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| 1 | Pollen flux and vertical dispersion in coniferous and deciduous broadleaved mixed forest in the Changbai Mountains显示文摘The pollen flux in coniferous and deciduous broadleaved mixed forest in the Changbai Mountains is presented in one year's experiments. The results indicate that arboreal pollen percentages are more than 65% and pollen flux is higher than 5000 grain·cm-2·a-1,while less than 2% and lower than 1000 grain·cm-2·a-1 for shrubby pollen,and less than 20% and lower than 3000 grain·cm-1·a-1 for herbaceous pollen for most samples at different heights. The pollen assemblages are similar to those in the samples under 8 m height where Pinus and Ouercus are dominant and followed by the few non-local pollen types,and Fraxinus percentages are high with a few non-local pollen types at 16 m to 32 m height as well as non-local pollen clearly increased at 40 m height. Comparisons between pollen assemblages and vegetation composition suggest that similarities are higher for pollen trap samples than for surface moss samples. | XU QingHai LI YueCong ZHOU LiPing LI YiYin ZHANG ZhenQing LIN FengYou | 2007 | Chinese Science Bulletin2007，52，11： | 6 |
| 2 | On tectonic movement in the South China Sea during the Cenozoic显示文摘The tectonic movement taking place at the end of Cretaceous and the beginning of Cenozoic had opened the Cenozoic phase of polycyclic tectonic movements,then the whole crust of the South China Sea had been mainly subjected to the regional stress field of tectonic tension,which was characterized by rifting depression.Seven times of regional tectonic movement and sedimentation had been assembled into a geological development history of polycyclic oscillation.Especially,the tectonic movements were strongly intensified at the end of Cretacious and the beginning of Paleagene,between Late Eocene and Mid-Oligocene,during Mid-and Late Miocene.These three times of tectonic movement had built the most important regional tectonic interfaces in the South China Sea.Crust movements of the South China Sea were the result and epitome of interaction of the Eurasia,Pacific and Indo-Australia plates,that is,they were introduced by polycyclic changes of directions,rates and strengths of lithospheric movements and asthenospheric flows across the Pacific and Indo-Australia plates. | LIN Changsong CHU Fengyou GAO Jinyao TAN Yonghua | 2009 | Acta Oceanologica Sinica2009，28，1： | 4 |
| 3 | The Impact of Regional Rainfall on Runoff of Yachi River of Guizhou显示文摘Based on monthly runoff data of Yachi River of Guizhou from April 2014 to May 2015,and monthly rainfall data of Guiyang,Xichang,Wenjiang and Chongqing weather stations from January 2007 to November 2015,the influence of temporal-spatial component of regional rainfall on monthly runoff of Yachi River was analyzed by using REOF,multiple linear regression analysis and harmonic analysis.Temporal-spatial change of monthly rainfall around Yachi River mainly contained four kinds of modes.The first mode was northwest-southeast type,and the second mode was south-north type,and the third mode was east-west mode.Temporal components of the three modes were all quasi equilibrium seasonal and interannual changes.Among them,the first and second modes had stable seasonal change,while seasonal change of the third mode was the most unstable,and drought-flood situation of season variation was easy to happen.Seasonal change form of monthly runoff in Yachi River was obviously different from regional monthly rainfall,and it was mainly affected by underlying surface topography and human activity(reservoir and hydropower station),and could not make a natural response to seasonal change of rainfall in time.The third mode of regional monthly rainfall and cycle fitting amount of had insignificant impact on monthly runoff of Yachi River,while the first mode of regional monthly rainfall and cycle fitting amount showed significantly positive correlation with monthly runoff of Yachi River.The second mode of regional monthly rainfall and cycle fitting amount had significantly negative correlation with monthly runoff of Yachi River,and Yachi River had significant water-storage regulation effect on the mode component.Yachi River did not have water-storage regulation effect on flood component of seasonal variation of regional monthly rainfall. | Yang Dongfang Wang Fengyou Wang Lin Zhang Rong Zhu Sixi | 2017 | Meteorological and Environmental Research2017，8，1： | 2 |
| 4 | Moisture-preventing MAPbI_(3) solar cells with high photovoltaic performance via multiple ligand engineering显示文摘Perovskite solar cells present one of the most prominent photovoltaic technologies,yet their stability,and engineering at the molecular level remain challenging.We have demonstrated multifunctional molecules to improve the operating stability of perovskite solar cells while depicting a high-power conversion efficiency.The multifunctional molecule 4-[(trifluoromethyl)sulphanyl]-aniline(4TA)with trifluoromethyl(-CF_(3))and aniline(-NH_(2))moieties is meticulously designed to modulate the perovskite.The-CF_(3) and-NH_(2) functional groups have strong interaction with perovskite to suppress surface defects to improve device stability,as well as obtain large crystal grains through delaying crystallization.Moreover,this-CF_(3) forms a hydrophobic barrier on the surface of the perovskite to prevent cell decomposition.Consequently,the performance of the perovskite solar cells is remarkably improved with the efficiency increased from 18.00% to 20.24%.The perovskite solar cells with multifunctional molecular maintaining 93% of their original efficiency for over 30 days(-55%humidity)in air without device encapsulation,exhibiting a high long-term stability.Moreover,the lead leakage issue of perovskite solar cells has also been suppressed by the built-in 4TA molecule,which is beneficial to environment-friendly application.Ultimately,we believe this multifunctional small molecule provides an available way to achieve high performance perovskite solar cells and the related design strategy is helpful to further develop more versatile materials for perovskite-based optoelectronic devices. | Xin Li Jinyue Du Hui Duan Haoyan Wang Lin Fan Yunfei Sun Yingrui Sui Jinghai Yang Fengyou Wang Lili Yang | 2022 | Nano Research2022，15，2： | 1 |
