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Technological challenges in manufacturing of vacuum gauge thermionic cathode using thick-film technology

Jasińska Laura, Dzbik Krzysztof, Nowak Damian, Stojek Krzysztof, Chudzyńska Aleksandra, Politański Kamil, Malecha Karol

Materials Science Poland

2024

Vol. 42, No. 1

126--139

This paper focuses on the development of a technological challenges of manufacturing the planar ceramic vacuum sensor based on the principles of hot-cathode ionization in the Bayard-Alpert configuration. The goal is to simplify the technological process by utilizing planar platinum structures with gold electrical paths instead of 3-dimensional structures. Various methods were tested, including the use of carbon-based SVM (Sacrifice Volume Materials) materials, but without success. Wet-etching using potassium hydroxide on Al2O3 substrates showed promise results. The findings highlight the challenges and progress made in developing the thermo-emittercomponent of the vacuum sensor.

Imaging methods of detecting defects in photovoltaic solar cells and modules: a survey

Maziuk Maurycy, Jasińska Laura, Domaradzki Jarosław, Chodasewicz Paweł

Metrology and Measurement Systems

2023

Vol. 30, nr 3

381--401

In pursuit of increased efficiency and longer operating times of photovoltaic systems, one may encounter numerous difficulties in the form of defects that occur in both individual solar cells and whole modules. The causes of the occurrence range from structural defects to damage during assembly or, finally, wear and tear of the material due to operation. This article provides an overview of modern imaging methods used to detect various types of defects found in photovoltaic cells and panels. The first part reviews typical defects. The second part of the paper reviews imaging methods with examples of the authors’ own test results. The article concludes with recommendations and tables that provide a kind of comprehensive guide to the methods described, depending on the type of defects detected, the range of applicability, etc. The authors also shared their speculations on current trends and the possible path for further development and research in the field of solar cell defect analysis using imaging.