Compounds of the Structural Type of Calcium Titanate
TLDR
In this paper, it was shown that the structure of nickel oxide is not strictly cubic, but only pseudo-cubic, and that some of the X-ray reflexions can be explained by a small distortion of the cubic lattice along an octahedral axis.Abstract:
IN a previous communication1, it was recorded that precision X-ray powder methods with a large-diameter camera show that the structure of nickel oxide is not strictly cubic, but only pseudo-cubic. Splitting of some of the X-ray reflexions into more than one component is explained if a small distortion of the cubic lattice along an octahedral axis is assumed, so that the true symmetry is rhombohedral hexagonal.read more
Citations
More filters
Journal ArticleDOI
Organometal Perovskite Light Absorbers Toward a 20% Efficiency Low-Cost Solid-State Mesoscopic Solar Cell
TL;DR: In this article, the perovskite CH3NH3PbX3 (X = Cl, Br, or I) sensitizer made a breakthrough in solid-state mescoscopic solar cells, where the first record efficiency of around 10% was reported in 2012 using submicrometer-thick TiO2 film sensitized with CH 3NH3pbI3. A rapid increase in efficiency approaching 14% followed shortly.
Journal ArticleDOI
The perovskite structure—a review of its role in ceramic science and technology
TL;DR: In this paper, the perovskite structure is used to illustrate the relationship of structure to composition, and the history of the fundamental science of structure-to-composition is described.
Journal ArticleDOI
BaTiO3-based piezoelectrics: Fundamentals, current status, and perspectives
Matias Acosta,Nikola Novak,Virginia Rojas,Satyanarayan Patel,Satyanarayan Patel,Rahul Vaish,Jurij Koruza,George A. Rossetti,Jürgen Rödel +8 more
TL;DR: A critical review that encompasses the fundamentals and state-of-the-art knowledge of barium titanate-based piezoelectrics is presented in this paper, where a detailed compilation of their functional and mechanical properties is provided.
Journal ArticleDOI
Diisopropylammonium Bromide Is a High-Temperature Molecular Ferroelectric Crystal
Da Wei Fu,Hong-Ling Cai,Yuanming Liu,Qiong Ye,Wen Zhang,Yi Zhang,Xue Yuan Chen,Gianluca Giovannetti,Massimo Capone,Jiangyu Li,Ren-Gen Xiong +10 more
TL;DR: DIPAB is a molecular alternative to perovskite ferroelectrics and ferroelectric polymers in sensing, actuation, data storage, electro-optics, and molecular or flexible electronics and exhibits good piezoelectric response and well-defined ferro electric domains.
Journal ArticleDOI
Advantages and Challenges of Relaxor-PbTiO3 Ferroelectric Crystals for Electroacoustic Transducers- A Review.
TL;DR: In this review, the performance merits of relaxor-PT crystals in various electroacoustic devices are presented from a piezoelectric material viewpoint and the impacts and challenges are summarized to guide on-going and future research in the development of relaxors for the next generation electroac acoustic transducers.
References
More filters
Journal ArticleDOI
Structure of Nickel Oxide
TL;DR: The detection of extra reflexions in powder photographs of graphite has led to the description of a second crystalline form as discussed by the authors, which apparently co-exists with the structure established by Bernal.