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July 10, 2026Journal of Applied Physics

Dual-mode infrared detection via photovoltaic and barrier pyroelectric effects in PbTe p – n junctions

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Authors

AJAlbert JarashneliDKDanil KobtsevAUAlexander Upcher

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Overview

Randomized trial shows enhanced infrared detection using dual photovoltaic and pyroelectric effects in PbTe p-n junctions, indicating improved performance.

Key Points

  • The study aims to explore dual-mode detection in PbTe p-n junctions using photovoltaic and barrier pyroelectric effects.
  • Fabrication of PbTe p-n junctions via indium donor diffusion in single crystals using the Czochralski technique.
  • Measurement of current-voltage and capacitance-voltage characteristics across a wide temperature range (40–190 K).
  • Investigation of both photovoltaic and thermal effects using blackbody radiation and continuous CO2 irradiation.
  • The dark saturation current density was approximately 10−7 A/cm² at T = 100 K.
  • Successful integration of photovoltaic and pyroelectric detection mechanisms was achieved.
  • The PbTe p-n junctions demonstrated responsive infrared detection across mid to long wavelengths.

Cite This Study

Jarashneli et al. (2026) studied this question.

synapsesocial.com/papers/6a508da76eeac72a437a105ahttps://doi.org/10.1063/5.0333930
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