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Interface engineering is a critical strategy for improving the performance of both polymer and organometal trihalide perovskite (e.g., CH3NH3PbI3) solar cells. A good interfacial material should fulfill several requirements including 1) good charge selectivity to improve the charge collection efficiency at the corresponding electrodes, 2) matched energy levels with the conduction band and valence...
Perovskite hybrid solar cells (pero-HSCs) have attracted significant attention due to their promising photovoltaic efficiency, solution processibility, and low-cost manufacturing process. In this study, we report efficient solution-processed planar heterojunction (PHJ) pero-HSCs. By fine-tuning the film formation procedures, uniform perovskite thin films with high surface coverage and superior optical...
One essential requirement for WSN is the reliability of the applications. Performance evaluation, therefore, is of great significance before the successful deployment of the network. In this paper, we consider the reliability based on a specific type of network lifetime. Our network lifetime is defined based on the representative consideration of coverage and connectivity and has a common application...
This article has constructed the indicator system of the state-owned resources enterprises' achievements appraisal. In view of the fact that each evaluating indicator's characteristic as well as the domestic and foreign related standard, have formulated the evaluation criteria and the corresponding rank. Then it introduced the superiority and the utilization of the entropy value method, and takes...
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