101 citations · 127 across the 10 of their papers we have counts for
10 papers
Quantitative correlation between structural (dis-)order and diffuseness of phase transition in lead scandium tantalate
T. Granzow, A. Aravindhan, Y. Nouchokgwe +9
Ferroelectrics show a phase transition to a paraelectric phase at a well-defined transition temperature. Introducing disorder makes this transition diffuse, and the system becomes…
Sub-micron Cu(In,Ga)Se2 solar cell with efficiency of 18.2% enabled by a hole transport layer
Taowen Wang, Longfei Song, Saeed Bayat +6
Reducing the thickness of Cu(In,Ga)Se2 solar cells is a key objective in order to reduce production cost and to improve sustainability. The major challenge for sub-micron Cu(In,Ga)…
Solution-Based Fabrication of High-Performance KNaNbO Thin Films for Surface Haptics
Nagamalleswara Rao Alluri, Longfei Song, Stephanie Girod +8
KNaNbO is among the most promising lead-free piezoelectrics. While its sputtered films match the performance of the champion piezoelectric Pb(Zr,Ti)O, repro…
Ferroelectric HfO-ZrO multilayers with reduced wake-up
Barnik Mandal, Adrian-Marie Philippe, Nathalie Valle +3
Since the discovery of ferroelectricity in HfO thin films, significant research has focused on Zr-doped HfO and solid solution (Hf,Zr)O thin films. Functional propertie…
Highly Transparent Lead-Free Piezoelectric Haptic Device
Longfei Song, Sebastjan Glinsek, Nagamalleswara Rao Alluri +6
Acoustic haptic technology adds touch sensations to human-machine interfaces by integrating piezoelectric actuators onto touchscreens. Traditional piezoelectric haptic technologies…
Giant Strain Tunability in Polycrystalline Ceramic Films via Helium Implantation
A. Blàzquez Martínez, S. Glinšek, T. Granzow +5
Strain engineering is a powerful tool routinely used to control and enhance properties such as ferroelectricity, magnetic ordering, or metal-insulator transitions. Epitaxial strain…
Crystallization of piezoceramic films on glass via flash lamp annealing
Longfei Song, Juliette Cardoletti, Alfredo Blazquez Martinez +5
Integration of thin-film oxide piezoelectrics on glass is imperative for the next generation of transparent electronics to attain sensing and actuating functions. However, their cr…
Birefringence induced by antiferroelectric switching in transparent polycrystalline film
Pranab Parimal Biswas, Cosme Milesi-Brault, Alfredo Blázquez Martínez +7
The most characteristic functional property of antiferroelectric materials is the possibility to induce a phase transition from a non-polar to a polar phase by an electric field. H…
Piezoelectricity in hafnia
Sangita Dutta, Pratyush Buragohain, Sebastjan Glinsek +7
Because of its compatibility with semiconductor-based technologies, hafnia (HfO) is today's most promising ferroelectric material for applications in electronics. Yet, knowle…
Critical field anisotropy in the antiferroelectric switching of PbZrO3 films
Cosme Milesi-Brault, Nicolas Godard, Stéphanie Girod +6
Antiferroelectrics have been recently sparking interest due to their potential use in energy storage and electrocaloric cooling. Their main distinctive feature is antiferroelectric…