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Your search keyword '"Zhou, Ruimin"' showing total 2 results
Start Over Author "Zhou, Ruimin" Publisher nature publishing group
2 results on '"Zhou, Ruimin"'

1. All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies

Author

Zhou, Ruimin, Jiang, Zhaoyan, Yang, Chen, Yu, Jianwei, Feng, Jirui, Adil, Muhammad Abdullah, Deng, Dan, Zou, Wenjun, Zhang, Jianqi, Lu, Kun, Ma, Wei, Gao, Feng, Wei, Zhixiang, Zhou, Ruimin, Jiang, Zhaoyan, Yang, Chen, Yu, Jianwei, Feng, Jirui, Adil, Muhammad Abdullah, Deng, Dan, Zou, Wenjun, Zhang, Jianqi, Lu, Kun, Ma, Wei, Gao, Feng, and Wei, Zhixiang

Abstract

The high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance., Funding Agencies|Ministry of Science and Technology of ChinaMinistry of Science and Technology, China [2016YFA0200700, 2016YFF0203803]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51961135103, 51973043, 21822503, 21534003, 21721002]; Beijing Nova ProgramBeijing Municipal Science & Technology Commission [Z17110001117062]; Youth Innovation Promotion Association; K.C.Wong Education Foundation; Chinese Academy of SciencesChinese Academy of Sciences; Swedish Research Council VRSwedish Research Council [2018-06048, 2018-05484]

Published
2019
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2. Characterization of Plasmodium ovale spp. imported from Africa to Henan Province, China.

Author

Zhou R, Li S, Zhao Y, Yang C, Liu Y, Qian D, Wang H, Lu D, and Zhang H

Subjects
Africa ethnology, China epidemiology, Communicable Diseases, Imported parasitology, Humans, Malaria parasitology, Prevalence, Time Factors, Communicable Diseases, Imported epidemiology, Malaria epidemiology, Plasmodium ovale classification, Plasmodium ovale isolation & purification
Abstract

As indigenous malaria has decreased over recent decades, the increasing number of imported malaria cases has provided a new challenge for China. The proportion of imported cases due to Plasmodium ovale has increased during this time, and the difference between P. ovale curtisi and P. ovale wallikeri is of importance. To better understand P. ovale epidemiology and the differences between the two subspecies, information on imported malaria in Henan Province was collected during 2010-2017. We carried out a descriptive study to analyze the prevalence, proportion, distribution, and origin of P. o. curtisi and P. o. wallikeri. It showed that imported P. ovale spp. accounts for a large proportion of total malaria cases in Henan Province, even more than that of P. vivax. This suggests that the proportion of P. ovale cases is underestimated in Africa. Among these cases, the latency period of P. o. curtisi was significantly longer than that of P. o. wallikeri. More attention should be paid to imported ovale malaria to avoid the reintroduction of these two subspecies into China.

Published
2019
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