mohammad; Sheikhi, Mohammad Hossein

doi:10.1016/j.mseb.2021.115082

Cited by 22 publications

(7 citation statements)

References 42 publications

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“…However, most of these systems require a high operating temperature between 100 and 300 °C, certainly achieved by integrating with external heaters such as Ni–Cr/ceramic underneath sensor substrates. − Achieving such a high operating temperature is impractical on paper and other flexible substrates, limiting acetone sensor development on wearable and flexible substrates. Interestingly, there were attempts to realize low-temperature acetone sensing using active layers coated on rigid substrates like quartz crystals, glass, ceramic, indium tin oxide (ITO), and PCB and approaches such as colorimetric identification on paper. − The former uses rigid substrates that are unrealistic to explore in wearable and flexible applications, while the latter suffers from quantitative detection of analytes. Indeed, recovery and response times of these sensors varied between 18–140 and 60–200 s, respectively. , This prolonged recovery and response time compared to conventional high-temperature acetone sensors was due to the low or no working temperature involved during the sensor operation.…”

Section: Introductionmentioning

confidence: 99%

“…Interestingly, there were attempts to realize low-temperature acetone sensing using active layers coated on rigid substrates like quartz crystals, glass, ceramic, indium tin oxide (ITO), and PCB and approaches such as colorimetric identification on paper. − The former uses rigid substrates that are unrealistic to explore in wearable and flexible applications, while the latter suffers from quantitative detection of analytes. Indeed, recovery and response times of these sensors varied between 18–140 and 60–200 s, respectively. , This prolonged recovery and response time compared to conventional high-temperature acetone sensors was due to the low or no working temperature involved during the sensor operation. Hence, the development of flexible, room-temperature-operable paper-based acetone sensors with ultrafast response and recovery time is profound for wearable sensor development.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, recovery and response times of these sensors varied between 18−140 and 60−200 s, respectively. 60,61 This prolonged recovery and response time compared to conventional high-temperature acetone sensors was due to the low or no working temperature involved during the sensor operation. Hence, the development of flexible, room-temperature-operable paper-based acetone sensors with ultrafast response and recovery time is profound for wearable sensor development.…”

Section: ■ Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

Davis

Narayanan

Ajeev

et al. 2023

ACS Appl. Mater. Interfaces

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Paper-based lightweight, degradable, low-cost, and eco-friendly substrates are extensively used in wearable biosensor applications, albeit to a lesser extent in sensing acetone and other gas-phase analytes. Generally, rigid substrates with heaters have been employed to develop acetone sensors due to the high operating/recovery temperature (typically above 200 °C), limiting the use of papers as substrates in such sensing applications. In this work, we proposed fabricating the paper-based, room-temperature-operatable acetone sensor using ZnO-polyaniline-based acetone-sensing inks by a facile fabrication method. The fabricated paper-based electrodes showed good electrical conductivity (80 S/m) and mechanical stability (∼1000 bending cycles). The acetone sensors showed a sensitivity of 0.02/100 ppm and 0.6/10 μL with an ultrafast response (4 s) and recovery time (15 s) at room temperature. The sensors delivered a broad sensitivity over a physiological range of 260 to >1000 ppm with R 2 > 0.98 under atmospheric conditions. Further, the role of the surface, interfacial, microstructure, electrical, and electromechanical properties of the paper-based sensor devices has been correlated with the sensitivity and room-temperature recovery observed in our system. These versatile, green, flexible electronic devices would be ideal for low-cost, highly regenerative, room-/low-temperature-operable wearable sensor applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

Davis

Narayanan

Ajeev

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…It was also observed that the sensor shows quick response (56 s) and recovery time (69 s) for 20 ppm concentration at 100 °C under UV light. Jahromi et al studied the lead sulfide nanosheet-based acetone sensor [ 36 ]. The sensor showed the highest response of 24.16% for 1 ppm concentration at an operating temperature of 25 °C.…”

