Publications by authors named "Yangjian Lin"
Facile formation of van der Waals metal contact with III-nitride semiconductors.
Sci Bull (Beijing)
December 2024
Article Synopsis
- - Metal-semiconductor contacts are crucial for enhancing carrier transport in electronic devices, and using van der Waals (vdW) metal contacts can help avoid Fermi-level pinning, especially in two-dimensional semiconductors.
- - This research successfully integrates vdW metal contacts with bulk gallium nitride (GaN) using a dry transfer technique, revealing a vdW gap that significantly improves device performance compared to traditional metal contacts.
- - The vdW contact devices demonstrate exceptionally high responsivity and low dark current, enabling advanced applications like imaging, wireless optical communication, and neuromorphic computing, paving the way for better integrated electronics and optoelectronics.
Scanning moiré fringes (SMFs) in scanning transmission electron microscopy (STEM) have a broad application prospect owing to the low-magnification imaging and hereto the low electron irritation damage, especially in defects localization, strain analysis etc. However, the dynamic evolution mechanism of SMFs is still not clear. In this paper, we carry out in-depth study of SMFs with ferroelectric material GeSe as an example.
View Article and Find Full Text PDFThe structure of thermoelectric materials largely determines the thermoelectric characteristics. Hence, a better understanding of the details of the structural transformation process/conditions can open doors for new applications. In this study, the structural transformation of PbTe (a typical thermoelectric material) is studied at the atomic scale, and both nucleation and growth are analyzed.
View Article and Find Full Text PDFCarbon dots (CDs) have received tremendous attention for their excellent photoluminescence (PL) properties. However, it remains a great challenge to obtain CDs with ultraviolet (UV, 200-400 nm) emission in solid state, which requires strict control of the CDs structure and overcoming the aggregation-caused quenching (ACQ). Herein, a new sp compartmentalization strategy is developed to meet these requirements, by employing acetic acid to promote fractions of sp bonding during the synthesis of CDs.
View Article and Find Full Text PDFEnergy-saving photodetectors are the key components in future photonic systems. Particularly, self-powered photoelectrochemical-type photodetectors (PEC-PDs), which depart completely from the classical solid-state junction device, have lately intrigued intensive interest to meet next-generation power-independent and environment-sensitive photodetection. Herein, we construct, for the first time, solar-blind PEC PDs based on self-assembled AlGaN nanostructures on silicon.
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