Ultrasensitive organic-inorganic nanotube thin films of halogenated perovskites as room temperature ammonia sensors

Sheikh, Arif D.; Vhanalakar, V.K.; Katware, Amarja; Pawar, Krishna K.; Kulkarni, Sulabha K.

doi:10.1016/j.jallcom.2021.162388

Cited by 20 publications

(7 citation statements)

References 59 publications

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“…The increased ammonia concentration is attributed to the enhanced diffusion and interaction rate of ammonia gas molecules with MABI perovskite grains. Similar linear variation in the responsivity with the concentration of gases has been observed in the literature [20,23,57].…”

Section: Gas Sensing Study Of Mabi Thin Filmssupporting

confidence: 88%

“…The sample was mounted on the stage holder, and the connections were taken out for the measurements. More details about the gas sensing unit are discussed in our previous report [23]. The computer-interfaced electrochemical Potentiostat (Model: K-Lyte 1.0 from Kanopy Techno Solutions Pvt.…”

Section: Device Characterization and Gas Sensing Measurementsmentioning

confidence: 99%

“…But it is required to investigate and explore those materials that have advantages like low-cost solution-processing, environmentally friendly nature, and are still sensing at room temperature [13]. Recently, several perovskite halide materials from the OIPH family of materials have shown promising sensitivity to various hazardous gases like NO 2 [14], ozone [15], acetone [16], ethanol trinitrotoluene [17], and NH 3 [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Eco-friendly MA₃Bi₂I₉ perovskite thin films based ammonia sensor

Bhosale¹,

Kazi²,

Pawar³

et al. 2022

Nanotechnology

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Organic-Inorganic Perovskite Halides (OIPH) have emerged as a wonder material with growing interest in sensors detecting various toxic gases. However, lead toxicity represents a potential obstacle and therefore finding lead free cost-effective compatible materials for gas sensing applications is essential. In this work, Methylammonium Bismuth Iodide i. e. (CH3NH3)3Bi2I9 (MABI) perovskite thin films-based ammonia (NH3) sensor was synthesized using antisolvent assisted one-step spin coating method. The MABI sensor shows a linear relationship between the responsivity and concentration of NH3 with excellent reversibility, high gas responsivity, and humidity stability. The MABI thin-film sensor exhibits a maximum gas response of 24%, short response/recovery time i. e. 0.14 s /8.15 s and good reversibility at 6 ppm of NH3. This work reveals that it is feasible to design high-performance gas sensors based on environmentally-friendly Bi-based perovskites.

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Section: Gas Sensing Study Of Mabi Thin Filmssupporting

confidence: 88%

Section: Device Characterization and Gas Sensing Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Eco-friendly MA₃Bi₂I₉ perovskite thin films based ammonia sensor

Bhosale¹,

Kazi²,

Pawar³

et al. 2022

Nanotechnology

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show abstract

“…Moreover, perovskites have various chemical structures, such as ABX 3 , AB 2 X 5 , and A 4 BX 6 , enabling them to be used with proper adjustment. Perovskites can also detect various types of gases because they can produce various species combinations depending on the type of ions in each A, B, and X sites. − Gas sensors have two main operating principles. They detect the change in electrical properties caused by the sensing gas and exhibit optical properties as listed in Table .…”

Section: Olfactory Sensingmentioning

confidence: 99%

Recent Progress of Halide Perovskites Applied to Five Senses Sensors

Seol

Hwang

Han

et al. 2023

ACS Appl. Electron. Mater.

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The demand for sensors in various fields, such as medicine and materials, has increased. Owing to the recent development of flexible material technology, materials that can be attached to the body are also being developed. Five senses sensors that can replace the five senses of humans are worth investigating. Halide perovskite has excellent optoelectrical properties such as tunable bandgap, long carrier diffusion length, and high photoluminescence quantum yield. However, it has characteristics that are vulnerable to various external factors such as water, light, and gas. As a result, it is considered a material suitable for application to sensors. This study examines the research trends of halide perovskites to develop vision, olfactory, tactile, taste, and auditory sensors. Although studies have been conducted on the application of perovskite oxides in areas such as gas sensors, little research has been conducted in areas such as magnetic sensors. The feasibility of implementing the five senses sensor is addressed by conducting extensive research on these sensors.

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“…Researchers have exploited varieties of fresh theories, techniques, and materials to accelerate the progress in this field. However, to the best of our knowledge, RT sensing concentrates more upon several target gases with intrinsically high activity, especially NO 2 , − NH 3 , − H 2 S, − and so forth.…”

Section: Introductionmentioning

confidence: 99%

Visible Light-Induced Room-Temperature Formaldehyde Gas Sensor Based on Porous Three-Dimensional ZnO Nanorod Clusters with Rich Oxygen Vacancies

et al. 2022

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Oxygen vacancy (V O ) is a kind of primary point defect that extensively exists in semiconductor metal oxides (SMOs). Owing to some of its inherent qualities, an artificial manipulation of V O content in one material has evolved into a hot research field, which is deemed to be capable of modulating band structures and surface characteristics of SMOs. Specific to the gas-sensing area, V O engineering of sensing materials has become an effective means in enhancing sensor response and inducing light-enhanced sensing. In this work, a high-efficiency microwave hydrothermal treatment was utilized to prepare a V O -rich ZnO sample without additional reagents. The X-ray photoelectron spectroscopy test revealed a significant increase in V O proportion, which was from 9.21% in commercial ZnO to 36.27% in synthesized V O -rich ZnO possessing three-dimensional and air-permeable microstructures. The subsequent UV–vis–NIR absorption and photoluminescence spectroscopy indicated an extension absorption in the visible region and band gap reduction of V O -rich ZnO. It turned out that the V O -rich ZnO-based sensor exhibited a considerable response of 63% toward 1 ppm HCHO at room temperature (RT, 25 °C) under visible light irradiation. Particularly, the response/recovery time was only 32/20 s for 1 ppm HCHO and further shortened to 10/5 s for 10 ppm HCHO, which was an excellent performance and comparable to most sensors working at high temperatures. The results in this work strongly suggested the availability of V O engineering and also provided a meaningful candidate for researchers to develop high-performance RT sensors detecting volatile organic compounds.

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Ultrasensitive organic-inorganic nanotube thin films of halogenated perovskites as room temperature ammonia sensors

Cited by 20 publications

References 59 publications

Eco-friendly MA₃Bi₂I₉ perovskite thin films based ammonia sensor

Eco-friendly MA₃Bi₂I₉ perovskite thin films based ammonia sensor

Recent Progress of Halide Perovskites Applied to Five Senses Sensors

Visible Light-Induced Room-Temperature Formaldehyde Gas Sensor Based on Porous Three-Dimensional ZnO Nanorod Clusters with Rich Oxygen Vacancies

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Ultrasensitive organic-inorganic nanotube thin films of halogenated perovskites as room temperature ammonia sensors

Cited by 20 publications

References 59 publications

Eco-friendly MA3Bi2I9 perovskite thin films based ammonia sensor

Eco-friendly MA3Bi2I9 perovskite thin films based ammonia sensor

Recent Progress of Halide Perovskites Applied to Five Senses Sensors

Visible Light-Induced Room-Temperature Formaldehyde Gas Sensor Based on Porous Three-Dimensional ZnO Nanorod Clusters with Rich Oxygen Vacancies

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Product

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Eco-friendly MA₃Bi₂I₉ perovskite thin films based ammonia sensor

Eco-friendly MA₃Bi₂I₉ perovskite thin films based ammonia sensor