Narrow/Zero-Gap Materials

A part of this report was introduced in the July 2021 issue of our periodical, “Yano E plus.”

– Graphene, a Zero-gap Material Used as a High-Sensitivity Magnetic Sensor, Has Attracted Many Researchers Due to its Extraordinary Properties –

1. What are Narrow/Zero-Gap Materials (NGM/ZGM)?

1-1. Narrow-Gap Materials

1-2. Zero-Gap Materials

2. Uses of NGM

2-1. Infrared Sensor

2-2. Magnetic Sensor (Hall Elements)

2-3. High-Speed Electronic Devices

2-4. Thermoelectric Conversion Elements

3. Uses of ZGM

3-1. OPV/OLED/ITO

3-2. Transistor Integrated Circuits

4. Market Size Forecasts

5. Research and Development by Universities and Research Institutes

5-1. Toho University

1) Transport Properties of Organic Conductor α-(BEDT-TTF)2I3 under High Pressure

2) World’s First Two-Dimensional Zero-Gap Electric Conductors in Multilayered Single Crystals

3) Development of Green Molecular Electronic Devices with No Energy Loss

4) Quantum Phase Transition of Zero-Mass Electrons

5-2. Tohoku University

1) Resonance Raman Spectroscopy

2) Evaluation of Samples Using Near-Field Raman Spectroscopy

3) Resonance Raman Spectroscopy of Atomic Layer (2D) Materials

5-3. Nagoya University

1) Narrow- Gap Semiconductors and Thermoelectric Conversion

2) Iron Antimonide (FeSb2)

3) Lead and Palladium Oxide (PbPdO2)

4) Calcium and Ruthenium Oxide (Ca2RuO4)

5-4. Nara Institute of Science and Technology

5-5. National Institute for Materials Science

5-6. Hokkaido University

6. Future Prospects

6-1. NGM

6-2. ZGM