Results 301 to 310 of about 39,642 (326)

New layered perovskite ruthenates: Ca2RuO4

Physica C: Superconductivity, 1997
Abstract We have newly synthesized two distinct layered ruthenates of Ca2RuO4. They are both related to Sr2RuO4, the layered perovskite superconductor (Tc ≈ 1K) without copper. In contrast with the highly correlated metal Sr2RuO4, both phases of Ca2RuO4 are Mott insulators.
Satoru Nakatsuji, Shin-ichi Ikeda, Yoshiteru Maeno   +2 more
openaire   +1 more source

Quadruple-layered perovskite (CuCl)Ca2NaNb4O13

Journal of Solid State Chemistry, 2012
We will present the synthesis, structure and magnetic properties of a new quadruple-layered perovskite (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13}. Through a topotactic ion-exchange reaction with CuCl{sub 2}, the precursor RbCa{sub 2}NaNb{sub 4}O{sub 13} presumably having an incoherent octahederal tliting changes into (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13} with a
A.Kitada, Y.Tsujimoto, T.Yamamoto, Y.Kobayashi, Y.Narumi, K.Kindo, A.A.Aczel, G.M.Luke, Y.J.Uemura, Y.Kiuchi, Y.Ueda, K.Yoshimura, Y.Ajiro, H.Kageyama   +13 more
openaire   +1 more source

Carrier Transport Layer‐Free Perovskite Solar Cells

ChemSusChem, 2021
AbstractPower conversion efficiencies (PCEs) of up to 25.5 % have been reported for perovskite solar cells (PSCs). Thus, they have shown great potential for commercial applications. Therefore, simplifying technological process and reducing production costs have been a widespread concern among scientific and industrial communities.
Wang, Liang, Yang, Shuzhang, Han, Qianji, Yu, Fengyang, Zhang, Hong, Cai, Xiaoyong, Zhang, Chu, Gao, Liguo, Ma, Tingli   +8 more
openaire   +2 more sources

Noncuprate Layered Perovskite Superconductor

1997
All the high-T c oxide superconductors (HTSC) known to date are copper-based oxides (cuprates) in the layered perovskite crystal structures that contain a planar network of copper and oxygen (CuO2 planes). Without doubt such a planner network provides the essential environment for the occurrence of high T c.
Y. Maeno, S. Ikeda
openaire   +1 more source

Topochemical Modification of Layered Perovskites

MRS Proceedings, 2008
AbstractTopochemical reaction strategies based on two-step intercalation methods are studied. Reactions involving reductive followed by oxidative intercalation are quite effective in making new compounds; the synthesis and characterization of (A2Cl)LaNb2O7 (A = Rb, Cs) are presented.
Jong-Lak Choi, Elisha Josepha, Xiao Zhang, John Wiley   +3 more
openaire   +1 more source

Layered perovskites as ‘soft-ceramics’

Journal of the European Ceramic Society, 1999
Abstract The layered perovskite KCa 2 Nb 3 O 10 is shown to possess large elastic and fracture anisotropies which are explained on the basis of its structure. Its fracture toughness was measured relative to the in-basal and basal-normal directions. Combined with previously determined elastic moduli, the fracture energy release rates and associated ...
Geoff Fair, Michael Shemkunas, William T. Petuskey, Sankar Sambasivan   +3 more
openaire   +1 more source

Synergistically modifying electron transport layers and bottom buried perovskite layers of perovskite solar cells

Journal of Materials Chemistry C, 2023
The electron transport layer (ETL) and its adjacent interface are essentially important for perovskite solar cells (PSCs).
Xiangheng Liu, Zhengyan He, Honglei Yu, Shufang Zhang, Changlin Yao, Qi Zhang, Ping Chen   +6 more
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ChemInform Abstract: Layered Perovskite Halides

ChemInform, 1997
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
C. BELLITTO, P. DAY
openaire   +1 more source

2D Perovskite Capping Layer Enabling Stable Perovskite Photovoltaics

Solar RRL
Interfacial passivation plays a pivotal role in achieving efficient and stable perovskite solar cells. Meanwhile, the introduction of 2D perovskites has also been widely reported to be beneficial for enhancing the performance and stability of devices. Herein, DEAI is used as an ammonium salt, which is spin coated onto the surface of the perovskite film,
Xiao‐Zhao Zhu, Kai‐Li Wang, Jun‐Gan Wang, Yi‐Hong Hao, Jin‐Hui Chen, Namatullah Nizamani, Yuan Liu, Zhao‐Kui Wang, Liang‐Sheng Liao   +8 more
openaire   +1 more source

Perovskite layers make the grade

Science, 2018
Solar Cells Inverted planar perovskite solar cells offer opportunities for a simplified device structure compared with conventional mesoporous titanium oxide interlayers. However, their lower open-circuit voltages result in lower power conversion efficiencies.
openaire   +1 more source