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A study of the optical response speed of silicon Bulk - Barrier photodiodes based on simulation results

P. PAPADOPOULOU1,* , N. GEORGOULAS2,* , L. MAGAFAS3

Affiliation

  1. Department of Science, Technological Educational Institute of Kavala, St. Loukas 65404 Kavala, Greece.
  2. Laboratory of Electrical and Electronic Materials Technology, Department of Electrical and Computer Engineering, Democritus University of Thrace, 67100, Xanthi, Greece
  3. Department of Electrical Engineering, Technological Educational Institute of Kavala, St. Loukas 65404 Kavala, Greece

Abstract

In this paper, an extensive study of the transient optical response speed of silicon Bulk–Barrier Diodes (BBDs) is presented. This study is based on the simulation results obtained with a 2-D device simulator (S-PISCES and LUMINOUS). The influence of significant quantities, as the applied voltage, the incident light power and the light wavelength, on the optical response speed of silicon Bulk–Barrier Diodes was investigated. As a result of this study we propose a model that calculates the cut–off frequency (optical response speed) of silicon BBDs when a modulated light is applied. Simulation results verify the validity of the proposed model and show that it is possible to achieve high speed optical response by choosing appropriate operational parameters.

Keywords

Bulk-Barrier Diodes, Silicon photodiodes, optical response speed, Device Simulation.

Citation

P. PAPADOPOULOU, N. GEORGOULAS, L. MAGAFAS, A study of the optical response speed of silicon Bulk - Barrier photodiodes based on simulation results, Optoelectronics and Advanced Materials - Rapid Communications, 1, 8, August 2007, pp.379-384 (2007).

Submitted at: April 9, 2007

Accepted at: July 8, 2007