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Related Concept Videos

Modeling of Diode Reverse Characteristics01:14

Modeling of Diode Reverse Characteristics

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In electronic circuits, reverse-biased diode configurations are critical for regulating voltage levels. Zener diodes exploit the reverse breakdown phenomenon and exhibit a controlled breakdown at a specific Zener voltage (VZ). They are designed to maintain a constant voltage across their terminals and are commonly used for voltage regulation in circuits.
When a reverse voltage applied to a Zener diode exceeds its breakdown voltage, the diode enters the breakdown region. At this point, the...
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Understanding the behavior of diodes when forward-biased is a fundamental aspect of electronic circuit design and analysis. This analysis primarily utilizes two models: the exponential diode model and the constant-voltage-drop model. The exponential model comes into play when the source voltage exceeds 0.5 volts, pushing the diode current to rise exponentially above the saturation current. This relationship is graphically depicted in the current-voltage (I-V) curve, illustrating the diode's...
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Updated: Mar 7, 2026

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Numerical Modeling of Silicon Photodiodes for High-Accuracy Applications Part I. Simulation Programs.

Jon Geist1, Deane Chandler-Horowitz1, A M Robinson2

  • 1National Institute of Standards and Technology, Gaithersburg, MD 20899.

Journal of Research of the National Institute of Standards and Technology
|February 11, 2017
PubMed
Summary

This study evaluates PC-1D for silicon photodiode simulations, introducing optimized interfaces for accurate internal quantum efficiency modeling. Enhanced batch-mode operation improves dark current correction and numerical precision.

Keywords:
PC-1Dhigh accuracyinternal quantum efficiencyphotodiode modelingsilicon photodiodes

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Area of Science:

  • Semiconductor Device Physics
  • Optoelectronics
  • Computational Modeling

Background:

  • Accurate simulation of silicon photodiodes is crucial for device design and performance analysis.
  • Existing modeling tools may have limitations in achieving high numerical accuracy and convenient bias condition handling.

Purpose of the Study:

  • To assess the suitability of the PC-1D semiconductor device modeling program for high-accuracy silicon photodiode simulations.
  • To develop optimized user interface programs for enhanced batch-mode operation of PC-1D.

Main Methods:

  • Utilized the PC-1D modeling program for silicon photodiode simulations.
  • Developed a set of user interface programs to facilitate high-accuracy batch-mode operation.
  • Implemented corrections for dark current under various bias conditions prior to quantum efficiency calculation.

Main Results:

  • Demonstrated the suitability of PC-1D for high-accuracy silicon photodiode modeling.
  • The optimized interface provides convenient access to PC-1D's highest numerical accuracy.
  • Improved modeling by incorporating dark current corrections, enhancing internal quantum efficiency calculations.

Conclusions:

  • PC-1D is a suitable tool for high-accuracy silicon photodiode simulations.
  • The developed user interface programs significantly enhance the practical utility of PC-1D for detailed photodiode analysis.
  • Optimized batch-mode operation offers superior control and accuracy compared to the standard PC-1D interface.