High-quality γ-In2Se3 thin films and a γ-In2Se3/p-Si heterojunction were prepared using pulse laser deposition (PLD).

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SUMMARY This paper presents an adaptive power pricing scheme to address the fairness issue with relay selection and power allocation in decode‐and‐forward‐based opportunistic relaying networks, which is focused on the scenario where a distributed energy‐constrained cooperative communication system is employed over Rayleigh fading channels. Specifically, the proposed scheme is conducted analytically by obtaining the mathematical expression for the symbol error probability using the statistical characteristic of the signal‐to‐noise ratio, and it also takes the residual energy of nodes into consideration. Numerical results show that the proposed scheme has the advantage of better system reliability and further improves the throughput of the whole network compared with previous algorithms without considering fairness. Copyright © 2013 John Wiley & Sons, Ltd.

In this paper, large-sized ZnO microwires (MWs) were successfully synthesized without using any catalyst, following a simple chemical vapor deposition (CVD) method. Highly crystalline ZnO MWs of several hundred micrometers length having diameter in the range of 10–40[Formula: see text][Formula: see text]m were obtained. The synthesized MWs showed a hexagonal cross-sectional morphology and the longest MW was found to be 1[Formula: see text]mm long. The structural and optical properties of an individual large sized ZnO MWs were studied. Temperature-dependent photoluminescence (PL) spectra showed emissions for free excitons (FX) and donor-bound excitons (D0X) and decomposition of the D0X into FX was observed beyond 140[Formula: see text]K. The whispering gallery mode (WGM) lasing in an individual ZnO MW was achieved and also confirmed by two-dimensional finite difference time domain (2D-FDTD) method. These oversized ZnO MWs may find potential applications as WGM resonant cavities and optical waveguides.