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Article
Resting temperature of PbI2 in perovskite solar cells
In the two-step preparation of perovskite solar cells, the ambient temperature is the main factor affecting the performance of the cells and controlling the crystallization of perovskite films. In this paper, ...
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Article
Controllable wettability surface of ZnO nanorods on glass substrates prepared by simple wet chemical method for patterned processing
The surface wettability can be well controlled by coatings and roughness. In this work, we prepared ZnO film and nanorods with different precursor concentration range from 0.002 mol/L, 0.02 mol/L to 0.2 mol/L ...
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Article
Fabrication and properties of NaNbO3 sintered by two-step method
Ferroelectric phase has been discovered in dense sodium niobate NaNbO3 ceramic sintered by two-step method. At ambient temperature, its absolute principal rhombohedral phase R3c rather than antiferroelectric phas...
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Article
Effects of thiourea dosage on the structural, optical and electrical properties of one-step solution processed Cu3BiS3 film for photovoltaics
Recently, Cu3BiS3 has emerged as an attractive photovoltaic material with low cost and excellent light absorption. However, its device application is still hindered by relatively poor material quality. Here, a on...
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Article
A circular-polarized metasurface planar reflector antenna based on Pancharatnam–Berry phase
Due to the significance of circular-polarized antennas for satellite communications applications, a planar circular-polarized reflector antenna is proposed in this paper, which consists of a circular polarizat...
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Article
Efficient orbital angular momentum vortex beam generation by generalized coding metasurface
A method to efficiently generate orbital angular momentum (OAM) vortex beam is proposed by introducing generalized coding metasurface (CM). Firstly, a linearly polarized (LP) cross-polarization transmission un...
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Article
Design of reducing mutual coupling in between two closely spaced dual-frequency antennas based on combined electromagnetic soft surfaces
In this paper, two closely spaced dual-frequency antennas are developed using the combined electromagnetic soft surfaces loading techniques for reducing their mutual coupling. The dual-frequencies antenna is d...
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Article
Flake-like oxygen-deficient lithium vanadium oxides as a high ionic and electronic conductive cathode material for high-power Li-ion battery
Low electronic and ionic conductivity for LiV3O8 cathode material could lead to poor cycling stability and rate capability, which are considered as the main restraint for its application in Li-ion battery. A nove...
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Article
Formation energies of substitutional NAs and split interstitial complexes in dilute GaAsN alloys with different growth orientations
To quantitatively evaluate the formation energies of the (N–N)As/(N–As)As/(As–As)As split interstitials in dilute GaAsN alloys, first-principles total-energy calculations using a projector augmented wave method a...
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Article
Molecular dynamics simulations on tensile behaviors of single-crystal bcc Fe nanowire: effects of strain rates and thermal environment
Molecular dynamics simulations were applied to investigate tensile behaviors of single-crystal Fe nanowire in 〈001〉 direction under different strain rates. Results show that the nanowire deforms by twinning wi...
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Article
Structural, magnetic and electrical transport properties in electron-doped La0.85Hf0.15MnO3 epitaxial film
Using a pulsed laser deposition method, the electron-doped La0.85Hf0.15MnO3 (LHMO) film with the thickness of 90 nm was epitaxially grown on LaAlO3 (001) single crystal substrate. The structural, magnetic and ele...
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Article
Synthesis, characterization and photoluminescence property of La-doped ZnO nanoparticles
La-doped ZnO nanoparticles were synthesized via a facile and surfactant-free chemical precipitation route, and the effects of lanthanum do** concentration on the structures, morphologies and photoluminescenc...
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Article
Shear behaviors of single crystal nickel at different temperatures: molecular dynamics simulations
Shear behaviors of a single crystal nickel along the [ \( \overline{1} 10 \) ...
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Article
Electronic properties investigation of silicon supersaturated with tellurium
Hall measurements as a function of temperature and current–voltage (I–V) measurements have been used to study the electronic properties of silicon supersaturated with tellurium (Te). The samples were fabricate...
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Article
Influence of Bi underlayer on the magnetic properties of FexPt100-x (x =40∼58) films
We have studied the effect of a Bi underlayer on ordering and coercivity Hc of FexPt100-x thin films (atomic content of Fe x=40∼58). We found that the Bi underlayer enhances Hc remarkably. After annealing at 400 ...
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Article
Ultraviolet photodetection properties of indium oxide nanowires
Photoconducting properties of In2O3 nanowires were studied. Devices based on individual In2O3 nanowires showed a substantial increase in conductance of up to four orders of magnitude upon exposure to UV light. Su...