scholarly journals A Highly Sensitive Humidity Sensor Based on Ultrahigh-Frequency Microelectromechanical Resonator Coated with Nano-Assembled Polyelectrolyte Thin Films

Micromachines ◽  
2017 ◽  
Vol 8 (4) ◽  
pp. 116 ◽  
Author(s):  
Wenpeng Liu ◽  
Hemi Qu ◽  
Jizhou Hu ◽  
Wei Pang ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Humidity Sensor ◽  
Ultrahigh Frequency ◽  
Polyelectrolyte Thin Films ◽  
Highly Sensitive

Self-Assembled Polymer Thin Films Towards Nanoarchitectonics for Respiration Monitoring

2020 ◽  
Vol 20 (5) ◽  
pp. 2893-2901
Author(s):  
Premkumar Jayaraman ◽  
Chinnasamy Sengottaiyan ◽  
Karthik Krishnan
Keyword(s):  
Thin Films ◽  
Morphological Analysis ◽  
Humidity Sensor ◽  
Polymer Thin Films ◽  
Respiration Monitoring ◽  
Response Recovery ◽  
Human Respiration ◽  
Highly Sensitive ◽  
Transport Path ◽  
Self Assembled

Manipulation of ionic transport in the self-assembled polymer thin films using nanoarchitectonics approach can open the door for the development of novel electronic devices with ultrafast operation and low-power consumption. Here, we demonstrate a highly sensitive and ultrafast responsive flexible humidity sensor for human respiration monitoring. Humidity sensing behavior of the polymerbased planar devices, in which a polyethylene oxide-phosphotungstic acid (PEO-PWA) thin film is placed between an opposing inert electrodes, have been investigated by optimizing the device configuration and PWA salt concentration in the PEO matrix. The ultrafast response (~50 ms) and recovery (~52 ms) of the humidity sensor enabled us to study the real-time human respiration monitoring. Using morphological analysis, it is proposed that the ultrafast response-recovery time for this sensor is ascribed to their self-assembled lamellar-like structures of the PEO-PWA matrix polymer, which provides long-range continuous proton transport path in the polymer interface.

Fabrication and Characterization of an Ultrasensitive Humidity Sensor Based on Chalcogenide Glassy Alloy Thin Films

2021 ◽  
Author(s):  
Surabhi Mishra ◽  
◽  
Priyanka Chaudhary ◽  
B. C. Yadav ◽  
Ahmad Umar ◽  
...  
Keyword(s):  
Thin Films ◽  
Humidity Sensor ◽  
Glassy Alloy ◽  
Fabrication And Characterization

Highly sensitive BEHP-co-MEH:PPV + Poly(acrylic acid) partial sodium salt based relative humidity sensor

2017 ◽  
Vol 246 ◽  
pp. 809-818 ◽  
Author(s):  
Memoon Sajid ◽  
Hyun Bum Kim ◽  
Young Jin Yang ◽  
Jeongdai Jo ◽  
Kyung Hyun Choi
Keyword(s):  
Relative Humidity ◽  
Acrylic Acid ◽  
Sodium Salt ◽  
Humidity Sensor ◽  
Highly Sensitive ◽  
Relative Humidity Sensor ◽  
Poly Acrylic Acid

A highly sensitive room temperature humidity sensor based on 2D-WS2 nanosheets

FlatChem ◽  
2018 ◽  
Vol 9 ◽  
pp. 21-26 ◽  
Author(s):  
S.G. Leonardi ◽  
W. Wlodarski ◽  
Y. Li ◽  
N. Donato ◽  
Z. Sofer ◽  
...  
Keyword(s):  
Room Temperature ◽  
Humidity Sensor ◽  
Highly Sensitive ◽  
Ws2 Nanosheets

A highly sensitive humidity sensor based on an aggregation-induced emission luminogen-appended hygroscopic polymer microresonator

2021 ◽  
Author(s):  
Airong Qiagedeer ◽  
Hiroshi Yamagishi ◽  
Minami Sakamoto ◽  
Hanako Hasebe ◽  
Fumitaka Ishiwari ◽  
...  
Keyword(s):  
Humidity Sensor ◽  
High Sensitivity ◽  
Aggregation Induced Emission ◽  
Highly Sensitive ◽  
Self Assembled

A self-assembled microsphere resonator, comprising a hygroscopic polymer with aggregation-induced emission luminogen pendants, can sense humidity with high sensitivity and repeatability.

Sign in / Sign up

Export Citation Format

Share Document