Photoresponsive piezoelectrics

Y Bai - Frontiers in Materials, 2021 - frontiersin.org
Most piezoelectric materials are not interactive with visible light, meaning that their band
gaps are beyond the photon energies of the visible part of the light spectrum. The first …

Optomechanical Mapping of Ferroelectric Domains and the Piezo‐Photovoltaic Effect in Ba‐ and Ni‐Doped (K0.5Na0.5)NbO3

G Vats, Y Bai, J Seidel - Advanced Photonics Research, 2021 - Wiley Online Library
The piezo‐photovoltaic effect has been recently proposed as an analogy of the flexo‐
photovoltaic effect in noncentrosymmetric ferroelectrics that are also piezoelectric in nature …

Recycling hazardous and energy-demanding piezoelectric ceramics using an oxide–halide perovskite upside-down composite method

SS Anandakrishnan, M Tabeshfar, M Nelo… - RSC …, 2024 - pubs.rsc.org
Piezoelectric ceramics are widely employed in electromechanical coupling components
such as sensors, actuators, and transducers owing to their excellent performance, cost …

Current modulation by optoelectric control of ferroelectric domains

G Vats, J Perantie, J Palosaari, J Juuti… - ACS Applied …, 2020 - ACS Publications
Optoelectric control of domains is likely to pave the foundation for optoferroelectric devices.
This work reports the combined effect of light and low-voltage electric bias for optoelectric …

Filterless Visible‐Range Color Sensing and Wavelength‐Selective Photodetection Based on Barium/Nickel Codoped Bandgap‐Engineered Potassium Sodium …

VA Balanov, F Temerov, V Pankratov, W Cao… - Solar RRL, 2023 - Wiley Online Library
Photosensors, photodetectors, or color sensors are key components for various optical and
optoelectronic applications. Semiconductor‐based photodetection has been a dominator …

New insight into effects of oxygen vacancies on crystal structure and electrical properties of barium titanate dielectric ceramic

X Wang, G Zhang, Q Sun, Z Fei, Y Wang - Journal of Solid State Chemistry, 2023 - Elsevier
The oxygen vacancies in perovskite-type dielectric ceramic influence the crystal structure
and electrical properties of the ceramics significantly. In the work, the oxygen vacancies are …

Vacancy-induced niobate perovskite-tungsten bronze composite for synergetic tuning of ferroelectricity and band gaps

Y Bai, AA Kistanov, W Cao, J Juuti - The Journal of Physical …, 2021 - ACS Publications
Niobate perovskites like the (K, Na) NbO3 (KNN) family are among the most important lead-
free ferroelectrics. Ba and Ni have been co-doped into KNN to induce Ni2+-oxygen vacancy …

A single‐material multi‐source energy harvester, multifunctional sensor, and integrated harvester–sensor system—demonstration of concept

Y Bai, J Palosaari, P Tofel, J Juuti - Energy Technology, 2020 - Wiley Online Library
Single‐source energy harvesters that convert solar, thermal, or kinetic energy into electricity
for small‐scale smart electronic devices and wireless sensor networks have been under …

A simulation model for narrow band gap ferroelectric materials

B Ducharne, J Juuti, Y Bai - Advanced Theory and Simulations, 2020 - Wiley Online Library
Various ferroelectric simulation models have been developed in recent decades in order to
study the mechanisms and predict the behaviors of ferroelectrics by simulating their …

Growth of tungsten bronze phase out of niobate perovskite phase for opto‐ferroelectric applications

Y Bai, C Prucker, NH Khansur - Journal of the American …, 2022 - Wiley Online Library
Engineering the optical bandgaps of classic ferroelectrics from the typical ultraviolet range
down to the visible range is an emerging methodology of developing the next‐generation …