High-Performance Optoelectronic Gas Sensing Based on All-Inorganic Mixed-Halide Perovskite Nanocrystals with Halide Engineering.

Gas sensors are of great interest to portable and miniaturized sensing technologies with applications ranging from air quality monitoring to explosive detection and medical diagnostics, but the existing chemiresistive NO2 sensors still suffer from issues such as poor sensitivity, high operating temperature, and slow recovery. Herein, a high-performance NO2 sensors based on all-inorganic perovskite nanocrystals (PNCs) is reported, achieving room temperature operation with ultra-fast response and recovery time. After tailoring the halide composition, superior sensitivity of ≈67 at 8 ppm NO2 is obtained in CsPbI2 Br PNC sensors with a detection level down to 2 ppb, which outperforms other nanomaterial-based NO2 sensors. Furthermore, the remarkable optoelectronic properties of such PNCs enable dual-mode operation, i.e., chemiresistive and chemioptical sensing, presenting a new and versatile platform for advancing high-performance, point-of-care NO2 detection technologies.

[1]  H. Zeng,et al.  Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications , 2022, Nano-Micro Letters.

[2]  E. Llobet,et al.  Unraveling the Gas-Sensing Mechanisms of Lead-Free Perovskites Supported on Graphene , 2022, ACS sensors.

[3]  Weijian Chen,et al.  Valence-Regulated Metal Doping of Mixed-Halide Perovskites to Modulate Phase Segregation and Solar Cell Performance , 2022, ACS Energy Letters.

[4]  Myungkwan Song,et al.  Multimodal Gas Sensor Detecting Hydroxyl Groups with Phase Transition Based on Eco‐Friendly Lead‐Free Metal Halides , 2022, Advanced Functional Materials.

[5]  R. Kabir,et al.  Self-aligned CH3NH3PbBr3 perovskite nanowires via dielectrophoresis for gas sensing applications , 2022, Applied Materials Today.

[6]  Jing‐Kai Huang,et al.  Electrode Engineering in Halide Perovskite Electronics: Plenty of Room at the Interfaces , 2022, Advanced materials.

[7]  R. Godin,et al.  Interfacial charge transfer in carbon nitride heterojunctions monitored by optical methods , 2021, Journal of Photochemistry and Photobiology C: Photochemistry Reviews.

[8]  Shujuan Huang,et al.  Electroluminescent Solar Cells Based on CsPbI3 Perovskite Quantum Dots , 2021, Advanced Functional Materials.

[9]  Alishba T. John,et al.  Semiconductor Nanowire Arrays for High‐Performance Miniaturized Chemical Sensing , 2021, Advanced Functional Materials.

[10]  Long Luo,et al.  Atomically dispersed Pb ionic sites in PbCdSe quantum dot gels enhance room-temperature NO2 sensing , 2021, Nature Communications.

[11]  Jian‐mei Lu,et al.  Surfactant‐Free, One‐Step Synthesis of Lead‐Free Perovskite Hollow Nanospheres for Trace CO Detection , 2021, Advanced materials.

[12]  J. Chu,et al.  A “Turn-on” fluorescence perovskite sensor based on MAPbBr3/mesoporous TiO2 for NH3 and amine vapor detections , 2021 .

[13]  R. Lavi,et al.  Robust Room-Temperature NO2 Sensors from Exfoliated 2D Few-Layered CVD-Grown Bulk Tungsten Di-selenide (2H-WSe2) , 2021, ACS applied materials & interfaces.

[14]  Chen Zhao,et al.  Microwave Synthesis and High‐Mobility Charge Transport of Carbon‐Nanotube‐in‐Perovskite Single Crystals , 2020, Advanced Optical Materials.

[15]  P. Anandan,et al.  P-type Charge Transport and Selective Gas Sensing of All-Inorganic Perovskite Nanocrystals , 2020 .

[16]  J. Chu,et al.  Stable fluorescent NH3 sensor based on MAPbBr3 encapsulated by tetrabutylammonium cations , 2020 .

[17]  Robert Patterson,et al.  Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture , 2020, Nature communications.

[18]  Bing Zhang,et al.  Quantum Dynamics Simulations on the Adsorption Mechanism of Reducing and Oxidizing Gases on the CH3NH3PbI3 Surface , 2020, Advanced Theory and Simulations.

[19]  K. Catchpole,et al.  Superior Self‐Charged and ‐Powered Chemical Sensing with High Performance for NO2 Detection at Room Temperature , 2020, Advanced Optical Materials.

[20]  Xianghong Liu,et al.  MoS2 Van der Waals p–n Junctions Enabling Highly Selective Room‐Temperature NO2 Sensor , 2020, Advanced Functional Materials.

[21]  D. Gu,et al.  Visible-light activated room temperature NO2 sensing of SnS2 nanosheets based chemiresistive sensors , 2020 .

[22]  S. Jung,et al.  Multifunctional inorganic nanomaterial aerogel assembled into fSWNT hydrogel platform for ultraselective NO2 sensing. , 2020, ACS applied materials & interfaces.

[23]  Song Dang,et al.  Dynamic Passivation in Perovskite Quantum Dots for Specific Ammonia Detection at Room Temperature. , 2020, Small.

[24]  Yang Yang,et al.  Constructive molecular configurations for surface-defect passivation of perovskite photovoltaics , 2019, Science.

[25]  M. Toney,et al.  Size-Dependent Lattice Structure and Confinement Properties in CsPbI3 Perovskite Nanocrystals: Negative Surface Energy for Stabilization , 2019, ACS Energy Letters.

