Kazi Kutubuddin,
- Professor, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
Abstract
As the demand for precision thermal monitoring in extreme environments – such as aerospace propulsion systems and micro-electromechanical systems (MEMS) – continues to escalate, the chemical stability of temperature sensing elements has become a critical focal point. This study investigates the correlation between the chemical composition of thin-film resistance temperature detectors (RTDs) and their operational longevity under thermal cycling. By employing X-ray Photoelectron Spectroscopy (XPS) and Energy-Dispersive X-ray Spectroscopy (EDS), we analyzed the atomic migration and oxidation patterns in Platinum–Rhodium (Pt–Rh) and Nickel–Chromium (Ni–Cr) alloy sensors. Our reviews reveal that trace dopants of Zirconium (Zr) significantly inhibit grain boundary diffusion, thereby reducing signal drift by 22% over 500 hours of high-temperature exposure. This review provides a framework for optimizing alloy stoichiometry to achieve higher sensitivity and long-term chemical robustness in next-generation thermal sensing technologies. The precision and reliability of temperature sensors are intrinsically linked to the chemical composition and stoichiometric integrity of their sensing elements. This study investigates the correlation between specific chemical doping, lattice structures, and thermal sensitivity in ceramic-based thermistors and thin-film resistance temperature detectors (RTDs). By employing scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX), we analyze the degradation of material properties under extreme thermal cycling. Our review reveals that the integration of transition metal oxides into standard sensing substrates significantly alters the Activation Energy (Ea) and improves long-term drift stability. Furthermore, we explore how trace elemental impurities – often overlooked in manufacturing – contribute to non-linear sensor response at cryogenic and ultra-high temperatures.
Keywords: Chemistry, chemical composition, temperature sensor, grapheme, thermal interference
[This article belongs to Journal of Nanoscience, NanoEngineering & Applications ]
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Journal of Nanoscience, NanoEngineering & Applications
| Volume | 16 | |
| Issue | 02 | |
| Received | 07/04/2026 | |
| Accepted | 03/06/2026 | |
| Published | 06/06/2026 | |
| Publication Time | 60 Days |