Results 81 to 90 of about 32,117 (298)

Ultrahigh‐Yield, Multifunctional, and High‐Performance Organic Memory for Seamless In‐Sensor Computing Operation

Advanced Functional Materials, EarlyView.
Molecular engineering of a nonconjugated radical polymer enables a significant enhancement of the glass transition temperature. The amorphous nature and tunability of the polymer, arising from its nonconjugated backbone, facilitates the fabrication of organic memristive devices with an exceptionally high yield (>95%), as well as substantial ...
Daeun Kim, Jaehyoung Ko, Namju Kim, Quynh H. Nguyen, Hoyeon Lee, Joohwan Eo, Seongeon Jin, Ji Eon Kwon, Seung‐Yeol Jeon, Youngdo Jeong, Dongseok Kwon, Sung Gap Im, Sanghan Lee, Byung Chul Jang, Yongho Joo   +14 more
wiley   +1 more source

Stoichiometry-Controlled Surface Reconstructions in Epitaxial ABO₃ Perovskites for Sustainable Energy Applications

Crystals
ABO3 perovskite oxides are a versatile class of materials whose surfaces and interfaces play essential roles in sustainable energy technologies, including catalysis, solid oxide fuel and electrolysis cells, thermoelectrics, and energy-relevant oxide ...
Habib Rostaghi Chalaki, Ebenezer Seesi, Gene Yang, Mohammad El Loubani, Dongkyu Lee   +4 more
doaj   +1 more source

Relative phase stability and lattice dynamics of NaNbO$_3$ from first-principles calculations

, 2011
We report total energy calculations for different crystal structures of NaNbO$_3$ over a range of unit cell volumes using the all-electron full-potential (L)APW method.
K. M. Rabe, M. G. Stachiotti, M. Sepliarsky, P. Blaha, R. Machado   +4 more
core   +1 more source

Tracking the Dynamic and Interactive Metal Oxidation Changes in CoFe, CoNi, and NiFe Bimetallic Hydroxides for Electrocatalytic Oxygen Evolution

Advanced Functional Materials, EarlyView.
Operando hard X‐ray absorption spectroscopy is applied to track the dynamic and interactive metal oxidation changes in iron group bimetallic hydroxides under different chemical and electrochemical conditions. It shows that Co and Fe oxidation are relatively equal and synchronized in CoFeOxHy.
Jinzhen Huang, Adam H. Clark, Juliana Bruneli Falqueto, Erica D. Clinton, Kenneth Crossley, Thomas J. Schmidt, Emiliana Fabbri   +6 more
wiley   +1 more source

Highly Stable Luminous "snakes" from CsPbX3 Perovskite Nanocrystals Anchored on Amine-Coated Silica Nanowires [PDF]

, 2019
CsPbX3 (X = Cl, Br, and I) perovskite nanocrystals (NCs) are known for their exceptional optoelectronic properties, yet the material's instability toward polar solvents, heat, or UV irradiation greatly limits its further applications.
He, L, Jia, M, Jurow, MJ, Liu, Y, Pan, A, Wu, Y, Zhang, Y, Zheng, F   +7 more
core  

Optical Properties of Organometallic Perovskite: An ab initio Study using Relativistic GW Correction and Bethe-Salpeter Equation

, 2014
In the development of highly efficient photovoltaic cells, solid perovskite systems have demonstrated unprecedented promise, with the figure of merit exceeding nineteen percent of efficiency.
Ahmed, Towfiq, Chia, Elbert E. M., La-O-Vorakiat, C., Lam, Y. M., Salim, T., Zhu, Jian-Xin   +5 more
core   +1 more source

Growth of Millimeter‐Sized BaTaO2N Single Crystals by an NH3‐Assisted BaCl2 Flux Method

Advanced Functional Materials, EarlyView.
Millimeter‐sized BaTaO2N single crystals are successfully grown from a BaCl2 flux under NH3 flow. Their comprehensive characterization, including dielectric properties, is demonstrated, and the possible growth mechanisms are discussed. Abstract Perovskite‐type oxynitrides have attracted considerable attention due to their excellent photocatalytic ...
Ginji Harada, Mirabbos Hojamberdiev, Hajime Wagata   +2 more
wiley   +1 more source

Trapped charge driven degradation of perovskite solar cells

, 2016
Perovskite solar cells have shown fast deterioration during actual operation even with encapsulation, but its mechanism has been elusive. We found the fundamental mechanism for irreversible degradation of perovskite materials in which trapped charges ...
Ahn, Namyoung, Byun, Junseop, Choi, Mansoo, Jang, Min Seok, Kwak, Kwisung, Lee, Byung Yang, Lee, Jong-Kwon, Pikhitsa, Peter V., Yoon, Heetae   +8 more
core   +2 more sources

Synthesis and characterization of complex perovskite solid solutions.

, 2010
Materials based on the solid solution of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 ((1-x)PMN-xPT) show some of the best piezoelectric and ferroelectric properties. Although the ferro-/piezoelectric properties are very good, there are drawbacks to this system such as difficulty in preparing pure phase ceramics and low operating temperature range resulting from the ...
openaire   +2 more sources

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source