Electrophysical Characterization of Photodetectors Based on Semiconductor Structures Si (Li) and Si(Au)

  • Ilhom I. Maripov Tashkent State Agrarian University, Tashkent Region, Uzbekistan https://orcid.org/0009-0005-1683-2260
  • Sali A. Radzhapov Physical-Technical Institute of Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
  • Sardor F. Xasanov Tashkent State Agrarian University, Tashkent Region, Uzbekistan
  • Damir B. Istamov Physical-Technical Institute of Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
  • Yusuf T. Yuldashev Tashkent State Agrarian University, Tashkent Region, Uzbekistan
  • Diyora Axnazarova Gulistan State University, Gulistan, Uzbekistan
  • Shamshiddin A. Ashirov Gulistan State University, Gulistan, Uzbekistan
Keywords: Detector, Heterostructure, Silicon, Germanium, Semiconductor p–i–n structure, p–n junction, Electrophysical properties

Abstract

This paper explores the technological and physical principles for developing silicon-lithium (Si(Li)) nuclear radiation detectors with a thickness greater than 1.5 mm and a surface area of at least  The formation of large-area p–i–n structures through lithium ion drift and diffusion mechanisms was analyzed. To evaluate the electrophysical parameters of the detectors, current-voltage (I–V) and capacitance-voltage (C–V) characteristics were measured. The I–V results under reverse bias in the range of  showed extremely low leakage currents  indicating the formation of high-quality  junctions. Beyond 100 V, the current remained nearly constant, forming a plateau region. The findings propose effective technological solutions for the development of highly sensitive, stable, and low-noise radiation detectors.

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Published
2025-12-08
Cited
How to Cite
Maripov, I. I., Radzhapov, S. A., Xasanov, S. F., Istamov, D. B., Yuldashev, Y. T., Axnazarova, D., & Ashirov, S. A. (2025). Electrophysical Characterization of Photodetectors Based on Semiconductor Structures Si (Li) and Si(Au). East European Journal of Physics, (4), 435-441. https://doi.org/10.26565/2312-4334-2025-4-43

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