[26]  Longhua Guo,et al.  Sensitive Fluorescent Sensor for Hydrogen Sulfide in Rat Brain Microdialysis via CsPbBr3 Quantum Dots. , 2019, Analytical chemistry.

[27]  Sangwook Lee,et al.  Growth and Gas Sensing Properties of Methylammonium Tin Iodide Thin Film , 2019, Scripta Materialia.

[28]  Il-Doo Kim,et al.  All-carbon fiber-based chemical sensor: Improved reversible NO2 reaction kinetics , 2019, Sensors and Actuators B: Chemical.

[29]  Xinlong Wang,et al.  High-performance room-temperature NO2 sensors based on CH3NH3PbBr3 semiconducting films: Effect of surface capping by alkyl chain on sensor performance , 2019, Journal of Physics and Chemistry of Solids.

[30]  Dong Sung Choi,et al.  Nitrogen‐Dopant‐Induced Organic–Inorganic Hybrid Perovskite Crystal Growth on Carbon Nanotubes , 2019, Advanced Functional Materials.

[31]  Song Jin,et al.  Metal halide perovskite nanostructures for optoelectronic applications and the study of physical properties , 2019, Nature Reviews Materials.

[32]  Yang Yang,et al.  Interface and Defect Engineering for Metal Halide Perovskite Optoelectronic Devices , 2019, Advanced materials.

[33]  Yonghoon Choi,et al.  Surface Ligand Engineering for Efficient Perovskite Nanocrystal-Based Light-Emitting Diodes. , 2019, ACS applied materials & interfaces.

[34]  Zhifu Liu,et al.  Light enhanced room temperature resistive NO2 sensor based on a gold-loaded organic–inorganic hybrid perovskite incorporating tin dioxide , 2019, Microchimica Acta.

[35]  Yuchen Liu,et al.  Photostability and Photodegradation Processes in Colloidal CsPbI3 Perovskite Quantum Dots. , 2018, ACS applied materials & interfaces.

[36]  B. Ghosh,et al.  Fast response paper based visual color change gas sensor for efficient ammonia detection at room temperature , 2018, Scientific Reports.

[37]  L. Wan,et al.  Polar Solvent Induced Lattice Distortion of Cubic CsPbI3 Nanocubes and Hierarchical Self-Assembly into Orthorhombic Single-Crystalline Nanowires. , 2018, Journal of the American Chemical Society.

[38]  S. Valiyaveettil,et al.  Volatility and Chain Length Interplay of Primary Amines: Mechanistic Investigation on the Stability and Reversibility of Ammonia-Responsive Hybrid Perovskites. , 2018, ACS applied materials & interfaces.

[39]  E. Kymakis,et al.  Solution Processed CH3NH3PbI3-xClx Perovskite Based Self-Powered Ozone Sensing Element Operated at Room Temperature. , 2017, ACS sensors.

[40]  Matthew C. Beard,et al.  Enhanced mobility CsPbI3 quantum dot arrays for record-efficiency, high-voltage photovoltaic cells , 2017, Science Advances.

[41]  P. Samorí,et al.  Reversible, Fast, and Wide‐Range Oxygen Sensor Based on Nanostructured Organometal Halide Perovskite , 2017, Advanced materials.

[42]  R. Hamers,et al.  Stabilization of the Metastable Lead Iodide Perovskite Phase via Surface Functionalization. , 2017, Nano letters.

[43]  William W. Yu,et al.  Efficient and Stable White LEDs with Silica‐Coated Inorganic Perovskite Quantum Dots , 2016, Advanced materials.

[44]  Verena A. Hintermayr,et al.  Highly Luminescent Cesium Lead Halide Perovskite Nanocrystals with Tunable Composition and Thickness by Ultrasonication. , 2016, Angewandte Chemie.

[45]  Angshuman Nag,et al.  Band Edge Energies and Excitonic Transition Probabilities of Colloidal CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals , 2016 .

[46]  H. Zeng,et al.  CsPbX3 Quantum Dots for Lighting and Displays: Room‐Temperature Synthesis, Photoluminescence Superiorities, Underlying Origins and White Light‐Emitting Diodes , 2016 .

[47]  Lin Shi,et al.  Non-Radiative Carrier Recombination Enhanced by Two-Level Process: A First-Principles Study , 2016, Scientific Reports.

[48]  Liberato Manna,et al.  Tuning the Optical Properties of Cesium Lead Halide Perovskite Nanocrystals by Anion Exchange Reactions , 2015, Journal of the American Chemical Society.

[49]  Christopher H. Hendon,et al.  Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut , 2015, Nano letters.

[50]  Yang Yang,et al.  Solution-processed hybrid perovskite photodetectors with high detectivity , 2014, Nature Communications.

[51]  M. Green,et al.  The emergence of perovskite solar cells , 2014, Nature Photonics.

[52]  Dongxiang Zhou,et al.  Physically Flexible, Rapid‐Response Gas Sensor Based on Colloidal Quantum Dot Solids , 2014, Advanced materials.

[53]  Akshay M. Phulgirkar,et al.  Flexible, all-organic chemiresistor for detecting chemically aggressive vapors. , 2012, Journal of the American Chemical Society.

[54]  D. Neumark,et al.  Observation of the Ã(2B2) and C̃(2A2) states of NO2 by negative ion photoelectron spectroscopy of NO−2 , 1989 .

[55]  Peter R. Taylor,et al.  On the electron affinity of the oxygen atom , 1986 .

[56]  Qing Zhang,et al.  Perovskite quantum dot lasers , 2019 .