Gas Sensors Based on Semiconductor Materials
A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Nanosensors".
Deadline for manuscript submissions: closed (20 January 2022) | Viewed by 21999
Special Issue Editor
Interests: nanomaterials; chemical sensors; semiconductors; surface; hybrid materials
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
In memory of Professor Alexander Gaskov.
Dear Colleagues,
The area of gas sensors application is rapidly expanding. This leads both to the expansion of the range of target gases and a greater variety of their detection conditions: temperature, humidity, interfering compounds. Semiconductor materials are of exceptional interest for the development of gas sensors that can be integrated into miniature devices and convert information into electrical signals with high sensitivity and speed.
Wide-gap binary n-type metal oxides SnO2, ZnO, WO3, and In2O3 are most widely used to create semiconductor gas sensors. However, despite their high sensitivity and easy manufacturing, these materials have limitations in selectivity, especially when analyzing gas mixtures in real conditions with variable air humidity. Overcoming these limitations is the main focus of research in the field of sensor materials science. A significant amount of work falls on semiconductor structures consisting of different compounds. These studies consider nanocomposites, organic–inorganic hybrid materials, and n–n and n–p heterostructures. At present, the full potential of the new material is difficult to imagine, as information is still being accumulated. Fundamental and applied research that provides information on the mechanisms of the sensor response formation, as well as an understanding of the relationships between the sensor properties of materials, their physicochemical characteristics, and synthesis conditions, is necessary for the targeted development of contemporary materials for gas sensors. A Special Issue of MDPI Sensors can become a scientific platform for discussing the advantages and possibilities of gas sensors based on complex semiconductor materials.
Prof. Dr. Marina N. Rumyantseva
Guest Editor
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Keywords
- Binary and complex (spinels, perovskites, etc.) Metal oxide semiconductors
- Metal-oxide-based semiconductor nanocomposites
- N–n and n–p semiconductor heterostructures
- Organic–inorganic hybrid semiconductor hybrid materials
- Solid–gas interaction
- Processes and fabrication technologies for semiconductor gas sensors
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