Batch fabrication of formaldehyde sensors based on LaFeO3 thin film with ppb-level detection limit

2021 ◽  
Vol 349 ◽  
pp. 130738
Author(s):  
Jinyong Hu ◽  
Xiqi Chen ◽  
Yong Zhang
Keyword(s):  
Thin Film ◽  
Detection Limit ◽  
Batch Fabrication

Detection Limit of Large Area Id Thin Film Position Sensitive Detectors Based in a-Si:H P.I.N. Diodes

1995 ◽  
Vol 377 ◽  
Author(s):  
R. Martins ◽  
G. Lavareda ◽  
F. Soares ◽  
E. Fortunato
Keyword(s):  
Thin Film ◽  
Experimental Data ◽  
Steady State ◽  
Detection Limit ◽  
Large Area ◽  
Position Sensitive ◽  
Position Sensitive Detectors

ABSTRACTThe aim of this work is to provide the basis for the interpretation of the steady state lateral photoeffect observed in p-i-n a-Si:H ID Thin Film Position Sensitive Detectors (ID TFPSD). The experimental data recorded in ID TFPSD devices with different performances are compared with the predicted curves and the obtained correlation's discussed.

Trace Analysis Using EDS: Applications to Thin-Film and Heterogeneous Samples

1990 ◽  
Vol 34 ◽  
pp. 57-70 ◽  
Author(s):  
B. J. Cross ◽  
J. E. Augenstine
Keyword(s):  
Thin Film ◽  
Detection Limit ◽  
Trace Analysis ◽  
Chemical Component ◽  
Minimum Detection Limit ◽  
False Detection ◽  
Heterogeneous Samples ◽  
Analysis Measurement ◽  
Detection And Quantification

Critical to “Trace Analysis” measurement are the concepts of detection and quantification. Detection means positively identifying a chemical component. The term Minimum Detection Limit (MDL), used here, follows that of Currie, and is the smallest concentration that yields a net count, above system background, which will be detected with a 95% probability (with only a 5% probability of false detection).

Drastic improvement in detection limits in energy dispersive X-ray fluorescence geometry utilizing micro-focused bremsstrahlung excitation in thin-film sample specimen

2021 ◽  
Vol 36 (4) ◽  
pp. 803-812
Author(s):  
Kaushik Sanyal ◽  
Buddhadev Kanrar ◽  
Sangita Dhara
Keyword(s):  
Thin Film ◽  
Detection Limit ◽  
Detection Limits ◽  
Energy Dispersive ◽  
Thin Film Sample ◽  
Film Sample ◽  
X Ray

Lowest detection limit achieved down to 0.4–4 ng mL−1 till date in a lab based XRF instrument.

DETECTION LIMIT FOR A VERY THIN BACKING FILM

1994 ◽  
Vol 04 (01) ◽  
pp. 1-7 ◽  
Author(s):  
KEIZO ISHII ◽  
HIKONOJO ORIHARA ◽  
YOSHIHIRO IWATA ◽  
KOTARO BESSHO
Keyword(s):  
Thin Film ◽  
Detection Limit ◽  
Spot Size ◽  
High Energy ◽  
High Energy Region ◽  
Beam Spot ◽  
Polyvinyl Formal ◽  
Beam Spot Size ◽  
Γ Rays ◽  
Mev Protons

Detection limit for thin backing films is formulated. A polyvinyl formal film of ~ 0.14µm was bombarded with 3 MeV protons and continuos backgrounds were measured with a Si(Li) detector. A large constant background of a high energy region (≥6 keV ) was interpreted as the Compton tail due to the 440 keV γ-rays from the excited state of 23Na which contaminated the surface of a carbon collimator placed just in front of a target. The detection limits of this thin film, under the condition of the beam spot size 6 mmϕ without collimator, are estimated for the elements of atomic number Z=10~55 and the minimum detection limit is calculated to be 4×10−12 g for Z=28~34.

Pushing the detection limit of thin film magnetoelectric heterostructures

2017 ◽  
Vol 32 (6) ◽  
pp. 1009-1019 ◽  
Author(s):  
Volker Röbisch ◽  
Sebastian Salzer ◽  
Necdet O. Urs ◽  
Jens Reermann ◽  
Erdem Yarar ◽  
...  
Keyword(s):  
Thin Film ◽  
Detection Limit ◽  
Image Position

Abstract

ROOM-TEMPERATURE NITRIC OXIDE GAS SENSING OF PEDOT THIN FILM USING SURFACE PLASMON RESONANCE

2009 ◽  
Vol 21 (06) ◽  
pp. 395-398 ◽  
Author(s):  
Tsing-Hau Wu ◽  
Hui-Hsin Lu ◽  
Wei-Yi Feng ◽  
Chii-Wann Lin ◽  
Chia-Yu Lin ◽  
...  
Keyword(s):  
Thin Film ◽  
Nitric Oxide ◽  
Surface Plasmon Resonance ◽  
Detection Limit ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Electrochemical Synthesis ◽  
Room Temperature ◽  
Gas Sensing ◽  
Optimal Thickness

A room-temperature nitric oxide ( NO ) gas sensor is prepared by using electrochemical synthesis of conducting polymer, poly-(3,4-ethylene dioxythiophene) (PEDOT) and characterized by surface plasmon resonance (SPR) method. Guided by SPR angle simulation, the optimal thickness of deposited PEDOT thin film is 25 nm and the resultant lowest detection limit of NO is 8 ppm. It exhibits 1.3 times higher responses to 25 ppm of NO gas than NO 2.

A batch fabrication-compatible multifunctional thermal sensor based on thin film thermocouple and thermopile elements

2018 ◽  
Vol 280 ◽  
pp. 188-196 ◽  
Author(s):  
Nishan Khatri ◽  
Tithi Desai ◽  
Amit Rai ◽  
Pratik KC ◽  
Arden L. Moore
Keyword(s):  
Thin Film ◽  
Thermal Sensor ◽  
Batch Fabrication ◽  
Thin Film Thermocouple
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