Year 2021

• EM-Driven Multi-Objective Optimization of a Generic Monopole Antenna by Means of a Nested Trust-Region Algorithm

  Publication

  • A. Bekasiewicz
  • S. Kozieł
  • P. Płotka
  • K. Zwolski

  - Applied Sciences-Basel - Year 2021

  Antenna structures for modern applications are characterized by complex and unintuitive topologies that are difficult to develop when conventional experience-driven techniques are of use. In this work, a method for automatic generation of antenna geometries in a multi-objective setup has been proposed. The approach involves optimization of a generic spline-based radiator with adjustable number of parameters using a nested trust-region-based...

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Year 2016

• Electrical characterization of diamond/boron doped diamond nanostructures for use in harsh environment applications

  Publication

  • Ł. Gołuński
  • K. Zwolski
  • P. Płotka

  - IOP Conference Series: Materials Science and Engineering - Year 2016

  The polycrystalline boron doped diamond (BDD) shows stable electrical properties and high tolerance for harsh environments (e.g. high temperature or aggressive chemical compounds) comparing to other materials used in semiconductor devices. In this study authors have designed electronic devices fabricated from non-intentionally (NiD) films and highly boron doped diamond structures. Presented semiconductor devices consist of highly...

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Year 2013

• Al-DIAMOND SCHOTTKY TUNNEL DIODES WITH BARRIER HEIGHT CONTROL

  Publication

  • K. Zwolski

  - Year 2013

  Few-nanometer-thick very highly boron-doped p-type layers were fabricated at metal-semiconductor interfaces of Schottky barrier diodes formed with aluminum on polycrystalline diamond. Preliminary results show that hermionically-assisted tunneling mechanism results in lower voltage drops at forward biasing of these diodes than expected for the Al-diamond metal-semiconductor potential barrier B. The effective barrier height Bpeff...