UV-enhanced room-temperature ultrasensitive NO gas sensor with vertical channel nano-porous organic diodes

Madhaiyan, Govindasamy; Tung, Ting Wei; Zan, Hsiao Wen; Meng, Hsin Fei; Lu, Chia Jung; Ansari, Arshiya; Chuang, Wei Tsung; Lin, Hong‐Cheu

doi:10.1016/j.snb.2020.128392

Cited by 41 publications

(18 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The response time to 50 ppb, 100 ppb, and 1 ppm NO was 17, 22, and 12 s, respectively, and the corresponding recovery time was 6, 11, and 55 s, respectively. This shows a better response and recovery characteristics among the room-temperature NO sensors. − …”

Section: Resultsmentioning

confidence: 86%

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Zhang

et al. 2021

ACS Sens.

View full text Add to dashboard Cite

Portable and sensitive mixed-potential type solid-state electrolyte (MPSE) gas sensors can detect exhaled biomarkers in a noninvasive and inexpensive way, which is significant for convenient disease diagnosis and saving medical resources. However, high working temperature is still one of the main bottlenecks for hindering MPSE gas sensors’ applications in disease diagnosis. Here, we, for the first time, developed and fabricated new room-temperature MPSE gas sensors utilizing K2Fe4O7 electrolyte and Ni/Fe–MOF (Ni/Fe clusters are coordinated with 1,4-H2BDC) sensing electrodes (SEs) for the detection of ppb-level NO. Among different MOF SEs, the sensor attached with the Ni–MOF SE presents the highest NO sensitivities. This is attributed to a reducing oxygen reduction reaction activity and enhancing NO electrochemical catalytic reaction activity, verified by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests. In addition, the presented sensor also shows a low detection limit (20 ppb), fast response/recovery characteristic (17 s/6 s to 50 ppb NO), excellent selectivity, acceptable repeatability, and long-term stability of 34 days to NO at 25 °C and 60%RH. Simultaneously, the mechanism of humidity effect on the sensing performance was investigated by EIS and CV tests. Our work provides new insight into the development of room-temperature solid-state electrolyte gas sensors based on the mixed-potential mechanism and enlarges the potential application domain.

show abstract

Section: Resultsmentioning

confidence: 86%

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Zhang

et al. 2021

ACS Sens.

View full text Add to dashboard Cite

show abstract

“…Poly(3-hexylthiophene) (P3HT) solution (1.5 wt% in chlorobenzene) was spin coated (3500 rpm, 40 s) onto the PVP layer and annealed at 200 °C for 10 min as a surface modification layer to adsorb polystyrene (PS) nanospheres. PS nanospheres with a diameter of 200 nm were then coated for the following colloidal lithography process [ 18 , 19 , 20 , 21 ]. Aluminum 60 nm in thickness was thermally evaporated as the top electrode.…”

Section: Methodsmentioning

confidence: 99%

“…In order to investigate the gas sensing and electrical properties of the proposed ClAlPc VOD sensor, we utilized our standard sensor measurement system. More details of our sensing system have been reported in our prior works [ 19 , 21 ]. The target gas was introduced into a sensing chamber through a gas-tight syringe to interact with the sensor device.…”

Section: Methodsmentioning

confidence: 99%

“…OSC-based gas sensors are a benefit to e-nose systems owing to their inherent properties such as room temperature operation, fast response/recovery, low manufacturing cost, light weight, low power consumption, wide variety of material choice, and mechanical flexibility. In our prior works, we also successfully demonstrated numerous air-stable OSC gas sensors with room temperature operation for healthcare [ 14 , 15 , 16 ], environmental [ 17 , 18 , 19 ], and food quality monitoring [ 20 ]. In addition, we proposed an ultra-low power gas sensor based on a vertical organic diode (VOD) to detect ppb-level ammonia (NH 3 ) at room temperature [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Solution-Processed Chloroaluminum Phthalocyanine (ClAlPc) Ammonia Gas Sensor with Vertical Organic Porous Diodes

