Thin-film sensors for detection of formaldehyde: A review

D Chen, YJ Yuan - IEEE Sensors Journal, 2015 - ieeexplore.ieee.org
This paper reviewed the films used in formaldehyde gas sensing recently. They can be
divided into three groups: 1) metal oxide semiconductor films; 2) polymer films; and 3) …

Work function changes in gas sensitive materials: Fundamentals and applications

A Oprea, N Bârsan, U Weimar - Sensors and Actuators B: Chemical, 2009 - Elsevier
The paper reviews the main issues concerning the work function changes in gas sensitive
materials, giving few representative examples. Starting from an historical perspective, the …

Poly-3-hexylthiophene based organic field-effect transistor: Detection of low concentration of ammonia

S Tiwari, AK Singh, L Joshi, P Chakrabarti… - Sensors and Actuators B …, 2012 - Elsevier
The soluble poly-3-hexylthiophene (P3HT) based organic field effect transistors (OFETs) are
fabricated and sensitivity of the device to ammonia vapour at room temperature is …

Organic semiconductors in potentiometric gas sensors

J Janata, M Josowicz - Journal of Solid State Electrochemistry, 2009 - Springer
Solid-state potentiometric sensors based on the chemical modulation of the work function of
organic semiconductors are discussed. The theory of the chemical work function modulation …

Ammonia gas sensor based on pentacene organic field-effect transistor

J Yu, X Yu, L Zhang, H Zeng - Sensors and Actuators B: Chemical, 2012 - Elsevier
Ammonia (NH3) sensors based on bottom contact organic field-effect transistors (OFETs)
were created using pentacene as an active layer and polymerthylmethacrylate (PMMA) as …

Highly sensitive ammonia sensor with organic vertical nanojunctions for noninvasive detection of hepatic injury

MZ Dai, YL Lin, HC Lin, HW Zan, KT Chang… - Analytical …, 2013 - ACS Publications
We successfully demonstrate the first solid-state sensor to have reliable responses to breath
ammonia of rat. For thioacetamide (TAA)-induced hepatopathy rats, we observe that the …

The response characteristics of a gas sensor based on poly-3-hexylithiophene thin-film transistors

JW Jeong, YD Lee, YM Kim, YW Park, JH Choi… - Sensors and Actuators B …, 2010 - Elsevier
This paper studies the response characteristics of a gas sensor for organic thin-film
transistors (OTFTs), made from spin-coated poly-3-hexylthiophene (P3HT) on a thermally …

Ammonia gas detection using field-effect transistor based on a solution-processable organic semiconductor

VR Rajeev, AK Paulose, KNN Unni - Vacuum, 2018 - Elsevier
We have developed a regioregular poly (3-hexylthiophene)(rr-P3HT) based organic field-
effect transistor (OFET) for the detection of low concentration of ammonia (NH 3) gas. The …

Solution-sheared ultrathin films for highly-sensitive ammonia detection using organic thin-film transistors

Q Meng, F Zhang, Y Zang, D Huang, Y Zou… - Journal of Materials …, 2014 - pubs.rsc.org
The solution-shearing technique is utilized to fabricate large-area, ultrathin and continuous
films of 1, 4-bis ((5′-hexyl-2, 2′-bithiophen-5-yl) ethynyl) benzene (HTEB) for high …

Pd doping Au (1 1 1) surfaces enhancing formaldehyde adsorption: A first-principle study

G Wu, WP Xu, HM Zuo, XL Wei, JX Cao - Computational Materials Science, 2023 - Elsevier
Toxic gas detection is essential and valuable in pollution monitoring. We used first-principles
computations to investigate the adsorption behavior and interaction mechanism of …