Electrical Conductivity and Sensitive Characteristics of Ag-Added BaTiO3-CuO Mixed Oxide for CO2 Gas Sensing

Highly Selective CO2 Gas Sensing Properties of CaO-BaTiO3 Heterostructures Effectuated through Discretely Created n-n Nanointerfaces

“…Further, based on the reversible dynamic transients, sensing characteristics exhibited by the 25CaO-B composite are excellent and are nearly comparable with cost-effective optical and highly selective electrochemical sensors matured commercially over the years . Furthermore, the proposed sensitive layer of the CaO-BaTiO 3 heterostructured composite shows improved sensor characteristics and compares well with the best chemisorptive-based metal oxide semiconductors sensors reported in the literature that have rarely been selective toward CO 2 gas. − …”

Efficient Heterostructures of Ag@CuO/BaTiO3 for Low-Temperature CO2 Gas Detection: Assessing the Role of Nanointerfaces during Sensing by Operando DRIFTS Technique

“…Among the various types of available gas-detection systems, metal oxide semiconductor-based chemoresistive devices have attracted substantial attention because of their distinctive features acquired upon p/n junction formation. , For metal oxide semiconductor-based sensors, selectivity and sensitivity are inherently low, and lately many efforts were devoted toward overcoming these hurdles. − These reports mainly include controllable synthesis of metal oxide semiconductors to achieve desired morphologies and their functionalization with other metal oxides and noble metals for synergistic and unique catalytic properties. To date, a number of CO 2 -sensitive p-CuO/n-metal oxide heterostructures synthesized using various thick-/thin-film techniques have been reported to provide sensor response at high operating temperatures ( T > 250 °C). − However, the downside to many of the reported cases is that they typically utilized complex synthesis routes, involving sintering at elevated temperatures, that are well known to result in the final material having a reduced surface area and oxygen vacancies, both of which are crucial for gas-sensing applications.…”

A PLZT Novel Sensor with Pt Implanted for Biomedical Application: Cardiac Micropulses Detection on Human Skin

“…In the continuous search for new ferroelectric materials, efforts have been made in research which focuses on lead-free systems as suitable materials for biomedical applications, as in the case of barium titanate (BaTiO 3 ) and its derivatives (Na,Bi)Ti-BaTiO 3 -(K,Bi)TiO 3 (BNBK) and (K,Na)NbO 3 (KNN) [7,8]. In general, these materials have a variety of applications due to good piezoelectric and dielectric properties in several applications such as optical, thermal gas, and moisture 2 Advances in Materials Science and Engineering sensors as capacitors and for piezoelectric transducers [9][10][11]. Since the mechanical and microstructural behavior of a PLZT sensor with platinum wire implanted (PLZT-Pt) is a key factor in biosensor applications, its viability for monitoring the cardiac pulse on skin is studied in this research.…”