Piezoelectric actuation<? pag\break?> for integrated photonics

H Tian, J Liu, A Attanasio, A Siddharth… - Advances in Optics …, 2024 - opg.optica.org
Recent decades have seen significant advancements in integrated photonics, driven by
improvements in nanofabrication technology. This field has been developed from integrated …

Vertical etching of scandium aluminum nitride thin films using TMAH solution

ASMZ Shifat, I Stricklin, RK Chityala, A Aryal, G Esteves… - Nanomaterials, 2023 - mdpi.com
A wide bandgap, an enhanced piezoelectric coefficient, and low dielectric permittivity are
some of the outstanding properties that have made Sc x Al 1− x N a promising material in …

Domain control and periodic poling of epitaxial ScAlN

F Yang, G Yang, D Wang, P Wang, J Lu, Z Mi… - Applied Physics …, 2023 - pubs.aip.org
ScAlN is an emerging ferroelectric material that possesses large bandgap and strong
piezoelectricity and holds great promises for enhanced χ (2) nonlinearity. In this study, we …

Piezoelectric aluminum nitride thin films for CMOS compatible MEMS: Sputter deposition and do**

S Sandeep, RMR Pinto, J Rudresh… - Critical Reviews in …, 2024 - Taylor & Francis
Amongst the piezoelectric thin films suited for microelectromechanical systems (MEMS), AlN
has gained particular technological relevance due to its unique material properties (large …

Development of high uniformity Al1-xScxN piezoelectric film stack dry etching process on 8-inch silicon wafers

J Yan, Y Zhou, S Zhang - Vacuum, 2023 - Elsevier
This paper have investigated the basic properties of inductively coupled plasma reactive ion
etching (ICP-RIE) of scandium doped aluminum nitride (Al 1-x Sc x N) thin films on 8-inch …

Measured optical losses of Sc doped AlN waveguides

B Friedman, S Barth, T Schreiber, H Bartzsch, J Bain… - Optics …, 2024 - opg.optica.org
Although Sc doped AlN (ScAlN) has been used extensively in micro-electro-mechanical
systems (MEMS) devices and more recently in optical devices, there have not been …

Vertical and Lateral Etch Survey of Ferroelectric AlN/Al1−xScxN in Aqueous KOH Solutions

Z Tang, G Esteves, J Zheng, RH Olsson III - Micromachines, 2022 - mdpi.com
Due to their favorable electromechanical properties, such as high sound velocity, low
dielectric permittivity and high electromechanical coupling, Aluminum Nitride (AlN) and …

Development of ScAlN PMUTs for medical applications

CB Karuthedath, AT Sebastian, P Helistö… - Journal of …, 2023 - ieeexplore.ieee.org
In this paper, the design, fabrication and characterization of PMUTs for medical applications
are discussed. Scandium (20% Sc/(Sc+ Al)) doped AlN is used as the piezoelectric material …

[HTML][HTML] Impact of surface preparation on the epitaxial growth of SrTiO3 on ScAlN/GaN heterostructures

EN **, AC Lang, BP Downey, VJ Gokhale… - Journal of Applied …, 2023 - pubs.aip.org
Heterogeneous integration of functional oxides with ultra-wide bandgap (UWBG)
semiconductors is desired for the realization of novel hybrid systems applicable to a wide …

Dry and wet etching of single-crystal AlN

HH Wan, CC Chiang, JS Li, NS Al-Mamun… - Journal of Vacuum …, 2024 - pubs.aip.org
The dry etching of high crystal quality c-plane AlN grown by metal organic chemical vapor
deposition was examined as a function of source and chuck power in inductively coupled …