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Controlled Crystallization of Hybrid Perovskite Films from Solution Using Prepared Crystal Centers [PDF]

Crystals
The crystallization conditions from the solution play an important role in determining the morphology, phase composition, and photovoltaic properties of perovskite films.
V A Moshnikov, Igor Vrublevsky, Nikita Lushpa   +2 more
exaly   +2 more sources

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Luminescence Centers in Crystals

1976
Investigation of the Spectral-Luminescence Properties of Ruby as Active Laser Medium.- I. Spectral Distribution of Luminescence Quantum Efficiency and Absorption Spectra.- II. Phosphorescence of Ruby. Energy Band Scheme.- III. Color Centers in Ruby.- IV.
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Crystal field of octahedral Yb3+ centers in a CsCaF3 crystal

Physics of the Solid State, 1997
The phenomenological crystal-field potentials of cubic and trigonal Yb3+ centers in a CsCaF3 crystal have been determined from the experimental energy-level schemes. These potentials are compared with the potentials of the analogous centers in the isomorphic hosts KMgF3 and KZnF3.
Bespalov V., Kazakov B., Leushin A., Safiullin G.   +3 more
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Design centering of a GaN photonic crystal nanobeam

2015 17th International Conference on Transparent Optical Networks (ICTON), 2015
It is well known that structures containing photonic crystal cavities produce cavity modes with extremely large Q-factors. This type of structure can be hyper sensitive to both design and manufacturing processes. Each parameter, be it structural or material will have a tolerance associated with it and the purpose of design centering is to obtain a ...
Jonathan R. Pugh, Martin J. Cryan
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Secondary photorefractive centers in Sn_2P_2S_6:Sb crystals

Optics Letters, 2011
Secondary photorefractive centers in Sb-doped Sn2P2S6 have a lifetime comparable to the formation time of the space-charge grating. This considerably affects the dynamics of two-beam coupling and results in a new type of transient gain enhancement for preilluminated samples.
Dean R, Evans, Alexandr, Shuymelyuk, Gary, Cook, Serguey, Odoulov   +3 more
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Colored Centers in Ionic Crystals

2000
When a vacancy is created in a crystal, an electron may be trapped at this location. This bound electron can absorb light at well defined frequencies, thus changing the color of the crystal.
Jean-Louis Basdevant, Jean Dalibard
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Stabilization of U1-centers and laser color centers in LiF:OH crystals

AIP Conference Proceedings, 2019
The formation of U1-centers in LiF:OH crystals, γ-irradiated to a dose of 1.3×104 C/kg at a temperature of 80 K, is considered in this study. The band at νmax = 2315 cm−1 is the main band of local interstitial hydrogen ions vibrations, which is more stable at room temperature (in a few month) than the additional band at νmax = 2260 cm−1.
L. I. Bryukvina, N. A. Ivanov, D. S. Glazunov   +2 more
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On the V-centers in KBr Crystals

Journal of the Physical Society of Japan, 1958
The natures of V bands in the additively colored crystals of KBr has been investigated. Mollwo's results were confirmed and extended. A new technique of additive coloring was devised to produce a high concentration of V centers in the crystal of KBr. By using this method, the degree of coloration could be increased by about ten times of.
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On the N Centers in KCl Crystals

Journal of the Physical Society of Japan, 1962
The optical and thermal natures of N (N 1 and N 2 ) centers in additively colored KCl crystals were investigated. These centers were optically stable, but thermally sensitive. Their thermal stabilities were contrasting, N 1 center being far more stable than N 2 center. They were found to have intimate relations with R center.
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Transformations of body-centered cubic crystals composed of hard or soft spheres to liquids or face-centered cubic crystals

The Journal of Chemical Physics, 2019
The monodispersed hard-sphere system is one of the simplest models for the study of phase transitions. Despite intensive studies of crystallization and melting of hard-sphere face-centered cubic (FCC) crystals, the phase transformations of hard-sphere body-centered cubic (BCC) crystals have not been explored because hard spheres cannot form a stable ...
Feng Wang, Yilong Han
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