| 5 | Full-scale chemical and field-effect passivation:21.52% efficiency of stable MAPbI_(3) solar cells via benzenamine modification显示文摘Organic-inorganic metal halide perovskite solar cells have achieved high efficiency of 25.5%.Finding an effective means to suppress the formation of traps and correlate stability losses are thought to be a promising route for further increasing the photovoltaic performance and commercialization potential of perovskite photovoltaic devices.Herein,we report a facile passivation model,which uses a multi-functional organic molecule to simultaneously realize the chemical passivation and field-effect passivation for the perovskite film by an upgraded anti-solvent coating method,which reduces the trap states density of the perovskite,improves interface charge transfer,and thus promotes device performance.In addition,the hydrophobic groups of the molecules can form a moisture-repelling barrier on the perovskite grains,which apparently promotes the humidity stability of the solar cells.Therefore,the optimal power conversion efficiency(PCE)of perovskite solar cells after synergistic passivation reaches 21.52%,and it can still retain 95%of the original PCE when stored in-40%humidity for 30 days.Our findings extend the scope for traps passivation to further promote both the photovoltaic performance and the stability of the perovskite solar cells. | Fengyou Wang Meifang Yang Yuhong Zhang Jinyue Du Shuo Yang Lili Yang Lin Fan Yingrui Sui Yunfei Sun Jinghai Yang | 2021 | Nano Research2021，14，8： | 1 |
| 6 | Perovskite/silicon-based heterojunction tandem solar cells with 14.8%conversion efficiency via adopting ultrathin Au contact显示文摘A rising candidate for upgrading the performance of an established narrow-bandgap solar technology without adding much cost is to construct the tandem solar cells from a crystalline silicon bottom cell and a high open-circuit voltage top cell.Here,we present a four-terminal tandem solar cell architecture consisting of a selffiltered planar architecture perovskite top cell and a silicon heterojunction bottom cell.A transparent ultrathin gold electrode has been used in perovskite solar cells to achieve a semi-transparent device.The transparent ultrathin gold contact could provide a better electrical conductivity and optical reflectance-scattering to maintain the performance of the top cell compared with the traditional metal oxide contact.The four-terminal tandem solar cell yields an efficiency of 14.8%,with contributions of the top(8.98%)and the bottom cell(5.82%),respectively.We also point out that in terms of optical losses,the intermediate contact of self-filtered tandem architecture is the uppermost problem,which has been addressed in this communication,and the results show that reducing the parasitic light absorption and improving the long wavelength range transmittance without scarifying the electrical properties of the intermediate hole contact layer are the key issues towards further improving the efficiency of this architecture device. | Lin Fan Fengyou Wang Junhui Liang Xin Yao Jia Fang Dekun Zhang Changchun Wei Ying Zhao Xiaodan Zhang | 2017 | Journal of Semiconductors2017，38，1： | 0 |
| 7 | Upgraded antisolvent engineering enables 2D@3D quasi core-shell perovskite for achieving stable and 21.6%efficiency solar cells显示文摘Perovskite solar cells(PSCs)have become a promising alternative to sustainable energy due to their high power conversion efficiency(PCE)and low-cost processing.However,the practical applications of PSCs are still limited by the trade-off between high performance and poor stability under operation.Here,a2D@3D perovskite with quasi core-shell architecture linking the superiorities of both two-dimensional(2D)and three-dimensional(3D)perovskite is prepared through a novel upgraded antisolvent approach.The basic properties as well as the phase distribution and the charge transport behavior of the 2D@3D perovskite were systematically elucidated.A high PCE of 21.60%for 2D@3D PSCs is achieved due to the enhanced surface and grain boundaries passivation,improved energy level alignment and efficient holes transport.The 2D@3D perovskite device without encapsulation shows significantly improved stability at the room temperature(90%of initial PCE for 45 d with a relative humidity of 50%±5%)and relative thermal conditions(83%of initial PCE for 200 h under 85℃).Compared with traditional 3D PSCs,it proved that such 2D@3D perovskite configuration is an effective architecture for enhancing efficiency and improving stability and therefore will facilitate the further industrialization of PSCs. | Fengyou Wang Jinyue Du Yuhong Zhang Meifang Yang Donglai Han Lili Yang Lin Fan Yingrui Sui Yunfei Sun Jinghai Yang | 2021 | Journal of Materials Science & Technology2021，，33： | 0 |
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