scholarly journals Highly mobile and reactive state of hydrogen in metal oxide semiconductors at room temperature

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Wan Ping Chen ◽  
Ke Feng He ◽  
Yu Wang ◽  
Helen Lai Wah Chan ◽  
Zijie Yan
Keyword(s):  
Metal Oxide ◽  
Room Temperature ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors

scholarly journals Graphene-enhanced metal oxide gas sensors at room temperature: a review

2018 ◽  
Vol 9 ◽  
pp. 2832-2844 ◽  
Author(s):  
Dongjin Sun ◽  
Yifan Luo ◽  
Marc Debliquy ◽  
Chao Zhang
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Room Temperature ◽  
Gas Sensing ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors ◽  
Sensing Material ◽  
Metal Oxide Gas Sensors ◽  
Low Sensitivity ◽  
Sensing Performance

Owing to the excellent sensitivity to gases, metal-oxide semiconductors (MOS) are widely used as materials for gas sensing. Usually, MOS gas sensors have some common shortages, such as relatively poor selectivity and high operating temperature. Graphene has drawn much attention as a gas sensing material in recent years because it can even work at room temperature, which reduces power consumption. However, the low sensitivity and long recovery time of the graphene-based sensors limit its further development. The combination of metal-oxide semiconductors and graphene may significantly improve the sensing performance, especially the selectivity and response/recovery rate at room temperature. In this review, we have summarized the latest progress of graphene/metal-oxide gas sensors for the detection of NO2, NH3, CO and some volatile organic compounds (VOCs) at room temperature. Meanwhile, the sensing performance and sensing mechanism of the sensors are discussed. The improved experimental schemes are raised and the critical research directions of graphene/metal-oxide sensors in the future are proposed.

scholarly journals Room-temperature ppb-level trimethylamine gas sensors functionalized with citric acid-doped polyvinyl acetate nanofibrous mats

2021 ◽  
Author(s):  
Aditya Rianjanu ◽  
Rizky Aflaha ◽  
Nur Istiqomah Khamidy ◽  
Mitra Djamal ◽  
Kuwat Triyana ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Citric Acid ◽  
Metal Oxide ◽  
Chemical Reaction ◽  
Gas Sensors ◽  
Room Temperature ◽  
Polyvinyl Acetate ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors ◽  
Gas Molecules

Conventional chemoresistive gas sensors based on inorganic metal oxide semiconductors work typically at an elevated temperature (200 – 500 °C) to facilitate the chemical reaction between the target gas molecules...

Green light-driven enhanced ammonia sensing at room temperature based on seed-mediated growth of gold-ferrosoferric oxide dumbbell-like heteronanostructures

Nanoscale ◽  
2020 ◽  
Vol 12 (36) ◽  
pp. 18815-18825
Author(s):  
Sujing Yu ◽  
Dongzhi Zhang ◽  
Yu Zhang ◽  
Wenjing Pan ◽  
Benjamin Edem Meteku ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Noble Metals ◽  
Room Temperature ◽  
Green Light ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors ◽  
Ammonia Sensing ◽  
Seed Mediated

Since there is excellent synergy between heterostructures and noble metals, the introduction of noble metals into metal oxide semiconductors has substantially improved the performance of gas sensors.

Permanent optical doping of amorphous metal oxide semiconductors by deep ultraviolet irradiation at room temperature

2010 ◽  
Vol 96 (22) ◽  
pp. 222101 ◽  
Author(s):  
Hyungtak Seo ◽  
Young-Je Cho ◽  
Jinwoo Kim ◽  
Santosh M.bobade ◽  
Kyoung-Youn Park ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Ultraviolet Irradiation ◽  
Room Temperature ◽  
Amorphous Metal ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors ◽  
Deep Ultraviolet ◽  
Amorphous Metal Oxide

Engineering metal oxide semiconductor nanostructures for enhanced charge transfer: fundamentals and emerging SERS applications

2022 ◽  
Author(s):  
Samriti ◽  
Vishal Rajput ◽  
Raju Kumar Gupta ◽  
Jai Prakash
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Semiconductor Nanostructures ◽  
Metal Oxide Semiconductor ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductor ◽  
Oxide Semiconductors ◽  
Transfer Processes

Fundamentals of doping engineering strategies of metal oxide semiconductors and various charge transfer processes for emerging SERS applications are discussed.

Sign in / Sign up

Export Citation Format

Share Document