Results 111 to 120 of about 43,328 (293)

The Dawn of Lead‐Free Perovskite Solar Cell: Highly Stable Double Perovskite Cs2AgBiBr6 Film

Advanced Science, 2018
Recently, lead‐free double perovskites have emerged as a promising environmentally friendly photovoltaic material for their intrinsic thermodynamic stability, appropriate bandgaps, small carrier effective masses, and low exciton binding energies. However,
Cuncun Wu, Qiaohui Zhang, Yang Liu, Wei Luo, Xuan Guo, Ziru Huang, Hungkit Ting, Weihai Sun, Xinrui Zhong, Shiyuan Wei, Shufeng Wang, Zhijian Chen, Lixin Xiao   +12 more
doaj   +1 more source

Impact of Lattice Heterogeneity on Broadband Optical Retardation in Stacked 2D Perovskite Single Crystals

Advanced Functional Materials, EarlyView.
It is shown that interfaces between organic and inorganic layers govern long‐range stacking disorder and in‐plane anisotropy in 2D metal‐halide perovskites. By comparing single‐cation AB‐AB and ordered mixed‐cation ABCD‐ABCD stackings, SCXRD reveals enhanced mosaicity, while optics confirm high birefringence.
Yixuan Dou, Nicholas Nici, Sunhao Liu, Xiaoming Wang, Yanfa Yan, Carla Slebodnick, Lina Quan   +6 more
wiley   +1 more source

Extensive Review of Materials for Next‐Generation Transparent Batteries and Their Design Strategies

Advanced Functional Materials, EarlyView.
Review explores emerging materials and design strategies for transparent batteries, examining electrodes, electrolytes, separators, and device architectures optimized for high electrochemical performance, mechanical flexibility, and optical transparency.
Atul Kumar Mishra, Shuvaraj Ghosh, Malkeshkumar Patel, Sourov Hossain, Ju‐Hyung Yun, Joondong Kim   +5 more
wiley   +1 more source

Chemical tuning of a double double perovskite oxide

Chemical Communications
Chemical tuning has been demonstrated for the first time in a double double perovskite. Ordering over five cation sites is preserved in LaxCa1−xMnMnReO6 ferrimagnets up to x ≥ 0.5 while La3+/Ca2+ substitution tunes magnetic properties.
Azizah Almadhi, Sean D. Injac, Kunlang Ji, Clemens Ritter, J. Paul Attfield   +4 more
openaire   +1 more source

Overcoming the Stability Issue for Hydrophobic Hole Transporting Layers Utilized in Tin‐Lead Perovskite and Tandem Solar Cells

Advanced Functional Materials, EarlyView.
A non‐annealed process is developed for non‐PEDOT:PSS inverted tin‐lead perovskite solar cells to attain PCE 22.67% for the PTAA‐based device. When PTAA is applied in an all‐perovskite tandem solar cell, a record efficiency of 28.14% is obtained with great stability for the efficiency maintaining 96% of its original value for 500 h under one‐sun ...
Chun‐Hsiao Kuan, Xianyuan Jiang, Qilin Zhou, Xin Wen, Sung‐Fu Hung, Hsin‐Lung Chen, Yun‐Sheng Shih, Sudhakar Narra, Mingyu Ma, Jau‐Wern Chiou, Jhih‐Min Lin, Yi Hou, Eric Wei‐Guang Diau   +12 more
wiley   +1 more source

Investigation of lead-free halide K2AgSbBr6 double Perovskite's structural, electronic, and optical properties using DFT functionals

Chemical Physics Impact
In recent years, the remarkable photoelectric properties exhibited by perovskite materials have stimulated scientific inquiry, prompting investigations into novel perovskite variants and derivatives characterized by environmentally friendly attributes ...
Abdelkebir Ejjabli, Mohamed Karouchi, Mohamed Al-Hattab, Omar Bajjou, Khalid Rahmani, Youssef Lachtioui   +5 more
doaj   +1 more source

Electronic and Optical Properties of Double Perovskite Oxide LaFeWO6: A Theoretical Understanding from DFT Calculations [PDF]

E3S Web of Conferences
In recent years, double perovskite oxides have gained attention as promising candidates in the realms of solar cells and catalysis. By adjusting their composition and engineering the band gap, numerous materials are being developed for energy-related ...
Ejjabli Abdelkebir, Karouchi Mohamed, Errahoui Hamza, Bajjou Omar, Guerroum Jamal, Elhajji Aymene, Rahmani Khalid, Lachtioui Youssef   +7 more
doaj   +1 more source

Does a Morphotropic Phase Boundary Exist in ZrxHf1‐xO2‐Based Thin Films?

Advanced Functional Materials, EarlyView.
This study investigates 6 nm zirconium‐rich hafnium‐zirconium oxide thin–film metal–insulator–metal capacitors using a combination of experimental methods and machine learning–based molecular dynamics simulations to provide insight into the physical mechanisms that enhance the dielectric constant near 0 V and attribute it to the field‐induced ...
Pramoda Vishnumurthy, Richard Ganser, Dong‐Gyu Kim, Intak Jeon, Chang Hwa Jung, Hanjin Lim, Thomas Mikolajick, Susan Trolier‐McKinstry, Alfred Kersch, Uwe Schroeder   +9 more
wiley   +1 more source

Theory of Half-Metallic Ferrimagnetism in Double Perovskites

Physical Review Letters, 2011
We present a comprehensive theory of the temperature- and disorder-dependence of half-metallic ferrimagnetism in the double perovskite Sr$_2$FeMoO$_6$ (SFMO) with $T_c$ above room temperature. We show that the magnetization $M(T)$ and conduction electron polarization $P(T)$ are both proportional to the magnetization $M_S(T)$ of localized Fe spins.
Erten, Onur, Meetei, O. Nganba, Mukherjee, Anamitra, Randeria, Mohit, Trivedi, Nandini, Woodward, Patrick   +5 more
openaire   +4 more sources

Sustainable A₂B^ⅠB^ⅢX₆ based lead free perovskite solar cells: The challenges and research roadmap for power conversion efficiency improvement

AIMS Materials Science
The stability issues in the widely known CH3NH3PbI3, lead to the development of alternative halide double perovskite materials, which has received great attention in recent times. Although the stability issue of double halide perovskite seems promising,
Etsana Kiros Ashebir, Berhe Tadese Abay , Taame Abraha Berhe   +2 more
doaj   +1 more source