SubjectsSubjects(version: 955)
Course, academic year 2019/2020
Chemical Sensors - M444009
Title: Chemické senzory
Guaranteed by: Department of Physics and Measurement (444)
Faculty: Faculty of Chemical Engineering
Actual: from 2019 to 2019
Semester: winter
Points: winter s.:6
E-Credits: winter s.:6
Examination process: winter s.:
Hours per week, examination: winter s.:2/3, C+Ex [HT]
Capacity: unknown / unknown (unknown)
Min. number of students: unlimited
State of the course: not taught
Language: Czech
Teaching methods: full-time
Teaching methods: full-time
Note: course can be enrolled in outside the study plan
enabled for web enrollment
Guarantor: Vrňata Martin prof. Dr. Ing.
Interchangeability : N444011
Examination dates   Schedule   
This subject contains the following additional online materials
Annotation -
The subject includes an overview of detection principles which are applied in modern sensors of chemical quantities. The main attention is focused on chemiresistors with semiconductive sensitive layers. There is given a detailed explanation of following topics: physico-chemical principles of detection, sensor architecture, selection of material for sensitive layers, measurement of sensor response in both dc- and ac- mode and mathematical methods of processing signal from both individual sensors and sensor arrays. Also overview of commercially produced chemical gas sensors and their application areas is included.
Last update: Vrňata Martin (26.04.2018)
Aim of the course -

The students will be able:

to classify chemical sensors according to the tranducing mechanism and have detailed knowledge of sensor operation principles and measurement modes

to apply chemical sensors in practice and to be acquainted with the contemporary trends in their research and development

Last update: Vrňata Martin (26.04.2018)
Literature -

R:Janata J., Principles of Chemical Sensors, Amazon, New York, 2009, 0387699309

R:Korotcenkov G., Chemical Sensors Comprehensive Sensor Technologies: Volume 4 Solid State Sensors, Momentum Press, New York,1606502336

A:Kittel CH., Introduction to Solid State Physics, Sixth Edition, John Wiley & Sons, Inc., New York, 1998, 0274673376

Last update: Vrňata Martin (26.04.2018)
Learning resources -

Last update: Vrňata Martin (26.04.2018)
Teaching methods -

Department of Physics and Measurements provides the education in the branch Chemical sensors.

The lectures are provided in English language. Basic principles of the sensors and their tranducing mechanisms are explained on the practical demonstrations.

Students obtain written materials with the text of lectures for their annotations and study.

The obligatory part of the subject is presence in laboratory works.

Last update: Vrňata Martin (09.05.2018)
Requirements to the exam -

Written test and oral discussion with satisfactory result.

Last update: Vrňata Martin (26.04.2018)
Syllabus -

1. Classification of sensors; transducing mechanisms; basic terminology of sensors

2. Overview of detection mechanisms in chemical gas sensors

3. An introduction to physics of semiconductors (intrinsic and extrinsic semiconductor, p-n junction, Schottky junction, surface states)

4. Semiconductor gas sensor - detection mechanisms in dependence on operation temperature

5. Architecture of semiconductor gas sensors

6. Basic materials of sensitive layers, their properties and selection

7. Catalysts and dopants in sensitive layers, mechanisms of their function; selective membranes

8. Nanostructured sensitive layers

9. Sensor parameters and possibilities of their improvement

10. Modes of sensor operation and measurement (dc- and ac- sensitivity, Nyquist diagrams, equivalent circuit parameters)

11. Interferent species, inhibitors and catalytic poisons

12. Sensor arrays, electronic nose, methods of data processing (Principal Component Analysis, cluster analysis)

13. Commercially produced semiconductor gas sensors and their application

14. Contemporary trends in semiconductor gas sensors

Last update: Vrňata Martin (26.04.2018)
Entry requirements -

Physics, Physical Chemistry, Fundamental Chemistry.

Last update: Vrňata Martin (26.04.2018)
Course completion requirements -
  • elaboration of written material dedicated to two assigned topics
  • discussion on these two topics with satisfactory result
  • elaboration of all laboratory protocols
Last update: Vrňata Martin (09.05.2018)
Teaching methods
Activity Credits Hours
Účast v laboratořích (na exkurzi nebo praxi) 0.5 14
Účast na přednáškách 1 28
Příprava na zkoušku a její absolvování 3 84
Účast na seminářích 1.5 42
6 / 6 168 / 168
Coursework assessment
Form Significance
Regular attendance 30
Examination test 30
Oral examination 40