Section: Introductionmentioning

confidence: 99%

ZnS Quantum Dot Based Acetone Sensor for Monitoring Health-Hazardous Gases in Indoor/Outdoor Environment

Mishra

Choi

et al. 2021

Micromachines

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This study reports the ZnS quantum dots (QDs) synthesis by a hot-injection method for acetone gas sensing applications. The prepared ZnS QDs were characterized by X-ray diffraction (XRD) and transmission electron microscopy analysis. The XRD result confirms the successful formation of the wurtzite phase of ZnS, with a size of ~5 nm. Transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and fast Fourier transform (FFT) images reveal the synthesis of agglomerated ZnS QDs with different sizes, with lattice spacing (0.31 nm) corresponding to (111) lattice plane. The ZnS QDs sensor reveals a high sensitivity (92.4%) and fast response and recovery time (5.5 s and 6.7 s, respectively) for 100 ppm acetone at 175 °C. In addition, the ZnS QDs sensor elucidates high acetone selectivity of 91.1% as compared with other intrusive gases such as ammonia (16.0%), toluene (21.1%), ethanol (26.3%), butanol (11.2%), formaldehyde (9.6%), isopropanol (22.3%), and benzene (18.7%) for 100 ppm acetone concentration at 175 °C. Furthermore, it depicts outstanding stability (89.1%) during thirty days, with five day intervals, for 100 ppm at an operating temperature of 175 °C. In addition, the ZnS QDs acetone sensor elucidates a theoretical detection limit of ~1.2 ppm at 175 °C. Therefore, ZnS QDs can be a promising and quick traceable sensor nanomaterial for acetone sensing applications.

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“…Song et al synthesized star-shaped PbS nanomaterials and further assessed their gas sensing properties such as sensitivity and response-recovery in ethanol detection [14]. Jahromi et al proposed and fabricated a highly sensitive solid-state acetone sensor based on lead sulfide nanosheets [15]. Furthermore, it can also be utilized in light-emitting diode [16,17], Optical waveguides [18], optical fiber amplifiers [19], photon detectors [20,21], IR detectors [22], display devices [23], and solar cells [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of well-ordered PbS nanowires in aluminum oxide template by sulfurization and vacuum injection molding processes

et al. 2021

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Lead (Pb) nanowire arrays were fabricated with anodic aluminum oxide (AAO) templates of 30, 100 and 300 nm in pore diameters. Through vacuum injection molding process, Pb/AAO composite was obtained, and lead sulfide (PbS) could further be synthesized after exposing to sulfur gas. AAO templates with different pore sizes were fabricated by using pure aluminum in a two-step anodization. Three types of solutions, which are 10 vol% sulfuric acid, 3 wt% oxalic acid and 1 vol% phosphoric acid, were adopted to achieve AAO of various pore sizes. Different sulfurization temperatures and time spans were applied for studying on the formation mechanism of PbS. Finally, the morphology, composition, structure and elements distribution of the as-prepared Pb and PbS nanowires were confirmed through the use of scanning electron microscopy, energy dispersive x-ray spectroscopy, element-mapping, x-ray diffraction and transmission electron microscopy analysis. The results indicated that Pb nanowires were successfully obtained after applying vacuum injection molding process with 50 kgf cm−2 hydraulic pressure, and PbS nano arrays can be formed by sulfurization at 500 °C for 5 h. Furthermore, an optical property, ultraviolet–visible (UV–Vis) absorption, was also measured. The measurement of the PbS nanowires showed that a significant quantum confinement effect made the energy gap produce a blue shift from 0.41 eV to 1.65 eV or 1.72 eV.

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Room temperature and highly sensitive acetone sensor based on lead sulfide nanosheets

Cited by 22 publications

References 42 publications

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

Flexible Paper-Based Room-Temperature Acetone Sensors with Ultrafast Regeneration

ZnS Quantum Dot Based Acetone Sensor for Monitoring Health-Hazardous Gases in Indoor/Outdoor Environment

Fabrication and characterization of well-ordered PbS nanowires in aluminum oxide template by sulfurization and vacuum injection molding processes

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