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March 21, 2026Scientific Reports0 citationsOpen Access

Thermal, vibrational, and electrical properties of high-purity Ag₂Te for advanced applications

MFMohamed M. FangaryATAhmed G. TahaMRM. M. Reda

Key Points

  • To investigate the thermal, vibrational, and electrical properties of high-purity Ag2Te for advanced applications.
  • Grew high-purity Ag2Te single crystals using an automated programmable furnace.
  • Conducted X-ray diffraction (XRD) to determine crystal structure and lattice parameters.
  • Performed thermogravimetric analysis (TGA) to study thermal behavior and phase transitions.
  • Utilized Raman spectroscopy to analyze vibrational properties and bonding characteristics.
  • Examined ac conductivity over a temperature range of 163 K to 520 K.
  • Confirmed monoclinic crystal structure of Ag2Te with refined lattice parameters a = 0.8165 nm and β = 112.81°.
  • Identified significant insights into the thermal decomposition process of Ag2Te through TGA analysis.
  • Revealed frequency-dependent conductivity and dominant conduction mechanisms via ac conductivity studies.

Abstract

High-purity Ag2Te single crystals grown via automated programmable furnace (1263 K, controlled cooling) yield superior phase purity and thermoelectric performance. X-ray diffraction (XRD) analysis of the powdered Ag2Te sample confirmed a monoclinic crystal structure at ambient temperature. The refined lattice parameters were determined to be a = 0.8165 nm and β = 112.81°. Thermo gravimetric analysis (TGA) has proven to be a valuable tool for studying the thermal behavior of Ag2Te. It has provided insights into the decomposition process and phase transitions of this material. However, further research is needed to address remaining gaps in knowledge and explore the potential applications of thermal analysis for optimizing the performance of Ag2Te in various applications. Raman spectroscopy analysis used as a tool for studying the vibrational properties of Ag2Te. It has provided insights into the structure, phase transition and bonding characteristics of this material. Ac conductivity studies have provided valuable insights into the electrical transport properties of Ag2Te. They have revealed the frequency dependent nature of the conductivity, identified the dominant conduction mechanisms and highlighted the influence of various factors such as temperature. Investigations were conducted on the p-type semiconductor Ag₂Te over an extensive temperature range of 163 K to 520 K.

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Cite This Study

Fangary et al. (2026) studied this question.

synapsesocial.com/papers/69be37866e48c4981c6772cdhttps://doi.org/10.1038/s41598-026-39918-1
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