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One-dimensional (1D) single crystalline CdS nanostructures have been successfully synthesized via a diphenylthiocarbazone-assisted solvothermal route. The results revealed that the microstructure and optical absorption properties of 1D CdS nanostructures were temperature and time dependent owing to thermodynamically and kinetically controlled growth. Single crystalline CdS nanowires with a diameter of 80 nm and length of 20 μm were synthesized at 180°C for 96 h. At moderate temperature (180°C), the morphology of the products transformed from irregular short rods to uniform long rods as the reaction time prolonging in a kinetically controlled growth regime. Only nanorods were obtained at a temperature as low as 120°C even extending reaction time to 260 h due to thermodynamic limited growth. At high temperature (250°C in this system), the products were nanowires with larger diameter but lower aspect ratio since the growth rates on both lateral and axial directions were accelerated. Moreover, the optical absorption spectra revealed that the CdS nanowires showed a blue shift compared with bulk CdS. Two optical absorption peaks appeared due to the nanometer effect in the radial and lengthwise directions of CdS nanowires. The growth mechanism of 1D CdS nanostructures was discussed.

Self-assembly of nanoparticles has attracted more attention in the last decade due to their potential applications in many fields, such as sensors, surface-enhanced Raman scattering (SERS) substrate and optical/plasmonic components. Wrinkles, as one kind of common natural surface, are used to be a template/substrate in microfluidic sieves and solar cells. In this work, a wrinkled template with depth of about 200 nm and period of 1.64 μm is used for modulating the self-assembly process of gold nanorods (GNRs) to obtain patterned self-assemblies for potential application. In order to fully reflect the role of the wrinkled template in the self-assembly, the templates are placed uprightly in the GNRs solution to intensify the interplay between the wrinkled surface and nanorods. The self-assembly process is carried out in a climate chamber, where the temperature and humidity can be controlled programmingly to modulate the self-assembly conditions. The experimental results show that for the fixed wrinkled template, an obvious effect on the self-assembly is at the temperature range from 30°C to 50°C. Nematic, curved (mostly are end-to-end) and transition mode can be obtained. According to humidity, GNRs tend to form the nematic fashion in humidity lower than 60%, and the curved fashion in a higher humidity.

The properties of an electron strongly coupled to longitudinal optical (LO) phonon in RbCl parabolic quantum dot (PQD) with a hydrogen-like impurity at the center were investigated at a finite temperature. We have obtained the vibrational frequency of a strong-coupling polaron in RbCl PQD by using linear combination operator method. We then calculate the effects of temperature, the Coulombic impurity potential and the effective confinement strength on the vibrational frequency by using unitary transformation and the quantum statistics theory methods. The influences of the temperature, the Coulombic impurity potential and the effective confinement strength on the ground state energy and the ground state binding energy are also analyzed. The strengths of these quantities increase with raising temperature. The vibrational frequency is an increasing function of the Coulombic impurity potential and the effective confinement strength. The ground state energy is an increasing function of the effective confinement strength, whereas it is a decreasing one of the Coulombic impurity potential. The ground state binding energy is an increasing function of the Coulombic impurity potential, whereas it is a decayed one of the effective confinement strength.

In this paper, a thermally aware equivalent single conductor is proposed, along with analytical modeling to evaluate the parasitic parameters of multilayer graphene nanoribbon (MLGNR) as interconnect, and its performance is analyzed in terms of delay and power delay product (PDP) for 32nm, 22nm and 16nm technology nodes at variable global interconnect lengths (500–2000m). It was examined that with rising temperature, there is a strident decrease in the mean free path (MFP) of GNR interconnect, which further influences its own resistance at global length (2000$\mu$m) for all three technology nodes. The simulation tool Simulation Program with Integrated Circuit Emphasis (SPICE) is used to estimate and compare MLGNR performance in terms of signal delay and PDP for three different technology nodes. It is revealed from the outcomes that the propagation delay and PDP increase at long interconnects (500–2000$\mu$m) over a temperature range of 200–500K for deep submicron technology nodes (16nm, 22nm and 32nm). A similar investigation was performed on the copper interconnect, and it was discovered that the MLGNR performs better in terms of delay and PDP at global levels with a temperature range of 200–500K for nano-scaled technology nodes (32nm, 22nm and 16nm).

The mechanical properties of graphene oxide (GO) during tensile fracture were studied using molecular dynamics methods, and the influence of hydroxyl and epoxy groups on the mechanical properties of GO was explored. In addition, the changes in mechanical properties of GO under different temperatures and strain rates were studied to gain a deeper understanding of its mechanical behavior. The results indicate that hydroxyl and epoxy groups have a significant influence on the elastic modulus, ultimate stress, and ultimate strain of GO. The presence of hydroxyl and epoxy groups can alter the molecular structure of GO, thereby affecting its ultimate stress and strain. When the number of hydroxyl groups is 16 and the number of epoxy groups is 20, the ultimate stress decreases by about 31% and the elastic modulus decreases by about 20%. The variation of elastic modulus, ultimate stress, and ultimate strain of GO with temperature was studied at three temperatures: 300K, 500K, and 800K. As the temperature increases, the amplitude of atomic vibration increases and internal defects and cracks in GO continue to form and expand. At the same time, its coefficient of thermal expansion also increases, causing deformation and loosening of the crystal structure, resulting in a decrease of about 10% in the ultimate stress of GO, and a slight decrease in the ultimate strain and elastic modulus. Finally, the influence of different strain rates on the mechanical properties of GO was studied. As the strain rate increases, the intermolecular interactions within GO are rapidly altered, and the previously loose structure gradually becomes tightly ordered, resulting in an increasing trend in the elastic modulus, ultimate stress, and ultimate strain of GO.