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Updated: Apr 23, 2026

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n-Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz.

Lazaros Panagiotidis1, Filip Aniés1, Yiyang Yu2,3

  • 1Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.

Advanced Materials (Deerfield Beach, Fla.)
|April 22, 2026
PubMed
Summary
This summary is machine-generated.

Organic polymer Schottky diodes now operate up to 18.5 GHz, the fastest yet. These new radiofrequency (RF) devices offer high performance for wearable and Internet of Things (IoT) electronics.

Keywords:
Schottky diodesadhesion lithographycontact engineeringmolecular dopingnanogaporganic rectifiers

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Organic Electronics

Background:

  • Growing demand for affordable radiofrequency (RF) electronics driven by AI, IoT, and telecommunications.
  • Challenges in manufacturing RF devices meeting stringent performance criteria.

Purpose of the Study:

  • To demonstrate high-performance organic polymeric RF Schottky diodes and rectifier circuits.
  • To achieve unprecedented operating frequencies for organic RF electronics.

Main Methods:

  • Fabrication of Schottky diodes using molecularly n-doped polymer (N2200) on sub-20-nm nanogap electrodes.
  • Utilizing a coplanar architecture to minimize parasitic capacitances.
  • Engineering electron-injecting contacts to reduce resistance and enhance performance.

Main Results:

  • Achieved operation up to 18.5 GHz, the highest frequency for organic devices.
  • Demonstrated low turn-on voltage (≈0.15 V), high rectification ratio (>10^5), and ultra-low capacitance (≈2 pF).
  • RF rectifier circuits achieved a maximum output voltage of 1.43 V.

Conclusions:

  • The developed organic Schottky diodes offer a scalable manufacturing solution for high-frequency RF applications.
  • These devices are suitable for emerging RF electronics in wearables and the Internet of Things (IoT) ecosystem.
  • The demonstrated performance advances organic electronics capabilities in high-frequency applications.