Results 41 to 50 of about 28,256 (297)

Ultrafast and stable planar photodetector based on SnS2 nanosheets/perovskite structure

Scientific Reports, 2021
Two-dimensional (2D) transition metal dichalcogenides are promising candidates of photodetectors where they are commonly grown parallel to the substrate due to their 2D characteristics in micrometer scales from exfoliation of bulk crystals or through ...
Leyla Shooshtari, Ali Esfandiar, Yasin Orooji, Mahmoud Samadpour, Reza Rahighi   +4 more
doaj   +1 more source

Charge Ordering and Phase Competition in the Layered Perovskite Lasr2mn2o7

, 1999
Charge-lattice fluctuations are observed in the layered perovskite manganite LaSr2Mn2O7 by Raman spectroscopy as high as 340 K and with decreasing temperature they become static and form a charge ordered (CO) phase below TCO=210 K.
A. dos Santos, A. K. Cheetham, B. J. Campbell, D. B. Romero, D. E. Cox, D. E. Cox, D. N. Argyriou, D. N. Argyriou, E. T. Heyen, G. Blumberg, G. F. Strouse, H. A. Mook, H. N. Bordallo, J. B. A. A. Elemans, J. B. Goodenough, J. F. Mitchell, J. K. Furdyna, J. P. Pouget, J. S. Gardner, K. Hanif, L. Vasiliu-Doloc, M. Kubota, M. N. Iliev, M. Takata, P. Calvani, P. D. Battle, P. G. Radaelli, R. J. McQueeney, T. G. Perring, T. Kimura, T. Mizokawa, V. Kiryukhin, Y. Moritomo   +32 more
core   +1 more source

Superlattice-induced ferroelectricity in charge-ordered La$_{1/3}$Sr$_{2/3}$FeO$_{3}$ [PDF]

, 2019
Charge-order-driven ferroelectrics are an emerging class of functional materials, distinct from conventional ferroelectrics, where electron-dominated switching can occur at high frequency.
Neaton, Jeffrey B., Park, Se Young, Rabe, Karin M.   +2 more
core   +3 more sources

Optoelectronic Properties of Layered Perovskite Solar Cells [PDF]

Solar RRL, 2019
Herein, the optoelectronic properties of interface‐engineered perovskite 2D|3D‐heterojunction structure solar cells are reported. The reciprocity theorem is applied to determine the maximum open‐circuit voltage (Voc) the device can deliver under solar illumination.
Bekele Hailegnaw, Sanghyun Paek, Kyung Taek Cho, Yonghui Lee, Fathi Ongül, Mohammad Khaja Nazeeruddin, Markus Clark Scharber   +6 more
openaire   +2 more sources

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

A New Iron Pnictide Oxide (Fe2As2)(Ca5(Mg,Ti)4Oy) and a New Phase in Fe-As-Ca-Mg-Ti-O system

, 2012
A new layered iron arsenide oxide (Fe2As2)(Ca5(Mg,Ti)4Oy) and its structural derivative were found in the Fe-As-Ca-Mg-Ti-O system. The crystal structure of (Fe2As2)(Ca5(Mg,Ti)4Oy) is identical to that of (Fe2As2)(Ca5(Sc,Ti)4Oy), which was reported in our
A. Iyo, C.H. Lee, Chen, Deng, Guo, H. Eisaki, H. Kito, Hsu, K. Kihou, Kamihara, Kamihara, Kito, Lee, Miyazawa, Ogino, Ogino, Ogino, P.M. Shirage, Rotter, Shannon, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Shirage, Tapp, Tegel, Zhu, Zhu   +36 more
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Rationalizing the catalytic surface area of oxygen vacancy‐enriched layered perovskite LaSrCrO4 nanowires on oxygen electrocatalyst for enhanced performance of Li–O2 batteries

Carbon Energy
Efficient electrocatalysis at the cathode is crucial to addressing the limited stability and low rate capability of Li−O2 batteries. This study examines the kinetic behavior of Li−O2 batteries utilizing layered perovskite LaSrCrO4 nanowires (NWs ...
Myeong‐Chang Sung, Chan Ho Kim, Byoungjoon Hwang, Dong‐Wan Kim   +3 more
doaj   +1 more source

Non-cubic layered structure of Ba(1-x)K(x)BiO3 superconductor

, 2003
Bismuthate superconductor Ba(1-x)K(x)BiO3 (x=0.27-0.49, Tc=25-32K) grown by an electrolysis technique was studied by electron diffraction and high-resolution electron microscopy.
A.P. Menushenkov, A.W. Sleight, B. Batlogg, C.H. Du, D.E. Cox, E.A. Hewat, L. A. Klinkova, L.A. Klinkova, L.A. Klinkova, L.A. Klinkova, L.F. Mattheiss, M. Norton, M. Uchida, N. V. Barkovskii, N.V. Anshukova, P.M. Woodward, R.J. Cava, S. Pei, S. Salem-Sugui, Jr., S.M. Heald, V. I. Nikolaichik, V.I. Nikolaichik, V.I. Nikolaichik, Y. Matsui, Y. Nagata, Y. Yacoby   +25 more
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source