Publications by authors named "Chia-Jung Chu"

Article Synopsis
  • Light can have both orbital angular momentum (OAM) and spin angular momentum (SAM), creating a vast range of momentum states useful for information processing and communication.
  • When OAM light interacts with silicon nanowire field-effect transistors, it significantly enhances photocurrent as OAM increases from 0ℏ to 5ℏ, due to improved photogating and photoconductive effects.
  • The findings suggest a new way to control photocurrent, which could lead to advancements in optoelectronics technology.
View Article and Find Full Text PDF

A new flexible memory element is crucial for mobile and wearable electronics. A new concept for memory operation and innovative device structure with new materials is certainly required to address the bottleneck of memory applications now and in the future. We report a new nonvolatile molecular memory with a new operating mechanism based on two-dimensional (2D) material nanochannel field-effect transistors (FETs).

View Article and Find Full Text PDF
Article Synopsis
  • Researchers developed a technique to enhance nanowire sensors for detecting nonpolar and neutral molecules in ionic solutions by measuring changes in permittivity caused by molecular interactions.
  • The method involves analyzing the complex impedance of the nanowire, allowing for the detection of substances like electrically neutral histidine at 1 pM sensitivity and nonpolar molecules like hexane.
  • The technique works with nanowires regardless of whether they have a surface-insulating oxide and provides insights into the characteristics of molecular interactions through changes in amplitude and phase of the impedance.
View Article and Find Full Text PDF

We argue that the structure ordering of self-assembled probing molecular monolayers is essential for the reliability and sensitivity of nanowire-based field-effect sensors because it can promote the efficiency for molecular interactions as well as strengthen the molecular dipole field experienced by the nanowires. In the case of monolayers, we showed that structure ordering could be improved by means of electrical field alignment. This technique was then employed to align multilayer complexes for nanowire sensing applications.

View Article and Find Full Text PDF