Madhaiyan

Sun

Zan

et al. 2021

Sensors

Self Cite

View full text Add to dashboard Cite

In this research work, the gas sensing properties of halogenated chloroaluminum phthalocyanine (ClAlPc) thin films were studied at room temperature. We fabricated an air-stable ClAlPc gas sensor based on a vertical organic diode (VOD) with a porous top electrode by the solution process method. The surface morphology of the solution-processed ClAlPc thin film was examined by field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The proposed ClAlPc-based VOD sensor can detect ammonia (NH3) gas at the ppb level (100~1000 ppb) at room temperature. Additionally, the ClAlPc sensor was highly selective towards NH3 gas compared to other interfering gases (NO2, ACE, NO, H2S, and CO). In addition, the device lifetime was tested by storing the device at ambient conditions. The effect of relative humidity (RH) on the ClAlPc NH3 gas sensor was also explored. The aim of this study is to extend these findings on halogenated phthalocyanine-based materials to practical electronic nose applications in the future.

show abstract

“…Jeong et al used defect functionalized single-walled carbon nanotube for the room-temperature detection of NO gas but again with a low response of 28.64% . Madhaiyan et al employed vertical channel nano-porous organic diodes for room-temperature NO detection . However, the sensing response could be improved only after UV radiation treatments.…”

Section: Introductionmentioning

confidence: 99%

Ferromagnetic Ni_1–xV_xO_1–y Nano-Clusters for NO Detection at Room Temperature: A Case of Magnetic Field-Induced Chemiresistive Sensing

Chakraborty

Panda

Mishra

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Surface modulation of functional nanostructures is an efficient way of improving gas sensing properties in chemiresistive materials. However, synthesis methods employed so far in achieving desired performances are cumbersome and energy intensive. Moreover, nano-engineering-induced magnetic properties of these materials which are expected to enhance sensing responses have not been utilized until now in improving their interaction with target gases. In particular for gasses with paramagnetic nature such as NO or NO2, the inherent magnetic property of the chemiresistor might assist in enabling superior sensing performance. In this work, vanadium-doped NiO nano-clusters with ferromagnetic behavior at room temperature have been synthesized by a simple and effective combination of soft chemical routes and employed in efficient and selective detection of paramagnetic NO gas. While NiO is typically anti-ferromagnetic, the nanoscale engineering of NiO- and V-doped NiO samples have been found to tune the inherent anti-ferromagnetic behavior into room-temperature ferromagnetism. Surface modification in terms of formation of nano-clusters led to an increased Brunauer–Emmett–Teller surface area of ∼120 m2/g. The sample Ni0.636V0.364O has been observed to exhibit a selective and high response of ∼98% to 1 ppm NO at room temperature with fast response (14 s) and recovery (95 s). The improved sensing response of this sample compared to other doped NiO variants could be explained in terms of lower remnant magnetic moment of the sample accompanied with higher excess negative charge at the surface. The sensing response of this sample was increased by 30% in the presence of an external magnetic field of 280 gauss, highlighting the importance of magnetic ordering in chemiresistive gas sensing between the magnetic sensor material and target analyte. This material stands as a potential gas sensor with excellent NO detection properties.

show abstract

UV-enhanced room-temperature ultrasensitive NO gas sensor with vertical channel nano-porous organic diodes

Cited by 41 publications

References 62 publications

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Solution-Processed Chloroaluminum Phthalocyanine (ClAlPc) Ammonia Gas Sensor with Vertical Organic Porous Diodes

Ferromagnetic Ni_1–xV_xO_1–y Nano-Clusters for NO Detection at Room Temperature: A Case of Magnetic Field-Induced Chemiresistive Sensing

Contact Info

Product

Resources

About

UV-enhanced room-temperature ultrasensitive NO gas sensor with vertical channel nano-porous organic diodes

Cited by 41 publications

References 62 publications

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K2Fe4O7 Electrolyte and Ni/Fe–MOF Sensing Electrodes

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K2Fe4O7 Electrolyte and Ni/Fe–MOF Sensing Electrodes

Solution-Processed Chloroaluminum Phthalocyanine (ClAlPc) Ammonia Gas Sensor with Vertical Organic Porous Diodes

Ferromagnetic Ni1–xVxO1–y Nano-Clusters for NO Detection at Room Temperature: A Case of Magnetic Field-Induced Chemiresistive Sensing

Contact Info

Product

Resources

About

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Ferromagnetic Ni_1–xV_xO_1–y Nano-Clusters for NO Detection at Room Temperature: A Case of Magnetic Field-Induced Chemiresistive Sensing