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H.264块匹配运动估计中UMHexagonS算法的优化

ISSN号：1002-8331
期刊名称：《计算机工程与应用》
时间：0
分类：TQ424.25[化学工程] TM914.4[电气工程—电力电子与电力传动]
作者机构：[1]School of Computer and Communication, Hunan University of Technology, Zhuzhou 412007, China, [2]Department of Chemistry, Institute of Molecular Functional Materials and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hongkong SAR, China, [3]Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China, [4]Department of Electrical & Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hongkong SAR, China
相关基金：Project supported by the National Natural Science Foundation of China （Grant No. 60871007）.Acknowledgment We thank Prof. Soh and Dr. Liu （Mechanical Engineering Department, The University of Hong Kong） for their help with the AFM measurement, and also Ma Dickey and Zhou Cong-Ying for helpful technical discussions.

关键词：太阳能电池, 传输性能, 聚合物, 结晶度, 相分离, 纳米相, 调整, 超声波照射, crystallinity, polymer solar cell, ultrasonic irradiation, nanoscale phase separation

中文摘要：

In this paper, we report a high-performance P3HT/PCBM bulk-heterojunction solar cell with a power conversion efficiency of 4.85% fabricated by adjusting the polymer crystallinity and nanoscale phase separation using an ultrasonic irradiation mixing approach for the polymer. The grazing incidence X-ray diffraction, UV/Vis spectroscopic, and atomic force microscopic measurement results for the P3HT/PCBM blend films reveal that the P3HT/PCBM film fabricated by ultrasonic irradiation mixing of the P3HT and PCBM solutions for 10 min has a higher degree of crystallinity, a higher absorption efficiency, and better phase separation, which together account for the higher charge transport properties and photovoltaic cell performance.

英文摘要：

In this paper, we report a high-perfornmnce P3HT/PCBM bulk-heterojunction solar cell with a power conversion efficiency of 4.85% fabricated by adjusting the polymer crystallinity and nanoscale phase separation using an ultrasonic irradiation mixing approach for the polymer. The grazing incidence X-ray diffraction, UV/Vis spectroscopic, and atomic force microscopic measurement results for the P3HT/PCBM blend films reveal that the P3HT/PCBM film fabricated by ultrasonic irradiation mixing of the P3HT and PCBM solutions for 10 min has a higher degree of crystallinity, a higher absorption efficiency, and better phase separation, which together account for the higher charge transport properties and photovoltaic cell performance.

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