High-performance NO2-gas sensing of ultrasmall ZnFe2O4 nanoparticles based on surface charge transfer

2019 ◽  
Vol 7 (10) ◽  
pp. 5539-5551 ◽  
Author(s):  
Ke Li ◽  
Yuanyuan Luo ◽  
Bo Liu ◽  
Lei Gao ◽  
Guotao Duan
Keyword(s):  
Charge Transfer ◽  
Surface Charge ◽  
High Performance ◽  
Gas Sensing ◽  
Ex Situ ◽  
Sensing Mechanism ◽  
Znfe2o4 Nanoparticles

Ex situ photoluminescence characterization reveals the gas-sensing mechanism of ZFO NPs to NO2 based on charge transfer.

Surface Charge Transfer Doping of Low-Dimensional Nanostructures toward High-Performance Nanodevices

2016 ◽  
Vol 28 (47) ◽  
pp. 10409-10442 ◽  
Author(s):  
Xiujuan Zhang ◽  
Zhibin Shao ◽  
Xiaohong Zhang ◽  
Yuanyuan He ◽  
Jiansheng Jie
Keyword(s):  
Charge Transfer ◽  
Surface Charge ◽  
High Performance ◽  
Low Dimensional

Surface charge transfer doping induced inversion layer for high-performance graphene/silicon heterojunction solar cells

2017 ◽  
Vol 5 (1) ◽  
pp. 285-291 ◽  
Author(s):  
Ke Ding ◽  
Xiujuan Zhang ◽  
Feifei Xia ◽  
Rongbin Wang ◽  
Yawei Kuang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Surface Charge ◽  
High Performance ◽  
Inversion Layer ◽  
Heterojunction Solar Cells ◽  
Device Efficiency ◽  
P Type ◽  
Silicon Heterojunction Solar Cells

Surface charge transfer doping (SCTD) induced p-type inversion layer was implemented in the graphene/silicon heterojunction solar cells, leading to significant improvement of device efficiency.

scholarly journals Surface Charge Transfer Doping: Surface Charge Transfer Doping of Low-Dimensional Nanostructures toward High-Performance Nanodevices (Adv. Mater. 47/2016)

2016 ◽  
Vol 28 (47) ◽  
pp. 10575-10575 ◽  
Author(s):  
Xiujuan Zhang ◽  
Zhibin Shao ◽  
Xiaohong Zhang ◽  
Yuanyuan He ◽  
Jiansheng Jie
Keyword(s):  
Charge Transfer ◽  
Surface Charge ◽  
High Performance ◽  
Low Dimensional

Efficient and reliable surface charge transfer doping of black phosphorus via atomic layer deposited MgO toward high performance complementary circuits

Nanoscale ◽  
2018 ◽  
Vol 10 (36) ◽  
pp. 17007-17014 ◽  
Author(s):  
Wugang Liao ◽  
Lin Wang ◽  
Li Chen ◽  
Wei Wei ◽  
Zhe Zeng ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Surface Charge ◽  
High Performance ◽  
Atomic Layer ◽  
Black Phosphorus ◽  
N Doping

Efficient n-doping for BP transistors is realized via atomic layer deposited MgO for the implementation of high-performance complementary logic inverters.

scholarly journals Highly Sensitive Gas Sensing Material for Environmentally Toxic Gases Based on Janus NbSeTe Monolayer

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2554
Author(s):  
Deobrat Singh ◽  
Rajeev Ahuja
Keyword(s):  
Charge Transfer ◽  
Transport Properties ◽  
High Performance ◽  
Gas Sensing ◽  
Visible Region ◽  
High Sensitivity ◽  
Binding Strength ◽  
Toxic Gases ◽  
Gas Molecules ◽  
So2 Gas

