Integrated Optoelectronics and Micro-/Nano-Vacuum Electronics: Future Prospects and Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A:Physics".

Deadline for manuscript submissions: closed (30 March 2026) | Viewed by 841

Special Issue Editors

School of Semiconductors and Physics, North University of China, Taiyuan 030051, China
Interests: carbon-based integrated optoelectronics; micro-/nanoelectronics; superstructured surface light modulation technology
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
Interests: micro- and nanotechnology; vacuum electronic device; power semiconductor device
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Special Issue Information

Dear Colleagues,

It is well known that most electron-vacuum devices have given way to solid-state devices because of the disadvantages of bulky size, high cost, difficulty in integration, etc. However, in some working environments, only electron-vacuum devices can meet the requirements such as high frequency and large power. It has become a promising research field to design novel vacuum electronic devices or integrated optoelectronic devices combined with semiconductor/microfabrication technologies which possess the respective advantages of traditional electron-vacuum devices and solid-state devices. The aim of the Special Issue on “Integrated Optoelectronics and Micro-/Nano-Vacuum Electronics: Future Prospects and Applications” is to invite researchers to share their research achievements about the topics below, and to motivate the design, optimization, and application of novel electron-vacuum devices and integrated optoelectronic devices.

  • Vacuum nanoelectronics;
  • Integrated optoelectronic devices;
  • On-chip vacuum electron devices;
  • Micro-vacuum sensors and detectors;
  • Device and system integration;
  • Vacuum devices.

We look forward to receiving your submissions!

Dr. Kaixi Bi
Dr. Yuwei Wang
Guest Editors

Manuscript Submission Information

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Keywords

  • vacuum devices
  • nanoelectronics
  • microfabrication
  • integrated optoelectronic devices

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Published Papers (1 paper)

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Research

12 pages, 2214 KB  
Article
FeCl3-Intercalated Carbon Nanotube Film for Long-Term Infrared Camouflage in Harsh Environments
by Yijie Li, Zixuan Wang, Yong Wang, Ruiyun Chen and Ganying Zeng
Micromachines 2026, 17(1), 38; https://doi.org/10.3390/mi17010038 - 29 Dec 2025
Viewed by 521
Abstract
Infrared camouflage, realized by engineering temperature and spectral emission characteristics, is crucial in various scientific and engineering fields. Yet, a significant challenge lies in fabricating advanced functional materials that can durably maintain infrared camouflage performance under harsh operational conditions. Herein, we report a [...] Read more.
Infrared camouflage, realized by engineering temperature and spectral emission characteristics, is crucial in various scientific and engineering fields. Yet, a significant challenge lies in fabricating advanced functional materials that can durably maintain infrared camouflage performance under harsh operational conditions. Herein, we report a FeCl3-intercalated carbon nanotube (CNT) film fabricated via a vapor intercalation strategy, with FeCl3 molecules inserted into the interlayer spacing of the CNT. Compared with pristine CNT, the FeCl3-intercalated CNT composite demonstrates significantly enhanced infrared camouflage capabilities, exhibiting apparent temperature variations of +16.7 °C, −6.6 °C, and −144 °C relative to the CNT film, under low (−4 °C), body (34.3 °C), and high (300 °C) temperature backgrounds, respectively. Moreover, extensive durability tests involving heat, insolation, and rain have confirmed the unaltered infrared camouflage performance of the FeCl3-CNT film. The performance enhancement is attributed to the suppressed infrared absorptivity across the 2.5–15.2 μm wavelength range, with a pronounced reduction from 72% to 30% at 15 μm, driven by intercalation-induced charge transfer and the consequent Fermi energy (EF) shift. This work presents a promising approach for designing advanced functional materials to achieve long-term infrared camouflage in complex environments. Full article
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