Breaking the Nanometer Barrier: University of Tokyo Unveils World’s Smallest 1nm Semiconducting Nanotubes

July 26, 2026

Academic Jobs Japan

Overview

University of Tokyo researchers, led by Associate Professor Yusuke Nakanishi, have successfully fabricated the world’s smallest semiconducting nanotubes, measuring an unprecedented one nanometer in diameter. This groundbreaking achievement marks a significant step towards ultra-miniaturized electronic components, enabling extreme scaling of electronic properties and positioning Japan at the forefront of developing next-generation alternatives to silicon for future high-performance devices.

In Depth

Background

The semiconductor industry has consistently pursued miniaturization, driven by Moore’s Law, to enhance chip integration and performance. However, as silicon-based technologies approach their fundamental physical limits, there’s an urgent global impetus to discover and develop next-generation electronic materials and architectures. One-dimensional nanomaterials, particularly carbon nanotubes, have garnered significant attention as promising alternatives to silicon due to their superior electrical and mechanical properties. This latest research from the University of Tokyo sets a new milestone in this relentless miniaturization race, further solidifying Japan’s international leadership in advanced nanotechnology.

Key Findings

Researchers at the University of Tokyo have successfully fabricated the world’s smallest semiconducting nanotubes, boasting an unprecedented diameter of just one nanometer. This groundbreaking achievement represents a significant technological leap towards further miniaturization and enhanced performance in electronic devices.

Associate Professor Yusuke Nakanishi and his team employed a unique synthesis method to produce these ultra-narrow semiconducting nanotubes with exceptional structural precision. This method allows for atomic-level control, enabling the optimization of electronic properties at a scale previously unattainable with conventional semiconductor materials. Specifically, these 1-nanometer diameter nanotubes are envisioned to function as high-speed, low-power transistors by confining electron channels to their absolute quantum limit. Crucially, the research confirmed that these nanotubes exhibit stable semiconducting properties at room temperature, a vital prerequisite for practical applications. This extreme miniaturization was accomplished through the synergistic integration of cutting-edge materials science and advanced nanofabrication techniques.

The successful creation of these ultra-small semiconducting nanotubes holds profound potential to revolutionize diverse fields, including transistors, sensors, and even quantum computing. It directly contributes to the development of highly energy-efficient devices and next-generation computers capable of significantly faster information processing. The immediate future will focus on addressing technical challenges associated with large-scale manufacturing and seamlessly integrating these nanotubes into existing semiconductor fabrication processes. This pioneering research from the University of Tokyo not only reaffirms Japan’s pivotal role in global scientific and technological advancements but also promises a paradigm shift away from current silicon-centric designs in the electronics industry.

Source: https://www.academicjobs.com/higher-education-news/university-of-tokyo-creates-worlds-smallest-semiconducting-nanotubes-academicjobs-23882

Get our weekly technology intelligence — free

Receive an infographic that lets you judge at a glance whether each field’s analysis report is worth reading.

Subscribe Free — Weekly Tech Intelligence

By subscribing, you’ll receive Troy-Technical’s weekly technology intelligence newsletter.