Recently, a new family of the Janus NbSeTe monolayer has exciting development prospects for two-dimensional (2D) asymmetric layered materials that demonstrate outstanding properties for high-performance nanoelectronics and optoelectronics applications. Motivated by the fascinating properties of the Janus monolayer, we have studied the gas sensing properties of the Janus NbSeTe monolayer for CO, CO2, NO, NO2, H2S, and SO2 gas molecules using first-principles calculations that will have eminent application in the field of personal security, protection of the environment, and various other industries. We have calculated the adsorption energies and sensing height from the Janus NbSeTe monolayer surface to the gas molecules to detect the binding strength for these considered toxic gases. In addition, considerable charge transfer between Janus monolayer and gas molecules were calculated to confirm the detection of toxic gases. Due to the presence of asymmetric structures of the Janus NbSeTe monolayer, the projected density of states, charge transfer, binding strength, and transport properties displayed distinct behavior when these toxic gases absorbed at Se- and Te-sites of the Janus monolayer. Based on the ultra-low recovery time in the order of μs for NO and NO2 and ps for CO, CO2, H2S, and SO2 gas molecules in the visible region at room temperature suggest that the Janus monolayer as a better candidate for reusable sensors for gas sensing materials. From the transport properties, it can be observed that there is a significant variation of I−V characteristics and sensitivity of the Janus NbSeTe monolayer before and after adsorbing gas molecules demonstrates the feasibility of NbSeTe material that makes it an ideal material for a high-sensitivity gas sensor.

Surface charge transfer properties of high-performance Ag-decorated ZnO photocatalysts

2011 ◽  
Vol 44 (31) ◽  
pp. 315502 ◽  
Author(s):  
Yongchun Lu ◽  
Yanhong Lin ◽  
Dejun Wang ◽  
Lingling Wang ◽  
Tengfeng Xie ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Surface Charge ◽  
High Performance ◽  
Transfer Properties

P-type Co3O4 nanoarrays decorated on the surface of n-type flower-like WO3 nanosheets for high-performance gas sensing

2019 ◽  
Vol 288 ◽  
pp. 104-112 ◽  
Author(s):  
Yanghai Gui ◽  
Lele Yang ◽  
Kuan Tian ◽  
Hongzhong Zhang ◽  
Shaoming Fang
Keyword(s):  
High Performance ◽  
Gas Sensing ◽  
P Type ◽  
Co3o4 Nanoarrays

scholarly journals Optimization of a Low-Power Chemoresistive Gas Sensor: Predictive Thermal Modelling and Mechanical Failure Analysis

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 783 ◽  
Author(s):  
Andrea Gaiardo ◽  
David Novel ◽  
Elia Scattolo ◽  
Michele Crivellari ◽  
Antonino Picciotto ◽  
...  
Keyword(s):  
Low Power ◽  
Failure Analysis ◽  
Gas Sensors ◽  
High Performance ◽  
Gas Sensing ◽  
Mechanical Failure ◽  
Sensing Applications ◽  
Theoretical Approaches ◽  
Sensing Material ◽  
Silicon Bulk

The substrate plays a key role in chemoresistive gas sensors. It acts as mechanical support for the sensing material, hosts the heating element and, also, aids the sensing material in signal transduction. In recent years, a significant improvement in the substrate production process has been achieved, thanks to the advances in micro- and nanofabrication for micro-electro-mechanical system (MEMS) technologies. In addition, the use of innovative materials and smaller low-power consumption silicon microheaters led to the development of high-performance gas sensors. Various heater layouts were investigated to optimize the temperature distribution on the membrane, and a suspended membrane configuration was exploited to avoid heat loss by conduction through the silicon bulk. However, there is a lack of comprehensive studies focused on predictive models for the optimization of the thermal and mechanical properties of a microheater. In this work, three microheater layouts in three membrane sizes were developed using the microfabrication process. The performance of these devices was evaluated to predict their thermal and mechanical behaviors by using both experimental and theoretical approaches. Finally, a statistical method was employed to cross-correlate the thermal predictive model and the mechanical failure analysis, aiming at microheater design optimization for gas-sensing applications.

scholarly journals Explosive Molecule Sensing at Lattice Defect Sites in Metallic Carbon Nanotubes

2021 ◽  
Author(s):  
Manasi Doshi ◽  
Eric Paul Fahrenthold
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Experimental Research ◽  
Gas Sensing ◽  
Lattice Defect ◽  
Sensing Mechanism ◽  
Defect Sites ◽  
Chemiresistive Sensing ◽  
Hazardous Gas

Explosives and hazardous gas sensing using carbon nanotube (CNT) based sensors has been a focus of considerable experimental research. The simplest sensors have employed a chemiresistive sensing mechanism, and rely...

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